Boss Audio Systems Eq1208 Users Manual

EQ1208 to the manual e0357041-924f-46ab-871d-46a26ae21fbf

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USER’S MANUAL
page

EQ1208
4-Band Graphic Equalizer
with Subwoofer Output

Congratulations on your
purchase of a
Equalizer.
It has been designed, engineered
and manufactured to bring you
the highest level of performance
and quality, and will afford you
years of listening pleasure.

CONTENTS

2

How an equalizer is used

3

Front panel controls and features

4

Top panel controls and features

5

Installation

5

Mounting the equalizer

6

Audio connections

7

Power connection

8

Specifications

Thank you for making
your choice for car audio
entertainment!

EQ1208 User’s Manual - page 1

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How an equalizer is used
The
EQ1208 graphic equalizer
is a high-fidelity signal processor/preamplifier that allows you to
graphically view and individually control
a number of different frequency bands
in a stereophonic system.
It is intended for use in a car audio
system which includes amplifiers in
the signal path AFTER the equalizer,
and provides Front, Rear and Subwoofer LOW LEVEL outputs via RCA connectors.

EQ1208 User’s Manual - page 2

This graphic equalizer consists of
several audio filters, each centered
at a specific frequency in the audio
range.The EQ1208 enables you to
cut or boost the output level by up
to 18dB as desired at the following
frequencies:
40Hz• 150Hz • 1k Hz • 20kHz
The EQ1208 also features a subwoofer channel with an independent
crossover control. The crossover can
be set from 30Hz to 250Hz. Any signal below the frequency setting will
be sent to the subwoofer outputs,
allowing you to optimize the sound
to suit your particular subwoofer setup. Use of the subwoofer channel is
optional.

Deutsch

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Deutsch

Front panel controls and features
1

EQ1208

2

3

4

5

1 CD/RADIO SELECTOR
This button permits you to select the
equalizer input source. The unit
features separate rear panel RCA
inputs for radio and CD/DVD players.

6

7

5 SUBWOOFER VOLUME
This control permits you to increase
or decrease the output level of the
subwoofer channel.

6 SUBWOOFER FREQUENCY
2 ILLUMINATION SELECTOR
This button permits you to select the
color of the front panel illumination.

3 MASTER VOLUME CONTROL
Use this control to adjust the overall
output volume level.

4 FADER
Use this control to balance the sound
level between front and rear speakers
as desired.

Use this knob to set the crossover
frequency for the subwoofer output
channel (i.e., it is a lowpass filter)

7 BOOST/CUT CONTROLS
Each of these controls represents a
range of frequencies surrounding a
center frequency to cover the audio
spectrum from subwoofer frequencies
to treble frequencies.
Adjust these controls to suit your taste
and listening environment. Each center
frequency can be adjusted +/- 18 dB.

EQ1208 User’s Manual - page 3

English

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Português

Français

Deutsch

Top panel controls and features

1
3

2

EQ1208

1 RADIO and CD INPUT GAIN
2

CONTROLS
These controls permit you to balance
the input gain from your input sources
independently.

PEQ20 User’s Manual - page 4

3 PHASE SHIFT SELECTOR
Select either 0º or 180º to correct for
time alignment issues in your audio
system.

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Installation

Mounting the equalizer

Before installing your new
equalizer, please become familiar with
all the information contained in this
manual.

The EQ1208 is designed to be
installed to the underside of your
vehicle dashboard or other similar
surface using the screws and brackets
provided. Install the unit securely,
according to the diagram below.

Choose a mounting location where the
unit will not distract or otherwise
interfere with the driver’s ability to
control the vehicle.

Deutsch

Vehicle dashboard

Use only the installation parts and
hardware provided with the unit to
ensure proper installation. Using other
parts can cause malfunction and
possible damage to your
equalizer.
Avoid installing the unit in a location
which is subject to high temperatures,
direct sunlight, hot air from such
sources as heaters or exhaust lines,
or where it will be subject to contact
with dust, dirt, moisture or excessive
vibration.

Angle brackets

Figure 1 Mounting the equalizer

Turning on the power
The EQ1208 has internal ON/OFF
circuitry which responds to turning ON
or OFF the head unit of your car audio
system. This requires that your head
unit have a remote turn-on lead
available on the rear panel (which most
head units have).
With this convenient remote turn-on/off
feature, you never have to worry about
turning off the power to the equalizer
when you shut off the audio system.

EQ1208 User’s Manual - page 5

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Deutsch

Audio connections
Review the diagrams on the next two pages and connect the unit as shown.

OUTPUTS

SUBWOOFER
OUTPUTS

FRONT

R

L

R

L

INPUTS

REAR

R

L

CD/DVD

RADIO

R

R

L

L

To SUBWOOFER
CHANNEL
Audio Inputs
of amplifier

To OUTPUTS
of RADIO
(head unit)

To FRONT
Audio Inputs
of AMPLIFIER

To OUTPUTS
of CD or DVD
PLAYER

To REAR
Audio Inputs
of AMPLIFIER
Figure 2 Audio input and output wiring

EQ1208 User’s Manual - page 6

English

Español

Português

Français

Power connections
Please note that this equalizer contains an internal ON/OFF switch, which is activated
when the head unit is turned on. For this reason, in order to use this equalizer, your
head unit must have a remote-turn on lead.
REMOTE

+12V

GROUND

Chassis
ground
point

FUSE

Battery

to REMOTE TURN-ON
terminal of head unit
Figure 3 Power connections

EQ1208 User’s Manual - page 7

Deutsch

Specifications

EQ1208
4-Band Graphic Equalizer with Subwoofer Output

EQ center frequencies
40Hz• 150Hz • 1kHz • 20kHz
Equalization range
+/- 18dB (boost/cut)
Frequency response
20Hz-20kHz
Subwoofer crossover freq. variable 30-250HzHz
Signal-to-Noise Ratio
105dB
EQ THD
less than 0.05%
Subwoofer channel THD less than 0.05%
Channel separation
60dB
Power supply
10-16V negative ground
Output voltage
7V
Dimensions (W x D x H)
6.8” x 4.25” x 1.1”

All specifications subject to change without notice.

EQ1208 User’s Manual - page 8



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