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User Manual: Bose T8S ToneMatch Mixer - Bose Product Support

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T4S/T8S ToneMatch®
Mixer

Owner’s Guide

Important Safety Instructions
Please read and keep all safety and use instructions.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.

11.
12.

Read these instructions.
Keep these instructions.
Heed all warnings.
Follow all instructions.
Do not use this apparatus near water.
Clean only with a dry cloth.
Do not block any ventilation openings. Install in accordance with the
manufacturer’s instructions.
Protect the power cord from being walked on or pinched, particularly at plugs,
convenience receptacles, and the point where they exit from the apparatus.
Only use attachments/accessories specified by the manufacturer.
Use only with the cart, stand, tripod, bracket, or table specified by the
manufacturer or sold with the ­apparatus. When a cart is used, use
caution when moving the cart/apparatus combination to avoid injury
from tip-over.
Unplug this apparatus during lightning storms or when unused for long periods
of time.
Refer all servicing to qualified personnel. Servicing is required when the
apparatus has been damaged in any way such as power-supply cord or plug is
damaged, liquid has been spilled or objects have fallen into the apparatus, the
apparatus has been exposed to rain or moisture, does not operate normally, or
has been dropped.

WARNINGS/CAUTIONS:
This product contains magnetic material. Consult your physician on whether
this might affect you implantable medical device.
•
•
•
•
•
•
•
•
•

•

This product is not intended for installation or use in indoor water facility areas
(including, without limitation, indoor pools, indoor water parks, hot tub rooms,
saunas, steam rooms and indoor skating rinks).
To reduce the risk of fire or electrical shock, do NOT expose this product to rain,
liquids or moisture. Not applicable for products rated IPX4-9.
Keep the product away from fire and heat sources. Do NOT place naked flame
sources, such as lighted candles, on or near the product.
Do NOT make unauthorized alterations to this product.
Do NOT use a power inverter with this product.
Do NOT use in vehicles or boats.
Use this product only with the power supply provided.
Do NOT place or install the bracket or product near any heat sources, such as
fireplaces, radiators, heat registers or other apparatus (including amplifiers) that
produce heat.
Do not use the ToneMatch® T4S/T8S mixer with a tripod/stand that is unstable.
The mixer is only designed for use on a 1/4" screw (6 mm), and the tripod/stand
must be capable of supporting a device with a minimum weight of 1.9 kg (4.1 lbs)
and an overall size of 214 x 311 x 83 mm (8.4 x 12.25 x 3.25 inches). Using a tripod/
stand that is not designed to support the size and mass of the T4S/T8S mixer
may lead to an unstable and hazardous condition that could result in injury.
Contains small parts which may be a choking hazard. Not suitable for
children under age 3.

NOTES:
• The speaker wire and interconnect cables included with this system are not
approved for in-wall installation. Please check your local building codes for the
correct type of wire and cable required for in-wall installation.
• Where the mains plug or an appliance coupler is used as the disconnect device,
the disconnect device shall remain readily operable.
• Due to ventilation requirements, Bose does not recommend placing the product
in a confined space such as in a wall cavity or in an enclosed cabinet.

Regulatory Information
This device complies with part 15 of the FCC Rules and with Industry Canada licenseexempt RSS standard(s). Operation is subject to the following two conditions: (1)
This device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.
This product conforms to all applicable EU directive requirements. The
complete Declaration of Conformity can be found at
www.Bose.com/compliance.
Information About Products That Generate Electrical Noise (FCC Compliance
Notice for US)
Note: This equipment has been tested and found to comply with the limits for a Class
A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with
the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at
one’s own expense.
Changes or modifications not expressly approved by Bose Corporation could void
the user’s authority to operate this equipment.

Names and Contents of Toxic or Hazardous Substances and Elements
Toxic or Hazardous Substances and Elements

Cadmium Hexavalent Polybrominated
(Cd)
(CR(VI))
Biphenyl (PBB)

Polybrominated
diphenylether
(PBDE)

Lead
(Pb)

Mercury
(Hg)

PCBs

X

0

0

0

0

0

Metal parts

X

0

0

0

0

0

Plastic parts

0

0

0

0

0

0

Speakers

X

0

0

0

0

0

Cables

X

0

0

0

0

0

Part Name

This table is prepared in accordance with the provisions of SJ/T 11364.
0: Indicates that said hazardous substance contained in all of the homogenous materials for this part
is below the limit requirement of GB/T 26572.
X: Indicates that said hazardous substance contained in at least one of the homogenous materials
used for this part is above the limit requirement of GB/T 26572.

This symbol means the product must not be discarded as household
waste, and should be delivered to an appropriate collection facility for
recycling. Proper disposal and recycling helps protect natural resources,
human health, and the environment. For more information on disposal and
recycling of this product, contact your local municipality, disposal service,
or the shop where you bought this product.

Shielded cables are required to maintain regulatory compliance.
This product complies with the Canadian ICES-003 Class A specifications.
CAN ICES-3(A)/NMB-3(A)
For China:
This product meets all EN55103-2 immunity requirements for E2 electromagnetic
environment.

仅适用于海拔 2000m 以下地区安全使用
Only suitable for use at areas with altitude less than 2000 m.

Provided by DCE Safety

2 - English

Contents
Introduction
Product Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  5
Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  5
Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  5

Control and Connection Panels
T4S ToneMatch® Mixer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  6
Control Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  6
Connection Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  7
T8S ToneMatch® Mixer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  8
Control Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  8
Connection Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  9

System Setup
Removing/Attaching the Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10
Mounting Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Mounting the T4S/T8S on a Camera Tripod Stand. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Connecting the T4S via Digital Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Connecting the T4S/T8S via Analog Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Connecting the ToneMatch® Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Connecting the T4S/T8S to Your Computer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Connecting a Flash Drive to the T4S/T8S. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Operation
Reading the T4S/T8S Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Optimizing Input Gain and Output Volume. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Using the Master Volume Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Muting a Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Muting Channel Effects. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Using the Rotary Selector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Editing the Sound of a Channel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Using the Pan/Aux Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Using the Tuner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Selecting a ToneMatch® Preset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Adjusting zEQ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  22
Adjusting Para EQ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  23
Using Compressor/Gate Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  23
Using Modulation Effects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  25
Adding Delays. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Adding Reverb. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

English - 3

Contents
Using Global Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27
Selecting a Reverb Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27
Using the Prefs Utilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  28
Loading and Saving Scenes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Sharing a Scene. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  33
Bose Scenes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  35
Factory Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  35
Singer/Songwriter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
DJ/Playback. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  38
Full Band. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Factory Settings
Factory Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Care & Maintenance
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Technical Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Additional Resources
Contact Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  47
Importer Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  47
Additional Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  47
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  47

4 - English

Introduction

Product Overview
Take control of your music with T4S and T8S ToneMatch® mixers, compact 4 and 8 channel interfaces designed for performers.
Engineered with powerful DSP engines and intuitive user controls, they offer studio-quality EQ, dynamics and effects
processing. Sound great with integrated Bose® ToneMatch® processing and zEQ, especially when connected to a Bose L1 or F1
system for full end-to-end tonal control. Play confidently on stage with these rugged ToneMatch mixers using tactile controls,
easy-to-read LED displays and scene recall. ToneMatch mixers, the ultimate on-stage companions for performing artists.

Product Features
Powerful Audio Processing
• Updated, studio-quality effects with advanced digital
audio processing
• Effects include compressor, limiter, de-esser, noise gate,
chorus, flanger, phaser, tremolo, delay, and reverb
• Bose® ToneMatch® processing for natural-sounding vocals
and instruments
• zEQ focuses the sound of ToneMatch presets for effective
adjustments on the fly
• Independent ToneMatch, EQ, dynamics and effects per
channel
• Dedicated reverb for Aux sends, and a global shared
reverb for use across all channels
• Master output EQ helps compensate for venue acoustics
• Full end-to-end tonal optimization when used with Bose L1
and F1 systems

Seamless Live Control
• Tactile controls and indicators designed for live on-stage
use by musicians and DJs
• Fast-learning user interface
• Built-in tap tempo delay, chromatic tuner, and recallable scenes
• LED display and illuminated controls are easy to read and
use, even on dimly-lit stages

High-Density Connectivity
• Unprecedented connectivity and control in a small digital
stereo mixer
• Four (T4S) or eight (T8S) high-quality audio preamps with
XLR-combo jacks for microphones or instruments, and
switchable phantom power
• Two Aux inputs for additional sources two (T4S) or four
(T8S) Aux sends
• USB-A and -B for USB drive playback or PC/Mac interfacing
• ToneMatch outputs for digital audio and power (T4S only)
• Balanced ¼” TRS and XLR (T8S only) stereo outputs
• Independent headphone output

Convenient Gig-Ready Features
• Rugged enclosure with a protective magnetic cover to
protect controls and connectors
• Includes a ToneMatch cable for connecting to a Bose L1
Model II or L1 Model 1S system for digital audio and power
(T4S), or includes a universal power supply (T8S)
• Bottom insert allows you to use standard camera
mounting accessories to keep your ToneMatch mixer
within reach

Unpacking
See the following table for what your mixer carton will include:

T4S

T4S ToneMatch mixer and cover

ToneMatch Cable

T8S

T8S ToneMatch mixer and cover

ToneMatch power supply

For a complete list of optional equipment and accessories, please visit www.Bose.com.
English - 5

Control and Connection Panels

T4S ToneMatch® Mixer
Control Panel
Figure 1. T4S Control Panel

q
w

d

e

s

r
t

a

y
u

f
o

i

q INPUT SIGNAL/CLIP LEDs (1-4) – Displays the input signal status in color:
Green: Indicates the presence of an input signal
Red: Indicates input source clipping
w TRIM CONTROLS (1-4) – Adjusts the input sensitivity for the respective channel.
e DISPLAY – Provides function menus and system information.
r EDITING CONTROLS – These three rotary/push-button controls allow you to select or adjust items/values
appearing on the display.
t CH EDIT BUTTONS (1-4) – Selects the channel you want to modify.
y FX MUTE BUTTONS (1-4) – Bypasses the Mod, Delay, and Reverb effects on the selected channel.
u VOLUME CONTROLS (1-4) – Adjusts the volume level for the respective channel.
i MUTE BUTTONS (1-4) – Silences the audio output for the respective channel.
o MASTER VOLUME CONTROL – Adjusts the overall output level.
a HEADPHONE VOLUME CONTROL – Adjusts the volume level of the headphone output.
s ROTARY SELECTOR – Allows access to both global and channel-related parameters, which are adjusted
using the editing controls.
d PHANTOM POWER SWITCH – Applies +48V power to input channels 1-4. A red LED indicates that phantom
power is on.
f HEADPHONE JACK – For use with headphones only, with a minimum impedance of 24Ω.
6 - English

Control and Connection Panels
Connection Panel
Figure 2. T4S Connection Panel

w

e

r

USB AUDIO

MONO

t

y

( )

q

M

o

i

u

q POWER SWITCH – Turns the mixer on or off.
w USB 2.0 TYPE-B – A USB interface that allows you to connect the mixer to your computer.
e USB 2.0 TYPE-A – A USB interface that allows you to stream audio from your flash drive.
r ANALOG L/R OUTPUT – Main analog output. Accepts 1/4" TRS balanced or TS unbalanced cables.
t AUX OUTPUT – Two user-definable analog outputs. Can be configured for a pre-fader, post-EQ, and effects,
or post-fader output. Accepts 1/4" TRS balanced cables.
y AUX IN – Analog input channels 5/6. Accepts 1/4" TRS balanced or TS unbalanced cables for line-level
inputs. Can be used for stereo input signals.
u INPUTS 1-4 – Analog input channels 1-4. Accepts XLR balanced cables for microphones or 1/4" TRS balanced
or TS unbalanced cables for high-impedance inputs, such as guitars.
i DIGITAL MAIN OUTPUT L – Connect digitally in stereo to two L1® Model 1S/II systems. Note: Only used in
stereo with Digital Main Output R.
o POWER PORT/DIGITAL MAIN OUTPUT R – A digital output used by the L1 Model 1S/II system. Delivers
power to the T4S mixer from the L1 Model 1S/II power stand. Can also deliver power from an AC outlet via
a ToneMatch power supply (not included with the T4S). Accepts the included ToneMatch® cable.
CAUTION: Although the ToneMatch port accepts a standard RJ-45 connector, do NOT connect the T4S
to a computer or phone network.

English - 7

Control and Connection Panels

T8S ToneMatch® Mixer
Control Panel
Figure 3. T8S Control Panel

q
w
e
r
t

f
d
s
a

y
u

o

i
g
q INPUT SIGNAL/CLIP LEDs (1-8) – Displays the input signal status in color:
Green: Indicates the presence of an input signal
Red: Indicates input source clipping
w TRIM CONTROLS (1-8) – Adjusts the input sensitivity for the respective channel.
e DISPLAY – Provides function menus and system information.
r EDITING CONTROLS – These three rotary/push-button controls allow you to select or adjust items/values
appearing on the display.
t CH EDIT BUTTONS (1-8) – Selects the channel you want to modify.
y FX MUTE BUTTONS (1-8) – Bypasses the Mod, Delay, and Reverb effects on the selected channel.
u VOLUME CONTROLS (1-8) – Adjusts the volume level for the respective channel.
i MUTE BUTTONS (1-8) – Silences the audio output for the respective channel.
o MASTER VOLUME CONTROL – Adjusts the overall output level.
a HEADPHONE VOLUME CONTROL – Adjust the volume level of the headphone output.
s STEREO OUTPUT METER – Allows you to visually measure your output level.
d ROTARY SELECTOR – Allows access to both global and channel-related parameters, which are adjusted
using the editing controls.
f PHANTOM POWER SWITCH – Applies +48V power to input channels 1-8. A red LED indicates that phantom
power is on.
g HEADPHONE JACK – For use with headphones only, with a minimum impedance of 24Ω.
8 - English

Control and Connection Panels
Connection Panel
Figure 4. T8S Connection Panel

q

w

e

r

t

y

USB AUDIO

MONO

( )

MAIN OUT

M

o

i

u

q POWER SWITCH – Turns the mixer on or off.
w USB 2.0 TYPE-B – A USB interface that allows you to connect the mixer to your computer.
e USB 2.0 TYPE-A – A USB interface that allows you to stream audio from your flash drive.
r ANALOG L/R OUTPUT – Main analog output. Accepts 1/4" TRS balanced and TS unbalanced cables.
t AUX OUTPUT – Four user-definable analog outputs. Can be configured for a pre-fader, post-EQ, and
effects, or post-fader output. Accepts 1/4" TRS balanced or TS unbalanced cables.
y AUX IN – Analog input channels 9/10. Accepts 1/4" TRS balanced or TS unbalanced cables for line-level
inputs. Can be used for stereo input signals.
u INPUTS 1-8 – Analog input channels 1-8. Accepts XLR balanced cables for microphones or 1/4" TRS balanced
or TS unbalanced cables for high-impedance inputs, such as guitars.
i XLR STEREO OUTPUT – Stereo analog output. Accepts XLR balanced cables for stereo output.
o DIGITAL POWER PORT – For use w/ ToneMatch power supply (see “Connecting the ToneMatch® Power
Supply” on page 14).
Note: The T8S is NOT designed to connect digitally to the L1® Model 1S/II.
CAUTION: Although the ToneMatch port accepts a standard RJ-45 connector, do NOT connect the T8S
to a computer or phone network.

English - 9

System Setup

Removing/Attaching the Cover
The T4S/T8S ToneMatch® mixer comes out of the carton with a cover installed on the top panel. The cover is
designed to protect the control panel while transporting or storing the mixer.
To remove the cover:
1.

Place thumbs on notches on front of cover and slide cover forward.

2.

Grab cover by the back and lift to remove it.

To attach the cover:
1.

Slide cover over the mixer, from back to front.

2.

The magnetized cover will engage on its own and secure itself to the mixer.

Figure 5. Removing and attaching the cover

10 - English

System Setup

Mounting Options
The T4S/T8S comes with a 1/4" (6 mm) mounting screw insert. This enables it to be mounted onto a number
of available products that include a 1/4" (6 mm) mounting screw, including a camera tripod stand.

Mounting the T4S/T8S on a Camera Tripod Stand
1.

Extend the camera tripod legs and secure at desired height.

2.

Remove the bracket from the top of the camera tripod stand and secure the bracket to the bottom of the
T4S/T8S with the screw. Make sure the small indentation on the T4S/T8S and the bump on the bracket
are aligned. See Figure 6.

3.

Secure the bracket with the T4S/T8S back onto the camera tripod stand. See Figure 8.

Figure 6. Securing bracket to T4S

Figure 8. Mounting T4S to tripod stand using bracket

Figure 7. Bracket attached to T4S

WARNING: Do not use the ToneMatch® T4S/T8S mixer with a tripod/stand that is unstable. The mixer
is only designed for use on a 1/4" screw (6 mm), and the tripod/stand must be capable of supporting
a device with a minimum weight of 1.9 kg (4.1 lbs) and an overall size of 214 x 311 x 83 mm (8.4 x 12.25
x 3.25 inches). Using a tripod/stand that is not designed to support the size and mass of the T4S/T8S
mixer may lead to an unstable and hazardous condition that could result in injury.
English - 11

System Setup

Connecting the T4S via Digital Connection
1.

Make sure the L1 Model 1S/II and T4S are powered off and the T4S Master volume control is set to
minimum.

2.

Plug one end of the ToneMatch® cable into the Power port/Digital Main Output R on the T4S. Plug the
other end of the ToneMatch cable into the ToneMatch port on the power stand.
Note: To connect the T4S to two L1 Model 1S/II power stands, connect a second power stand to the Digital
Main Output L port on the T4S using a ToneMatch cable.

3.

Turn on the mixer and then turn on the L1 Model 1S/II power stand.

4.

Connect your instruments and adjust levels. Refer to “Optimizing Input Gain and Output Volume” on
page 17.

Figure 9. Two L1 model II systems connected to a T4S via digital connection

MONO

( )

USB AUDIO

M

Note: The T8S cannot be connected digitally and cannot be powered by the L1 Model 1S/II.

12 - English

System Setup

Connecting the T4S/T8S via Analog Connection
1.

Make sure the device you are connecting to and the T4S/T8S are powered off and the T4S/T8S Master
volume control is set to minimum.

2.

Using XLR balanced cables, connect one or two devices to the XLR Stereo Outputs of your T8S (see
Figure 10).
Note: The T4S/T8S can be connected to a device via the Analog R Output port using a 1/4" TRS cable (sold
separately). Plug the other end of the TRS cable into the Analog Input port of the device. To connect the
T4S/T8S to two devices, connect a second device to the Analog L Output port on the T4S/T8S using a 1/4"
TRS cable.

3.

Connect a ToneMatch® power supply to the Power port of the T4S/T8S and plug it into a live AC outlet.
Refer to “Connecting the ToneMatch® Power Supply” on page 14.

4.

Turn on the T4S/T8S mixer and then turn on the device.

5.

Connect your instruments and adjust levels. Refer to “Optimizing Input Gain and Output Volume” on
page 17.

Figure 10. Two F1 systems connected to a T8S via analog connection
USB AUDIO

( )

MAIN OUT

M

USB AUDIO

MONO

( )

MAIN OUT

M

English - 13

System Setup

Connecting the ToneMatch® Power Supply
The ToneMatch power supply provides power for the T4S/T8S mixer.
1.

Plug the power supply cable into the T4S/T8S Power port.

2.

Plug one end of the AC power cord into the power supply.

3.

Plug the other end of the power cord into a live AC power outlet.

4.

Switch the T4S/T8S power switch to the ON position.

Note: Power supply included with T8S is required for operation of the T8S. Power supply is not included with
the T4S and is not required for operation of the T4S.
Figure 11. Connecting T4S to power supply

14 - English

System Setup

Connecting the T4S/T8S to Your Computer
The T4S/T8S provides a USB port for connecting it to a computer. This allows you to download performance
scenes to a computer or install system updates. Visit www.Bose.com/livesound for details on updating your
system.
When connected to a computer, you also can use the T4S/T8S as a general-purpose USB audio device for
recording/playback.
Note: The T4S/T8S operates at 48 kHz/24-bit. When using the T4S/T8S with recording software, you may
need to configure the software settings for 48 kHz/24-bit operation.
Note: Connecting the T4S/T8S to your computer requires a USB cable (Type A to Type B, not supplied).
1.

Connect the mixer to a power source (ToneMatch® power supply for T4S/T8S or an L1 Model 1S/II for T4S only).

2.

Plug one end of the USB cable into the mixer's USB 2.0 Type-B port (Figure 12).

3.

Plug the other end of the USB cable into a USB port on your computer.

4.

Turn on the mixer.

Figure 12. T4S-to-USB connection
ToneMatch port – To an L1 Model 1S/II
system or an ToneMatch power supply

Power switch
USB cable
(Type A to Type B)

To computer
USB port

Connecting a Flash Drive to the T4S/T8S
Plug in a USB 2.0/3.0 flash drive loaded with WAV/MP3 files into the USB 2.0 Type-A port to playback audio
tracks to your mixer.
Figure 13. Connecting a flash drive to the T4S

English - 15

Operation

Reading the T4S/T8S Display
The display provides you with an interface for operating the mixer. Figure 14 shows a sample of display
information and the basic operating conventions. The content of the display depends on the rotary selector
position.
Figure 14. Sample display and operating conventions

Indicates that pressing the control
toggles between parameters

Identifies the
selected channel

Ch 1

Delay

Type
Digital

Fdbk.
Mix
30%

Time
250ms

This symbol indicates
that rotating the control
changes the setting.

Identifies the function accessed by
the rotary selector
Parameter names and
their settings/values
Displays visual representation of
the value of the parameter

Rotary/pushbutton
controls

Asterisk indicates that
the loaded scene was
modified

All Channels

Scenes

*Bose Scene 01
Load

16 - English

Shared

Save

Indicates that pressing
the control activates the
function

Operation

Optimizing Input Gain and Output Volume
Getting a quality volume level from your system relies on the combined adjustments of input channel gain,
master volume, and channel volume. Do the following for each channel used.
1.

Make sure the Master volume, Trim, and channel volume controls are set to minimum.

2.

Adjust input channel Trim.
A.

If applicable, adjust the volume of your instrument/source to the desired level.

B.

Play your instrument/source at a performance level.

C.

Slowly turn the Trim control clockwise until the signal/clip indicator glows green. If the indicator
flashes red or glows steady red, turn the Trim control counterclockwise to decrease the level.

D.

Use the input level meters (page 28) in the Prefs menu to check your input levels
Input Level

Preferences

Ch 1
Ch 2
Ch 3
Ch 4
Menu

Peak level indicator

Input level indicator
Reset

Aux In

CAUTION: If you are using a device that requires phantom power (+48V), such as a condenser
microphone, depress the Phantom power switch before adjusting the Trim control.
Note: The input level meter in the Prefs menu can be helpful when adjusting the input Trim level (see
page 28).
3.

Set the Master volume control at the 12 o’clock position.

4.

Slowly turn the channel volume control clockwise until the volume reaches the desired level.

English - 17

Operation

Using the Master Volume Control
The Master volume control adjusts the overall output level of the T4S/T8S ToneMatch® output and analog
Master output. During normal operation, it is recommended to keep the Master control set at the 12 o’clock
position. Once you have set volume levels for all channels, you can adjust the Master volume up or down from
this position.

Muting a Channel
The Mute buttons silence the audio for the respective channel.
• To mute a channel, press the Mute button once. The Mute button glows white to indicate that the channel is
muted. “CH MUTE” will appear on the display for the respective channel.
Ch 1

ToneMatch

Utility
CH MUTE

Flat
Preset

Category

• Press the Mute button again to unmute the channel. The Mute button dims to indicate that the channel is not
muted.

Muting Channel Effects
The FX Mute buttons mute only the Mod, Delay, and Reverb effects on the respective channel. Muting effects
does not bypass ToneMatch presets, zEQ, Para EQ, and Comp/Gate settings.
• To mute effects on a channel, press the FX Mute button once. The FX Mute button glows white to indicate
that the channel effects are muted. “FX MUTE” will appear on the display for the respective channel.
Ch 1

ToneMatch

Utility
FX MUTE
Category

Flat
Preset

• Press the FX Mute button again to unmute the channel effects. The FX Mute button dims to indicate that the
channel effects are not muted.

18 - English

Operation

Using the Rotary Selector
The rotary selector provides access to the functions of the ToneMatch® mixer output. Figure 15 provides a
summary of the nine channel-related functions and the three global functions. The following pages describe
how to adjust each function.
Figure 15. Rotary selector

e

r

w

t

q

y

d

u

s

i
o

a
Channel Functions
q Pan/Aux – Provides access to pan, aux ins, and aux outs.

w Tuner – Provides tuning information for an instrument playing into the selected channel.
e ToneMatch – Provides access to proprietary ToneMatch presets designed for specific instruments and
microphones.
r zEQ – As part of the selected ToneMatch preset, zEQ provides controls to adjust low/mid/high frequencies
that are within the range of your instrument or microphone.
t Para EQ – Provides parametric EQ controls per channel.
y Comp/Gate – Provides access gate, compression, limiter, de-esser, and kick drum presets with adjustable
parameters.
u Mod – Provides access to several modulation effects such as chorus, flanger, phaser, and tremolo.
i Delay – Provides access to three types of delays and tap-tempo delay.
o Reverb – Applies reverb to a selected channel and can be sent to mains or aux.

Global Functions
a Reverb Type – Applies a selected type of reverb to all master output channels or aux sends.
s Prefs – Allows access to several system utilities.
d Scenes – Allows you to save and load performance scenes (a snapshot of the complete state of the unit).

English - 19

Operation

Editing the Sound of a Channel
The CH Edit functions allow access to settings that affect selected channels. The CH Edit functions are Pan/
Aux, Tuner, ToneMatch®, zEQ, Para EQ, Comp/Gate, Mod, Delay, and Reverb.
To edit a channel:
1.

Press the CH Edit 1, 2, 3, 4, (T4S and T8S) 5, 6, 7, or 8 (T8S only) button. The selected channel will be
viewable in the upper-left corner of the display.

2.

Select one of the CH Edit functions using the rotary selector.

3.

Adjust the settings for that function using the following instructions.

Note: You can only edit one channel at a time. Pressing a CH Edit button enables editing for the selected
channel only.

Using the Pan/Aux Functions
Use the Pan/Aux function to route audio to either the master out L or R, control aux in, or aux send.
Using Pan
Use the Pan control to send each channel to its separate space in a stereo mix.
Ch 1

Menu
Pan

Pan

Pan

1.

Press or rotate the left editor control and select Pan from the menu.

2.

Rotate the Pan control to adjust the line output from L to R.

Aux Input 5/6 (9/10)
Use Aux Input 5/6 (9/10) to input a line-level stereo source, such as a mobile device.
1.

Press or rotate the left control and select Aux In 5/6 from the menu.

2.

Rotate the 5 Lvl or 6 Lvl control to adjust the signal level of either channel 5 or channel 6.

3.

Press the 5 Lvl to switch to 5 Pan; press the 6 Lvl control to switch to 6 Pan. Rotate the Pan control to
adjust the pan from L to R.
Ch 1

Menu
Aux In

20 - English

Aux Input 5/6
5 Lvl
5 Pan

6 Pan
6 Lvl
50%

Operation
Routing Input Signals to the Aux Outputs
The Aux function allows you to route signals to two Aux outputs (T4S only) or four Aux outputs (T8S only)
for various signal processing, recording, and sound reinforcement applications. The signal level is adjustable
for each of the available Aux outputs:
Note: To mute the Aux output, press the Level control. Press it again to unmute.
Aux 1 Output

Ch 1

Menu
Aux 1

Level
50%

Tap
Pre

1.

Press or rotate the Menu control and select an Aux Send.

2.

Rotate the Level control to adjust the signal level of the selected channel.

3.

Rotate the Tap control to scroll through the tap menu and highlight the desired tap point.

4.

A.

Dry: After Preamp – The completely dry (no processing) signal is routed directly from the preamp
stage.

B.

Pre: With EQ & Fx – The signal is routed from the preamp stage with applied processing.

C.

Post: After Fader – The signal is routed after the Channel volume control with applied processing.

Press the Select control to select the tap point, or press the Cancel control to exit with no change. The
name of the currently selected tap point appears in bold type.

Using the Tuner
An independent tuner is available on each input channel. The display indicates the note being played at the
bottom of the screen. As you tune, a pitch indicator appears on the display, showing you whether the note is
sharp or flat. Adjust the pitch of your instrument so the cursor aligns itself with the center of the screen.
Note: For silent tuning, press the Mute button for the applicable channel.
Tuner
#

Ch 1
b

A3

Pitch indicator

Use the Transpose feature to change the reference pitch up or down by two half steps. Or precisely dial in
your tuning using the reference pitch.

English - 21

Operation
Selecting a ToneMatch® Preset
The ToneMatch function allows you to select a ToneMatch preset for your instrument or microphone.
This proprietary technology optimizes system equalization to preserve the natural sound of your specific
instrument or microphone. They are organized into categories and independently selected for each channel.
1.

Rotate the Category control to access the list of categories and highlight your choice.
Ch 1

ToneMatch

Utility

Utility
Vocal Mics
Electric Guitars
Acoustic Guitars

Flat
Category

Preset

Select

Rotate

Cancel

Press

2.

Press the Select control to select your choice, or press the Cancel control to exit the list with no change.

3.

If you pressed Select, rotate the Preset control to access the list of presets and highlight your choice.

4.

Press the Select control to select your choice, or press the Cancel control to exit the list with no change.
Ch 1

ToneMatch

Vocal Mics
Handheld Mics
Category

Adjusting zEQ

Preset

Ch 1

Cancel

Rotate

ToneMatch

Vocal Mics

Handheld Mics
Headworn Mics
High Gain: Bright
High Gain: Normal

Headworn Mics
Select

Category

Preset

Press

The zEQ function is part of the ToneMatch preset technology. It allows you to adjust low/mid/high
frequencies that are within the range of your instrument or microphone.
To adjust zEQ, rotate the control under the corresponding frequency band.
Note: To bypass an individual frequency band, press the corresponding control. Press it again to activate.
Ch 1

Low
0.0db

22 - English

zEQ
Handheld Mics
Mid
High
0.0db
0.0db

Operation
Adjusting Para EQ
The Para EQ function provides three parametric equalizations centered on a user-specified frequency within
the range of 50 Hz to 16 kHz.
Note: To bypass the Para EQ settings, press the Select control. Press it again to activate.
1.

Press or rotate the Select control and select Para EQ band 1-3.

2.

Rotate the Level control to adjust the boost/cut level from -15 dB to +15 dB.

3.

Rotate the Freq control to adjust the center frequency from 50 Hz to 16 kHz.

4.

Press the Freq control to switch to Width. Rotate the Width control to adjust the width of the bell curve
around the center frequency from 0.20 octave to 5.00 octave.
Ch 1

Parametric EQ
B3

Select
PEQ 1

Level
-3.4dB

Width
Freq
250.0Hz

Using Compressor/Gate Functions
The Comp/Gate function provides access to gate, compression, limiter, de-esser and kick drum presets with
adjustable parameters.
Note: To bypass the Comp/Gate settings, press the Type control. Press it again to activate.
Note: Only one effect per channel.
Ch 1

Type
Gate

1.

Comp/Gate

Thresh
-80.0dB

Ramp
Speed
50%

Rotate the Type control to access the list of Comp/Gate effects and highlight your choice:
A.

Compressor 1: Light – Compressor featuring a preset low-compression ratio with variable threshold
and gain parameters. Works well as a general-purpose compressor for most instruments and
microphones that require minimal level control.

B.

Compressor 2: Medium – Compressor featuring a preset moderate compression ratio with variable
threshold and gain parameters. Works well with basses, guitars, keyboards, and vocals requiring
subtle level control.

C.

Compressor 3: Heavy – Compressor featuring a preset high compression ratio with variable threshold
and gain parameters. Works well with loud instruments (like horns and drums), as well as strong
vocals that require more aggressive level control.

D.

Limiter – Hard limiter featuring a preset ratio (∞:1) with variable threshold and gain parameters. Works
well with very loud instruments, such as drums, to prevent signal peaks from overloading the channel.
English - 23

Operation
E.

De-Esser – Side-chained compressor featuring a preset compression ratio with variable threshold and
gain parameters. Designed to reduce sibilance on vocals.

F.

Noise Gate – Noise gate with a fast preset attack time, variable threshold, and variable speed (release
time). Well-suited for eliminating unwanted noise from microphones and instruments.

G.

KickGate 1: Regular – Gate featuring a preset attack time, and variable threshold and tightness
(release time) parameters. This is a Bose® proprietary technology designed specifically for kick drums.
This robust gate provides maximum gain before feedback, making your kick drum as loud as possible
through an PA system.

H.

KickGate 2: Fast – Same as KickGate 1 but adjusted for faster tempos. Select this setting if you are
using a double bass drum pedal.

2.

Press the Select control to select your choice, or press the Cancel control to exit the list with no change.

3.

Compressor 1-3, Limiter, De-Esser: Rotate the Thresh control to adjust the input threshold (trigger) level
from –50 dB to 0 dB. Rotate the Gain control to adjust the gain from 0 dB to 30.0 dB. The gain bar above
the control shows the amount of gain reduction. This display helps in setting the threshold.
Noise Gate: Rotate the Thresh control to adjust the input threshold (trigger) level from –90 dB to –30 dB.
Rotate the Speed control to set the gate closing speed to any value from 0% (fastest) to 100% (slowest).
Rotate the Ramp control to adjust the slope of the gate from 0% (horizontal) to 100% (vertical).
KickGate 1-2: Rotate the Thresh control to adjust the input threshold (trigger) level from –20 dB to 0 dB.
Rotate the Tight control to adjust the tightness (how quickly the gate closes) from 0% (slowest) to 100%
(fastest).

Using the KickGate
The KickGate is a Bose® proprietary technology that allows you to raise the level of a kick drum channel while
eliminating the risk of feedback from the microphone. Two KickGate settings are available in the Comp/Gate
menu.
1.

Connect the appropriate type of microphone.

2.

Select an appropriate ToneMatch® preset.

3.

Adjust the channel input Trim control until the hardest kick drum hits turn the input channel LED red, then
continue to adjust the control until the LED turns green. This optimizes your channel input Trim level.

4.

Select Comp/Gate with the rotary selector.

5.

Rotate the Type control to scroll down the list, highlight KickGate 1: Regular or KickGate 2: Fast, and
press Select. Choose KickGate 2 when using a double bass drum pedal.

6.

While playing the kick drum, increase the volume to the desired performance level.

7.

Play the kick drum at the softest level you intend to use in the performance and check that you can hear it.

8.

While playing softly, increase the Thresh level until some of the kick drum hits get cut off. Then lower the
Thresh level by 3 dB.

9.

While playing the kick drum normally, rotate the Tight control counter-clockwise to reduce the tightness
and add more “boom” to the sound. Tightness can be adjusted from 0% (slowest) to 100% (fastest).

24 - English

Operation
Using Modulation Effects
The Mod function allows you to apply modulation effects.
Note: To bypass the Mod settings, press the Type control. Press it again to activate.
Ch 1

Type
Chorus1

1.

Modulator

Mix
50%

Speed
Depth
50%

Rotate the Type control to access the list of modulator types and highlight your choice:
A.

Chorus 1: Brite – Wet, shimmering chorus that works well with acoustic instruments. Includes
adjustable mix, depth, and speed parameters.

B.

Chorus 2: Warm – Similar to Chorus 1, but with a little less high frequencies. Includes adjustable mix,
depth, and speed parameters. Works well with electric guitars/basses.

C.

Chorus 3: Dark – Similar to Chorus 2, but with less high frequencies for a darker tone. Includes
adjustable mix, depth, and speed parameters. Works well with electric guitars/basses.

D.

Flanger 1: Tape – Tape-style flanger with no feedback. Includes adjustable mix, depth, and speed
parameters. Works well as an effect on electric guitars/basses.

E.

Flanger 2: Feedback – Same as Flanger 1, but with preset Feedback effect.

F.

Phaser 1: Stomp – Classic “stompbox”-style phaser. Features a preset wide sweep with variable speed
and feedback parameters. Works well as an effect on electric guitars/basses and keyboards.

G.

Phaser 2: Rack – Classic “rack”-style phaser. Features a positive mix type with variable speed and
feedback parameters. Works well as an effect on electric guitars/basses and keyboards.

H.

Phaser 3: Warm – Vintage-style phaser. Features a positive mix type with variable speed and
feedback parameters. Works well as an effect on electric guitars/basses and keyboards.

I.

Phaser 4: Brite – Phaser with no bass. Features a positive mix type with variable speed and feedback
parameters. Works well as an effect on electric guitars and keyboards.

J.

Tremolo – Vintage-style tremolo effect with variable speed and depth parameters. Works well as an
effect on guitars, keyboards, and harmonica.

2.

Press the Select control to select your choice, or press the Cancel control to exit the list with no change.

3.

Chorus 1-3, Flanger 1-2: Rotate the Mix control to adjust the desired mix of dry signal to wet signal
(modulator-processed). Rotate the Depth control to adjust how much the pitch varies from the original
input signal. Press the Depth control to access the Speed parameter. Rotate the Speed control to adjust
how quickly the pitch modulates.
Phaser 1-4: Rotate the Speed control to adjust how quickly the pitch modulates. Rotate the Fdbk. control
to adjust how much the modulation reverberates.
Tremolo: Rotate the Speed control to adjust how quickly the volume modulates. Rotate the Depth control
to adjust how much the volume varies from the original input signal.

English - 25

Operation
Adding Delays
The Delay function allows you to apply a digital-, analog-, or tape-style delay.
Note: To bypass the Delay settings, press the Type control. Press it again to activate.
Ch 1

Type
Digital

1.

Delay

Time
250ms

Fdbk.
Mix
30%

Rotate the Type control to access the list of Delay types and highlight your choice.
A.

Digital Delay – Straight digital delay effect where the repeats remain uncolored. Features adjustable
mix, time, and feedback parameters. Works well with guitars, drums, and vocals.

B.

Analog Delay – Classic analog delay effect where the repeats continuously deteriorate. Features
adjustable mix, time, and feedback parameters. Works well with guitars, drums, and vocals.

C.

Tape Delay – Vintage-style tape delay effect where the repeats deteriorate even more than Analog
Delay. Well-suited for guitars, horns, harmonica, and vocals.

2.

Press the Select control to select your choice, or press the Cancel control to exit the list with no change.

3.

Rotate the Time control to adjust the amount of the delay time in 5 ms increments. Press the Time control
to tap your desired delay tempo.

4.

Rotate the Mix control to set the desired mix of dry signal (0%) to wet signal (100%).

5.

Press the Mix control to access the Fdbk. setting. Rotate the Fdbk. control to adjust the amount of delay
feedback.

Adding Reverb
The Reverb function applies a user-adjustable amount of reverb to the selected channel. To select the type of
reverb, see “Selecting a Reverb Type” on page 27.
Note: To mute the Reverb effects, press the Mix control. Press it again to unmute.
Ch 1

Menu
Main

Reverb

Mix
50%

Bright
50%

1.

Press or rotate the Menu control and select which output to send the reverb too.

2.

Rotate the Mix control to adjust the desired mix of dry signal (0%) to wet signal (100%).

3.

Rotate the Bright control to equalize the high frequencies of reverb applied to the selected channel.

26 - English

Operation

Using Global Functions
The Global functions allow access to settings that affect the overall operation of the mixer and all of its
channels.

Selecting a Reverb Type
The Reverb Type function allows you to select the type of reverb that is applied to all input channels. The
decay time (Time) and balance (Bal) are adjustable. Balance controls the ratio of early-to-late reflections.
Note: To mute the Reverb, press the Type control. Press it again to unmute.
All Channels

Menu
Main

Reverb Type

Type
Medium

Time
Bal.
50%

1.

Select Reverb Type with the rotary selector.

2.

Press or rotate the Menu control and select which output to send the reverb too. You can send a different
reverb type to either the Main or Aux sends.

3.

Rotate the Type control to display the list of reverbs:
A.

Plate – Creates the ambiance of a typical studio plate reverb. Features adjustable time and balance
(ratio of early/later reflections) parameters.

B.

Small – Creates the ambiance of a small-sized space. Features adjustable time and balance (ratio of
early/later reflections) parameters.

C.

Medium – Creates the ambiance of a medium-sized space. Features adjustable time and balance
(ratio of early/later reflections) parameters.

D.

Large – Creates the ambiance of a large-sized space. Features adjustable time and balance (ratio of
early/later reflections) parameters.

E.

Cavern – Creates the ambiance of an extremely large space. Features adjustable time and balance
(ratio of early/later reflections) parameters. A unique and interesting reverb effect.

4.

Rotate the Type control to scroll through the reverb list and highlight the desired reverb type.

5.

Press the Type control to select.

6.

Rotating the Time control controls the decay time of the selected reverb model from its minimum decay
time to its maximum decay time. At 0%, the decay time will be at minimum and will simulate the smallest
room size available to the currently selected reverb type. At 100%, the decay time will be at maximum
and will simulate the largest room size available to the currently selected reverb type. Each reverb type
has their own usable range of decay times that work best for the selected model type. The Reverb
Decay parameter allows you to adjust the reverb time between the specific ranges that work best for the
selected reverb model type.

7.

Press the Time control to switch to Bal. Rotate the Bal. control to adjust the early-to-late reflection ratio
(0% = all early reflections, 100% = all late reflections).

English - 27

Operation
Using the Prefs Utilities
The Prefs function allows access to several system utilities.
1.

Select Prefs with the rotary selector.

2.

Rotate the Menu control to scroll through the list and highlight the desired utility. Press the Select control
to display the utility:
• Status – Displays the effects assigned to input channels (viewable only).
Status
Ch 1
Ch 2
Ch 3
Ch 4
Menu

Preferences
Rev
Cmp Mod
Cmp Mod
Rev
Mod Dly
Rev

Cmp = Compressor/Gate
Mod = Modulation
Dly = Delay
Rev = Reverb

• Input Level – Displays input level meters with peak signal indicators for all input channels. Press the
Reset control to reset all peak signal indicators. This display is helpful in setting the channel input trim
level (see “Optimizing Input Gain and Output Volume” on page 17). Press the Aux In control to monitor
the level of the auxiliary inputs (For the T8S only, press the Ch 5-8 control to monitor the level of
Inputs 5-8).
Input Level

Preferences

Ch 1
Ch 2
Ch 3
Ch 4
Menu

Peak level indicator

Input level indicator
Reset

Aux In

• Output Level – Displays output level meters for all outputs: Main L, Main R, USB L, and USB R. Press the
Aux control to monitor the level of the auxiliary outputs.
Output Level

Preferences

Main L
Main R
USB L
USB R
Menu

28 - English

Reset

Aux

Operation
• Master Out EQ – The Master Out EQ is a 6-band graphic equalizer put on the master mix output. With
the middle control, select the frequency range you want to boost or attenuate and use the Level control
to adjust the level +/–18 dB.
Master EQ
+18
+12
+6
0
-6
-12
-18

Menu

Preferences

125Hz

Level

• USB B to PC – Allows you to send a selected source to your computer through USB left and right
output channels. The source choices are Ch1-4 (Ch5-8 for T8S only), Aux In, Master, or Aux Out 1-2
(Aux Out 3-4 for T8S only).
USB to PC
Preferences
Left : Master
Right : Master

Menu

Left

Right

1.

Rotate the Left/Right control to highlight a source.

2.

Press the Select control to select the source, or press the Cancel
control to exit with no change.

3.

Rotate Menu to return to the Prefs menu list.

• USB B from PC – Allows you to send USB left and right channels from your computer to a selected
mixer destination (None, Aux In, or Master).
USB from PC
Preferences
Left : Master
Right : Master

Menu

Left

Right

1.

Rotate the Left/Right control to highlight a destination.

2.

Press the Select control to select the source, or press the Cancel
control to exit with no change.

3.

Rotate the Menu control to return to the Prefs menu list.

• USB A-Playback – Attach a USB Type-A flash drive to play any WAV/MP3 files stored to the flash drive.
Using the menu, select the folder that contains the WAV/MP3 files; select the file you want to play and
adjust the level by rotating the Level control.
Sun Behind the Clouds.wav
Mistakes for Love.mp3
Tomorrow Is Too late.wav
Sarah.wav
Hey God Maker.mp3
Menu

Select

Level

English - 29

Operation
• Versions – Displays revision levels of DSP Firmware.
Versions

Preferences
T4S v1.0.0

Menu

• ToneMatch – Displays the list of ToneMatch preset banks stored in the T4S/T8S. Refer to
www.Bose.com/livesound for the latest preset banks.
ToneMatch
Preferences
A: Taylor Guitars
B: Audix Mics.
C: Ovation Guitars
Menu

• L1 Power Stand – When connected to an L1® Model 1S/II power stand, Connected appears on the
screen.
L1 Stand

Preferences
Connected

Menu

Loading and Saving Scenes
A scene is a snapshot of the state of the T4S/T8S ToneMatch® mixer.
• A scene remembers all ToneMatch mixer settings, and the status of the Mute, FX Mute, and CH Edit buttons.
• A scene does not remember channel trim, channel volume levels, Master volume level, headphone level or
the Phantom power switch position.
All Channels

Scenes

Singer/Songwriter
Load

30 - English

Shared

Save

Operation
The T4S/T8S includes three types of scenes:
• (5) Bose scenes: Read-only factory-preset scenes. You cannot edit and overwrite them.
• (10) User Scenes: User-definable scenes for saving and recalling all your favorite settings. You can update
these scenes by overwriting them as many times as you want.
• (1) Shared Scene: A user-definable scene for saving settings you want to share with other T4S/T8S
ToneMatch® mixer users. This scene can be uploaded to a computer using the L1® updater software available
at www.Bose.com/livesound.
To load a scene:
1.

Select Scenes with the rotary selector.

2.

Rotate the Load control to scroll through the scenes list and highlight the desired scene name. The name
of the currently loaded scene appears in bold type.

3.

Press the Select control to select the scene, or press the Cancel control to exit the list and leave the
setting unchanged.

Note: The display returns to the Scenes screen if you do not press the Select or Cancel control within
10 seconds. No change is made and the currently loaded scene appears on the screen.
4.

If you pressed Select, the question “Are you sure?” is displayed. Press the Yes control to load the scene, or
press the No control to exit and leave the scene setting unchanged.

Note: The display returns to the Scenes screen if you do not press the Yes or No control within 10 seconds. No
change is made and the currently loaded scene appears on the screen.
To save a scene:
1.

Select Scenes with the rotary selector. The currently loaded scene is displayed.
All Channels

Scenes

Singer/Songwriter
Load

2.

Shared

Save

Rotate the Save control to highlight the scene you wish to save. Press Select, or press Cancel to exit the
list.

Note: The display returns to the Scenes screen if you do not press
the Select or Cancel control within 10 seconds. No change occurs,
and the currently loaded scene appears on the screen.

My Scene 01
My Scene 02
My Scene 03
Cancel

Select

English - 31

Operation
3.

If you pressed Select, use the Rename screen to edit the scene name, or press Save to use the name as
displayed and go to Step 4.
Scenes

Rename

My
Save

S c e n e
Cursor

0 1
Select

To change the scene name before saving:
You can use the following editing options to change the scene name. After changing the name, press the Save
control and go to Step 4.
• Select and change characters: While the Rename screen is displayed, rotate the Cursor control to highlight
the character or character position you want to change. Then rotate the Select control to change the
character.
• Use the character map: While the Rename screen is displayed, rotate the Cursor control to highlight the
character you want to change. Then press the Select control to view the character map. Rotate the Select
control to move the cursor left or right. Rotate the Up/Dn control to move the cursor up or down. When the
character you want is highlighted, press Select to write that character in the selected position.
Scenes
Rename
a b c d e f g h i j k l mn o p q
r s t u v w x y z A B C D E F GH I
J K L MNO P Q R S T U VWX Y Z 0
123456789 , ; / \ ( ) |+Cancel
Up/Dn
Select

• Use clear, insert, and delete functions: While the Rename screen is displayed, rotate the Cursor control to
position the cursor. Then press the Cursor control for a menu of special editing functions. Rotate the Select
control to highlight the function you want. Then press the Select control to perform the function.
Clear Character – Removes the character highlighted by the cursor and leaves
a blank space.

Clear Character
Clear All
Clear To End
Insert
Delete
Select

Clear All – Clears the entire line of text.
Cancel

Clear to End – Clears all text to the right of the cursor including the
highlighted character.
Insert – Inserts a blank space to the left of the highlighted character.
Delete – Removes the character and space highlighted by the cursor.

32 - English

Operation
4.

When the question “Are You Sure?” is displayed, press the Yes control to save the scene, or press the No
control to exit without saving the scene.

Are You Sure?

Yes

No

Sharing a Scene
If you create a scene that you would like to share with another T4S/T8S ToneMatch® mixer user, you can
save that scene as a Shared Scene by saving it to the [To Shared Scene] slot. Using the L1® updater, you can
upload the Shared Scene to your computer and then transfer the file to the computer of another T4S/T8S
user. The other T4S/T8S user can download the scene to their T4S/T8S using the L1 updater. The L1 updater
is available at www.Bose.com/livesound.
To save a Shared Scene:
1.

Load the scene that you want to share (see “To load a scene” on page 31).

2.

Press the Save control to access the list of scenes.

3.

Rotate the Select control to scroll through the scene list and highlight [To Shared Scene]. Press Select or
press Cancel to exit the list.
My Scene 09
My Scene 10
[To Shared Scene]

Note: The display returns to the Scenes screen if you do not press the Select
or Cancel control within 10 seconds. No change occurs, and the currently
loaded scene appears on the screen.

Cancel

4.

Select

If you pressed Select, use the Rename screen to edit the scene name (see “To change the scene name
before saving” on page 32) or go to Step 5 if you want to use the existing name.
Scenes

Rename

My
Save

S c e n e
Cursor

0 7
Select

English - 33

Operation
5.

Press the Save control to store the scene as a Shared Scene.

6.

When the question “Are you sure?” is displayed, press the Yes control to save the scene, or press the No
control to exit without saving the scene as a Shared Scene.

Note: The display returns to the Scenes screen if you do not press the Yes or No control within 10 seconds. No
change occurs, and the currently loaded scene appears on the screen.
7.

Press the Shared control to confirm the scene saved as a Shared Scene.
All Channels

Scenes

Singer/Songwriter
Load

Shared

Scenes
All Channels
Current Shared Scene:
My Scene 07

Save

Back

Press

Note: The T4S/T8S provides only one storage location for a Shared Scene. Saving a scene as a Shared Scene
always overwrites the previously saved Shared Scene.
Please visit www.Bose.com/livesound for details on using the L1® updater application for downloading and
uploading scenes to and from your computer.

34 - English

Operation

Bose Scenes
The five Bose scenes are provided as examples for you to use as a starting point. After loading a Bose scene,
you can modify the settings and then save the settings as a My Scene or Shared Scene.

Factory Settings
This scene restores the mixer to the settings it had when it left the factory. Loading this scene erases any
changes you previously made to the currently loaded scene.
CH 1-4 (T4S/T8S) CH 5-8 (T8S)
Active
ToneMatch

Active screen

Utility
Flat
Bypass

zEQ

Low
0 dB

Para EQ
Comp/Gate

Mod

Delay

Reverb

Aux

Mid
0 dB

Global Settings
Preferences

High
0 dB

Status

USB to PC

Left/Right:Master

USB from PC

Left/Right:Master

Master Out

Post Master Volume

Reverb Type

Bypass

Type

Medium

Bypass

Time

50%

Chorus1

Bal

50%

Bypass
Chorus1
Bypass
Digital
Bypass
Digital
Mute
Pre: With EQ & Fx

Note: For a list of the factory settings for all effects, see “Factory Settings” on page 42.

English - 35

Operation
Singer/Songwriter
This scene is designed for a singer/songwriter playing keyboard or guitar and sometimes accompanied by an
MP3 track.
Figure 16. Example setup for Singer/Songwriter

36 - English

Pan/Aux

Reverb

Delay

Mod

Comp/
Gate

Para EQ

zEQ

ToneMatch

50%

50%

Reverb Type

Keyboards

Bypass

Digital

Bypass

Chorus3

Bypass

Comp2

Bypass

Bypass

0 dB

High

Center
50%

Pre: With EQ & Fx

Aux 1-2

Medium
50%
50%

Type
Time
Bal

Post Master Volume

Left/Right:Master
Master Out

Left/Right:Master
USB from PC

Status
USB to PC

Active screen

0 dB

Mid

Active

Medium (Global)

0 dB

Low

General Keys

Global Settings

Pre: With EQ & Fx

Aux 1-2

Preferences

Pre: With EQ & Fx

Aux 1-2

Center

Digital

Digital

Center

Bypass

Bypass

Active

Chorus1

Chorus1

Medium (Global)

Bypass

Bypass

Active

Comp2

Comp2

0 dB

High

Medium (Global)

Bypass

0 dB
Bypass

0 dB

Bypass

0 dB

Mid

Bypass

0 dB

0 dB

Low

Active
High

Active
Mid

Steel String w/
piezo

Low

Acoustic Guitar

Vocal Mics
Handheld Mics

Active

CH 3

CH 2
Active

CH 1

Keyboard

Guitar

Active

Microphone

Basses

Active

CH 4

Bass

Bypass

Digital

Bypass

Chorus1

Bypass

Comp2

Bypass

Bypass

0 dB

Mid

Active
High
0 dB

50%
Pre: With EQ & Fx

Aux 1-2

Center

Medium (Global)

0 dB

Low

Active Bass 1

Singer/Songwriter scene channel settings

50%

5 Lvl

50%

6 Lvl

Aux In

N/A

N/A

N/A

N/A

N/A

N/A

N/A

5/6

Aux In

Operation

English - 37

Operation
DJ/Playback
The DJ/Playback scene is designed for a DJ event or any audio playback need. This setup uses two
microphones and either a mobile device, mixer, or laptop computer.
Figure 17. Example setup for stereo DJ/Playback

38 - English

Pan/Aux

Reverb

Delay

Mod

Comp/
Gate

Para EQ

zEQ

ToneMatch

50%

Reverb Type

Vocal Mics

Bypass

Digital

Bypass

Chorus3

Bypass

Comp2

Bypass

Bypass

0 dB

High

Center
50%

Pre: With EQ & Fx

Aux 1-2

Medium
50%
50%

Type
Time
Bal

Post Master Volume

Left/Right:Master
Master Out

Left/Right:Master
USB from PC

Status
USB to PC

Active screen

0 dB

Mid

Active

Medium (Global)

0 dB

Low

Handheld Mics

Global Settings

Pre: With EQ & Fx

Preferences

Pre: With EQ & Fx

Aux 1-2

Right
50%

Left
Aux 1-2

Bypass
Medium (Global)

Digital

Digital
Bypass

Bypass

Bypass

0 dB

High

Medium (Global)

Bypass
Chorus1

Bypass

Limit

Limit

Chorus1

Bypass

0 dB
Bypass

0 dB

Mid

Bypass

0 dB

Low

Bypass

0 dB

0 dB

High

Active

Mid

Active
Low

DJ/Playback
Flat, zEQ Controls

DJ/Playback
Flat, zEQ Controls

Active

CH 3

CH 2
Active

CH 1

Microphone

Source 1 Right

Active

Source 1 Left

Mid

Bypass

Digital

Bypass

Chorus1

Bypass

Comp2

Bypass

Bypass

0 dB

High
0 dB

50%
Pre: With EQ & Fx

Aux 1-2

Center

Medium (Global)

0 dB

Active

Handheld Mics

Vocal Mics

Active

CH 4

Microphone

Low

DJ/Playback scene channel settings

50%

5 Lvl

50%

6 Lvl

Aux In

N/A

N/A

N/A

N/A

N/A

N/A

N/A

5/6

Aux In

Operation

English - 39

Operation
Full Band
This scene is set up for a drum kit, bass guitar, electric guitar, vocals, and MP3 player.
Figure 18. Example setup for Drums and Bass

INPUT 1

INPUT 2

SYSTEM

SIGNAL/CLIP

SIGNAL/CLIP

POWER/FAULT

VOLUME

VOLUME

LIMIT

FRONT
LED
POWER
LIMIT
OFF

SIGNAL INPUT

EQ

MIC
LINE LEVEL

FULL RANGE
WITH SUB
LINE OUTPUT
INPUT

INPUT 1

INPUT 2

SYSTEM

SIGNAL/CLIP

SIGNAL/CLIP

POWER/FAULT

VOLUME

VOLUME

LIMIT
100-240V~50/60H z
1000W

POWER

FRONT
LED

ON

POWER
LIMIT
OFF

OFF

SIGNAL INPUT

EQ

MIC
LINE LEVEL

FULL RANGE
WITH SUB
LINE OUTPUT
INPUT

SYSTEM

INPUT 1
LINE OUTPUT

100-240V~50/60H z
1000W

POWER

FRONT
LED

INPUT 2

ON

POWER
LIMIT
OFF

LINE OUTPUT

OFF

POWER/FAULT

LIMIT

SIGNAL/CLIP

LINE INPUT

LINE INPUT

SYSTEM

POLARIT Y
NORM
REV

LINE
OUTPUT EQ
THRU
HPF

INPUT 1
LINE OUTPUT

FRONT
LED

INPUT 2

POWER
LIMIT
OFF

LINE OUTPUT

POWER/FAULT

LIMIT

SIGNAL/CLIP

LINE INPUT

LINE INPUT

POLARIT Y
NORM
REV

40 - English

LINE
OUTPUT EQ
THRU
HPF

Pan/Aux

Reverb

Delay

Mod

Comp/Gate

Para EQ

zEQ

ToneMatch

50%

Dry: After Preamp

Aux 1-4

50%

Dry: After Preamp

Aux 1-4

Center

Bypass

Bypass

Center

Digital

Digital

Medium (Global)

Bypass

Bypass

0
dB

H

Medium (Global)

Bypass
Chorus1

Bypass

Chorus1

Comp2

Kick 1

Bypass

0
dB
Bypass

0
dB

M

Active

0
dB

L

Bypass

0
dB

0
dB

H

Active

M

Active

L

Percussion
General Overhead

Active

Active

Percussion

CH 2

CH 1

Kick, General

Overhead

Kick Drum

Bypass

Digital

Bypass

Chorus1

Bypass

Comp2

Bypass

Bypass

0
dB

M

Active

0
dB

H

50%

L

Bass

Basses

Active

CH 4

0
dB

H

50%

Bypass

Digital

Bypass

Chorus 1

Center

Medium
50%
50%

Type
Time
Bal

Post Master Volume

Left/Right:Master

USB from PC
Master Out

50%
Dry: After Preamp

Left/Right:Master

Status

Center
Aux 1-4

USB to PC

Active screen

50%

Dry: After Preamp

Aux 1-4

Medium (Global)

0
dB

H

50%
Dry: After Preamp

Aux 1-4

Center

Medium (Global)

Active

Bypass

Chorus 1

Bypass

Gate

Bypass

Bypass

0
dB

M

Active

Active

0
dB

L

Digital

0
dB

H

Handheld Mics

Vocal Mics

Active

CH 7

Microphone

Digital

Bypass

Chorus 1

Bypass

Bypass

Bypass

0
dB

M

Active

Active

0
dB

L

Gate

0
dB

H

Handheld Mics

Vocal Mics

Active

CH 6

Microphone

Comp2

Bypass

Bypass

0
dB

M

Active

Medium (Global)

0
dB

L

Mic'd Amp w/
SM57

Electric Guitars

Active

CH 5

Guitar

Global Settings

Dry: After Preamp

Aux 1-4

Center

Medium (Global)

Bypass

Digital

Bypass

Chorus1

Bypass

Comp2

Active

Bypass

0
dB

M

Active

Active Bass 1

0
dB

Reverb Type

Preferences

Dry: After Preamp

Aux 1-4

Center

Medium (Global)

0
dB

L

General Overhead

Percussion

Active

CH 3

Overhead

Full Band scene channel settings

Active

Digital

Bypass

Chorus 1

Bypass

Gate

Bypass

Bypass

0
dB

M

Active

0
dB

H

50%
Dry: After Preamp

Aux 1-4

Center

Medium (Global)

0
dB

L

Handheld Mics

Vocal Mics

Active

CH 8

Microphone

50%

9 Lvl

50%

10 Lvl

Aux In

N/A

N/A

N/A

N/A

N/A

N/A

N/A

9/10

Aux In

Operation

English - 41

Factory Settings

Factory Settings
This section describes the settings in the T4S/T8S mixer when it left the factory. To restore your
T4S/T8S at any time to these factory settings, load the Bose Factory Settings scene.
Comp/Gate Factory Settings

Delay Factory Settings

Type

Thresh

Gain

Type

Mix

Time

Feedback

Compressor 1: Light

–16.0 dB

3.0 dB

Digital

30%

150 ms

30%

Compressor 2: Medium

–16.0 dB

5.0 dB

Analog

30%

275 ms

20%

Compressor 3: Heavy

–16.0 dB

8.0 dB

Tape

30%

350 ms

30%

Limiter

–10.0 dB

0 dB

De-Esser

–10.0 dB

0 dB

Thresh
Noise Gate

KickGate1: Regular
KickGate2: Fast

Reverb Type Factory Settings

Speed

–70.0 dB

50%

Thresh

Tight

–20.0 dB

100%

–20.0 dB

100%

Modulator Factory Settings
Type

Thresh

Gain

Speed

Chorus 1: Brite

50%

50%

0.50 Hz

Chorus 2: Warm

70%

100%

0.15 Hz

Chorus 3: Dark

25%

25%

3.0 Hz

Flanger 1: Tape

50%

50%

1.00 Hz

Flanger 2: Feedback

50%

100%

2.00 Hz

Speed

Feedback

Phaser 1: Stomp

0.50 Hz

0%

Phaser 1: Rack

0.50 Hz

–75%

Phaser 1: Warm

1.00 Hz

–26%

Phaser 1: Bright

0.50 Hz

–76%

Speed

Depth

5.00 Hz

50%

Tremolo

42 - English

Type

Bal.

Time

Time Range

Plate

50%

20%

0-4.6 s

Small

50%

15%

0-0.8 s

Medium

50%

25%

0-1.9 s

Large

50%

50%

0-3.5 s

Cavern

50%

100%

0-7.0 s

Care and Maintenance

Troubleshooting
If you experience problems while using this product, try the following solutions. If you still cannot solve the
problem, seek online help at www.Bose.com/livesound. If you cannot find answers to your questions there,
please call the Bose Product and Technical Support Team directly at (877) 335-2673.
Problem

What to do

T4S/T8S is plugged
in, power switch is on,
but no power.

• Make sure you have power at the AC outlet. Try operating a lamp or other
equipment from the same AC outlet or test the outlet using an AC outlet tester.
If using the T4S with an L1® Model II or 1S system:
• Make sure the ToneMatch® cable is properly connected to the mixer and the L1
power stand.
• Verify that the power cord plug is fully inserted into the power stand and the AC
(mains) outlet.
• Make sure the L1 power stand is turned on and the power LED is blue.

T4S/T8S is on, but
there is no sound.

• Make sure the Master volume control is turned up.
• Verify that the input channel(s) you want to hear is not muted.
• Check that the Volume control is turned up for the channel you want to hear.
• Make sure the appropriate input channel Trim control has been turned up enough
so that the LED is green (indicating that there is a strong input signal).
• Check the Prefs (Preference) Input and Output level meters to confirm that there
is a signal at both the input and output stages.
• Make sure volume control is turned up on your input source (instrument).
• Connect your input source (instrument) to the mixer using a different cable.
• Plug your input source (instrument) directly into the L1 power stand or a different
amplifier to make sure the source is working.
• Turn the mixer off and wait 30 seconds. Then turn mixer on again.
If using the T4S with an L1 Model II or 1S system:
• Turn off the power stand, re-seat the ToneMatch cable plug in the ToneMatch
port, and turn on the power stand again.
• If available, try a different ToneMatch cable. If another ToneMatch cable is not
available, try a standard ethernet cable.
• Connect the T4S/T8S Master output to the Analog Input on the power stand
using a ¼" phone plug cable. Turn up the power stand Trim control, and verify
that you hear sound.
• Make sure power LED on power stand is blue. If LED is red, please call the Bose
Product and Technical Support Team directly at (877) 335-2673.

English - 43

Care and Maintenance
Problem

What to do

Poor quality sound from a
microphone or instrument
connected to the T4S/T8S.

• Make sure there is no unwanted zEQ or Para EQ equalization applied.
• Verify that you have selected an appropriate ToneMatch® mixer preset
for your microphone/instrument. If you do not want to use a ToneMatch
mixer preset, make sure ToneMatch is set to Flat.
• Make sure there are no unwanted effects (Comp/Gate, Mod, Delay,
Reverb) on your input channel. Check the Status in the Prefs menu for
any currently active effects.
• Check that the T4S/T8S input Trim is adjusted properly for your
microphone/instrument. The signal LED should be green; if the LED is
red, lower the Trim level until it is green.
• Try a different microphone or instrument cable.
• Check the cable connecting your microphone or instrument to the T4S/
T8S mixer. Make sure the cable plug is fully inserted into the microphone/
instrument output connector and the T4S/T8S input connector.
• Check the settings (if any) on your microphone or instrument.
• Check the batteries (if any) in your instrument or microphone.

Not hearing any effects.

• Check that you pressed the correct CH Edit button.
• Make sure the FX Mute button is not pressed for the channel in question.

T4S/T8S not responding to
control knobs.

• Turn off the mixer. Wait 30 seconds and turn mixer on again.

Master volume control has no
effect.

• Verify that the Master output is configured for Post Master Volume
operation in the Prefs menu under Master Out.

With nothing plugged into the
T4S/T8S input connectors, a
slight hum or buzz is heard
from the L1® system.

• Plug the T4S/T8S and the L1 power stand into the same AC (mains) outlet.
• Using an AC outlet tester, test the AC outlet that the T4S/T8S and/or the
L1 power stand is plugged into for reversed or open (hot, neutral, and/or
ground) contacts.
• If using an extension cord, make sure that the cord is also tested as
above.

Too much (or not enough)
bass, mid-range, or high
frequencies.

• Make sure there is no unwanted zEQ or Para EQ equalization applied.

Poor-sounding playback of a
stereo recording using a CD
player, MP3 player, or other
such device.

• Connect the left channel of the device to Aux input 5 and the right
channel to Aux input 6 (or 9/10 for T8S). Aux inputs 5/6 (or 9/10) are
designed for line-level inputs.

• Verify that you have selected an appropriate ToneMatch mixer preset
for your microphone/instrument. If you do not want to use a ToneMatch
mixer preset, make sure ToneMatch is set to Flat in the Utility category.

• Disable any extended bass or EQ features when using CD or mobile
device.
• If you are using recording software on a computer, check the software
requirements. You may need to configure the software settings for
48 kHz/24-bit operation.

44 - English

Care and Maintenance
Problem

What to do

Microphone is encountering
feedback.

• Orient the microphone so that it is not pointing directly at its respective
loudspeaker.
• Try a different microphone.
• Try a different position for the L1 system and/or vocalist on stage.
• Increase the distance from the L1 system to the microphone.
• Reduce the HIGH frequencies by adjusting the zEQ on the microphone
channel.
• Try notching out a particular frequency that could be causing the
feedback by adjusting the Para EQ on the microphone channel.
• Temporarily bypass any audio effects used (Mod, Delay, Reverb) to see if
they might be contributing to the feed-back problem.

Aux output does not sound
right.

• Check if the Aux output is configured for the desired tap point for each
input channel. Refer to “Routing Input Signals to the Aux Output” on
page 21.
• Verify that each input assigns the desired signal level to the Aux output.

Unable to send T4S/T8S
audio to a computer through
a USB connection.

• Check that the USB cable is properly connected to the mixer and
computer.
• Try a different USB cable.
• Make sure the mixer is turned on.
• Verify that the desired mixer input channels are assigned to the left and
right USB output channels. See “USB to PC” in the Prefs menu.
• Make sure that the Trim level of the respective input channel is turned up
enough so that the green LED is on, indicating that there is a strong input
signal.
• Check the Input and Output level meters under the Prefs menu to confirm
that there is a signal at both the input and output stages.
• Verify that your computer USB input is working by connecting another
USB-compatible audio device.
• If you are using recording software on a computer, check the software
requirements. You may need to configure the software settings for
48 kHz/24-bit operation.

T4S/T8S is not responding to
flash drive.

• To determine if there is an issue with your flash drive, connect a different
brand flash drive

English - 45

Care and Maintenance
Problem

What to do

Unable to send audio from a
computer to the T4S/T8S via
USB connection.

• Check that the USB cable is properly connected to the mixer and
computer.
• Try a different USB cable.
• Make sure mixer is turned on.
• Verify the computer is playing and that the audio setting is not disabled
in your computer.
• Check that the USB signal is assigned to the desired mixer inputs. See
“PC to USB” in the Prefs menu.
• Verify that the mixer input channels assigned to the incoming USB signal
are not muted and their volume controls are turned up.
• Make sure that the appropriate input channel Trim control is turned up
enough so that the green LED is on (indicating that there is a strong
input signal).
• Check the Input and Output level meters under the Prefs menu to confirm
that there is a signal at both the input and output stages.
• Verify that your computer USB output is working by connecting another
USB-compatible audio device.
• If you are using recording software on a computer, check the software
requirements. You may need to configure the software settings for
48 kHz/24-bit operation.

Cleaning
• You may clean the product enclosure using only a soft dry cloth.
• Do not use any solvents, chemicals, or cleaning solutions containing alcohol, ammonia, or abrasives.
• Do not use any sprays near the product or allow liquids to spill into any openings.

Technical Information
Mechanical
T4S

T8S

Dimensions (L x W x H)

8.4" x 7.25" x 3.25"
(214 mm x 184 mm x 83 mm)

8.4" x 12.25" x 3.25"
(214 mm x 311 mm x 83 mm)

Weight

2.1 lbs (1.0 kg)

4.1 lbs (1.9 kg)

Electrical
A/D and D/A Conversion

24 bits

Sampling Rate

48 kHz

USB

2.0 or higher, Type-A to Type-B cable, Type-A port and Type-B port

PC Requirements

Microsoft Windows 7 or higher; Mac OS 10.5 or higher

46 - English

Additional Information
Contact Information
Visit us on the web at www.Bose.com.

Americas

(USA, Canada, Mexico, Central America, South
America)
Bose Corporation
Framingham, MA 01701 USA
Corporate Center: 508-879-7330
Americas Professional Systems,
Technical Support: 800-994-2673

Australia

Bose Pty Limited
Unit 3/2 Holker Street
Newington NSW Australia
61 2 8737 9999

Belgium

Bose N.V. / S.A
Limesweg 2, 03700
Tongeren, Belgium
012-390800

China

Bose Electronics (Shanghai) Co Ltd
25F, L’Avenue
99 Xianxia Road
Shanghai, P.R.C. 200051 China
86 21 6010 3800

France

Bose S.A.S
26-28 avenue de Winchester
78100 St. Germain en Laye, France
01-30-61-63-63

Germany

Bose GmbH
Max-Planck Strasse 36D 61381
Friedrichsdorf, Deutschland
06172-7104-0

Hong Kong

Bose Limited
Suites 2101-2105, Tower One, Times Square
1 Matheson Street, Causeway Bay, Hong Kong
852 2123 9000

India

Bose Corporation India Private Limited
Salcon Aurum, 3rd Floor
Plot No. 4, Jasola District Centre
New Delhi – 110025, India
91 11 43080200

Importer Information
European Union
Bose Products B.V., Gorslaan 60, 1441 RG
Purmerend, The Netherlands
China
Bose Electronics (Shanghai) Company
Limited, Part C, Plan 9, No. 353 North Riying
Road, China (Shanghai) Pilot Free Trade Zone

Italy

Taiwan
Bose Taiwan Branch, 9F-A1, No. 10, Section 3,
Minsheng East Road, Taipei City 104, Taiwan
Tel: +886-2-2514 7676

Japan

Mexico
Bose de México, S. de R.L. de C.V., Paseo de
las Palmas 405-204, Lomas de Chapultepec,
11000 México, D.F.
Tel: +5255 (5202) 3545

Bose SpA
Centro Leoni A – Via G. Spadolini
5 20122 Milano, Italy
39-02-36704500
Bose Kabushiki Kaisha
Sumitomo Fudosan Shibuya Garden Tower 5F
16-17, Nanpeidai-cho
Shibuya-Ku, Tokyo, 150-0036, Japan
TEL 81-3-5489-0955
www.bose.co.jp

See website for other countries

The Netherlands

Bose BV
Nijverheidstraat 8 1135 GE
Edam, Nederland
0299-390139

United Kingdom

Bose Ltd
1 Ambley Green, Gillingham Business Park
KENT ME8 0NJ
Gillingham, England
0870-741-4500

Additional Information
Refer to the owner’s guide (online at www.Bose.com) for more information about your product (including
accessories and replacement parts). To request a printed copy, use the phone numbers provided.
Limited Warranty
Your product is covered by a limited warranty. Visit www.pro.Bose.com for warranty details.
The warranty information provided with this product does not apply in Australia and New Zealand. See our
website at www.bose.com/au/warranty or www.bose.com/nz/warranty for details of the Australian and New
Zealand warranty.
Date of Manufacture
The eighth digit in the serial number indicates the year of manufacture; “6” is 2006 or 2016.

English - 47

©2017 Bose Corporation, All rights reserved.
Framingham, MA 01701-9168 USA
www.Bose.com
All trademarks are the property of their respective owners
AM801203 Rev. 00
November 2017
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