Genelec 8130A Owner’s Manual OM8130a
User Manual: Genelec 8130A Owner’s Manual Troubleshoot Genelec 8130A |
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8130A
Operating Manual
Genelec 8130A
Digital Monitoring System
Genelec 8130A Digital Monitoring System
System
Digital interface
The Genelec 8130A Digital Monitoring
System has a 192 kHz/24 bit digital audio
interface allowing you to input digital audio
signals straight into the loudspeaker to precisely and directly monitor their audio content.
The 8130A supports all the same modes of
operation as the analog Genelec 8030A. You
can use it with a subwoofer. You can use it in
surround audio systems. You can even use
the 8130A as an analog loudspeaker.
Due to its compact size, integrated construction, excellent dispersion and precise
stereo imaging, the 8130A is ideal for near
field monitoring, mobile vans, digital audio
workstations, broadcast and TV control
rooms, surround sound systems, home studios, multimedia applications and computer
soundcards.
The digital audio interface comprises a digital audio receiver and a digital-to-analog
converter (D/A converter). The 8130A can
be used with sampling frequencies up to 192
kHz and word length up to 24 bit. The D/A
converter has high resilience to clock jitter
and excellent linearity.
Integrated construction
The 8130 has three XLR connectors on the
back panel (see figure 1):
As the digital interface and amplifiers are
built into the loudspeaker enclosure, the only
connections required are the mains supply
and the input signal, making the 8130A very
easy to set up and use.
Installation
After unpacking, place the loudspeakers
in their listening position, taking note of the
listening axis (see figure 3). Ensure that the
mains switches are set to "OFF" and the
volume controls turned fully counterclockwise. Power up the system only after all the
connections have been made and turn the
volume up carefully.
Signal connectors
on the 8130A
DIGITAL THRU AES/EBU
This male XLR connector delivers a buffered
bit-to-bit copy of the digital input signal. The
connector can be used for daisy-chaining
up to eight 8130A’s together in digital mode.
When the input signal is analog, there is no
output from this connector.
DIGITAL IN AES/EBU
ANALOG IN
This female XLR connector accepts digital
AES/EBU or analog line level signals. The
Genelec 8130A detects analog or digital signals and directs them to the right signal paths.
In cases where the 8130A is presented with a
dual-wire/single channel signal, detection is
again automatic and the correct digital input
mode is selected.
ANALOG OUT
This male XLR connector delivers a full-bandwidth analog version of the digital or analog
audio coming to the input connector. It can be
used for daisy-chaining up to eight 8130A’s
together in analog mode or for connecting a
Genelec 7050A subwoofer. In digital mode the
signal level from the "ANALOG OUT" connector is controlled by the volume control knob
on the front panel and the "SYSTEM LEVEL"
switches on the back panel, in analog mode by
the volume control knob only.
turning red. See chapter "Troubleshooting
for digital signals."
Troubleshooting for digital
signals
The following steps cover some typical
causes for faults in monitoring digital signals.
•
•
•
Figure 1. Connectors and controls on the back panel of the 8130A
Connecting the 8130A
Connect your audio signal cable to the
female XLR connector labelled ANALOG IN,
DIGITAL IN AES/EBU on the 8130A's back
panel. The input connector can be fed with
either AES/EBU formatted digital signal or
analog line level audio signal.
When using digital audio signal, you can
identify the right connector on your audio
source by looking for the words “Digital
Output” or “AES/EBU”. Before you connect
it to the 8130A you should make absolutely
sure that the connector is carrying AES/EBU
formatted digital audio signal.
Connect the mains cable to an earthed
mains connector, never to an unearthed connector.
Setting up for digital signals
Use the "AES/EBU CHANNEL" switches to
select which of the two channels carried by the
digital signal you want to be reproduced (A, B
or A+B). The factory default setting is A. The
8130A also accepts a dual-wire/single channel
signal, which is automatically detected. In this
mode the "AES/EBU CHANNEL" switches only
affect the output level, which is 6 dB higher
when both switches are set to "ON".
The "SYSTEM LEVEL" switches can
be used to attenuate the level by 10, 20 or
30 dB. Start with all these switches set to
"OFF" and increase the level gradually using
the volume control knob. The effect of the
switches and volume control knob is cumulative, but consistent attenuation between
several loudspeakers is easier to achieve by
turning the volume control to maximum setting and using the switches alone.
Level adjustment for
analog signals
Note that the "SYSTEM LEVEL" switches
on the back panel of the loudspeaker have
no effect on the output level when reproducing an analog signal. In this case, use the
volume control knob on the front panel to
adjust the level.
Mode indicator LED
The mode indicator LED on the front panel
of the 8130A changes colour according to
the audio signal. Green colour indicates that
the loudspeaker is switched on and operating in analog mode. When the loudspeaker
detects a valid digital signal being fed to its
input connector, the LED turns yellow. A
transmission fault is indicated by the LED
•
Make sure that your audio signal source
has been set to transmit the audio to the
AES/EBU output.
Make sure the digital interface cable is
specified for use with AES/EBU digital
audio signals and properly connected at
both ends.
Make sure the LED turns yellow as you
plug in the digital audio cable to the
8130A unit. If this is not the case, go
back to your audio source and check
once more that the correct output is
selected. If the LED stays green you do
not have a valid digital audio carrier on
the cable.
If you see the LED showing red colour,
check your cabling. Red colour indicates
a bit error in transmission.
Daisy-chaining several
8130A loudspeakers
There are three alternative configurations for
using up to eight 8130A loudspeakers connected together:
Digital master, digital slaves
In this configuration, a digital signal is fed to
the first ("master") loudspeaker of the chain
and then forwarded through the "DIGITAL
THRU AES/EBU" connector to the following "slave" loudspeakers. Each loudspeaker
in the chain operates in digital mode and
can be individually set to reproduce either
A, B or A+B channels carried by the digital
signal by using the "AES/EBU CHANNEL"
switches as described above. Possible level
settings are done to each loudspeaker individually by using the "SYSTEM LEVEL"
switches and/or the volume control knob.
Note that there is no signal from the "DIGITAL THRU AES/EBU" connector when the
input signal is analog. If you need to use
several 8130A's daisy-chained together for
analog monitoring, connect them through
the "ANALOG OUT" connector as described
below.
Loudspeaker Mounting Position
Treble
Tilt
Bass
Tilt
Switch A
Switch B
Free standing in a damped room
OFF
OFF
OFF
Free standing in a reverberant room
OFF
-2 dB
OFF
AES/EBU channel A
ON
OFF
AES/EBU channel B
OFF
Near field or console bridge
OFF
-4 dB
ON
OFF
AES/EBU channel A+B
ON
Near to a wall
OFF
ON
-6 dB
OFF
AES/EBU single channel
ON
OFF
In a corner
OFF
-6 dB
OFF
AES/EBU single channel
OFF
ON
With a 7050A subwoofer
OFF
OFF
ON
AES/EBU single channel + 6 dB
ON
ON
Table 1: Suggested tone control settings for different situations
Bass
Roll-Off
Digital Signal Input Mode
Single-wire/dual channel
Dual-wire/single channel
Table 2: Using the AES/EBU channel selection switches in various input modes.
Figure 2. Block diagram of the 8130A
Digital master, analog slaves
In this configuration, a digital signal is fed to
the first ("master") loudspeaker of the chain
and then forwarded through the "ANALOG
OUT" connector to the "slave" loudspeakers
i.e. the "master" functions in digital mode and
the "slaves" in analog mode.
Set the volume control on all "slave" loudspeakers to maximum and use the "SYSTEM
LEVEL" switches and volume control knob
on the "master" loudspeaker to adjust the
level of the whole chain. Also the AES/EBU
channel setting (A, B or A+B) on the "master"
loudspeaker affects the whole chain.
Analog master, analog slaves
In this configuration, an analog signal is fed
to the first ("master") loudspeaker of the chain
and then forwarded through the "ANALOG
OUT" connector to the "slave" loudspeakers.
Set the volume control knob on the "slave"
loudspeakers to the maximum setting and use
the volume control knob on the "master" loudspeaker to adjust the level of the whole chain.
Setting the tone controls
The frequency response of Genelec 8130A
can be adjusted to match the acoustic envi-
Channel Monitoring
Figure 3. Location of the acoustic axis
ronment by setting the tone control switches
on the rear panel. The controls are “Treble
Tilt”, “Bass Tilt” and “Bass Roll-Off”. An
acoustic measuring system is recommended
for analyzing the effects of the adjustments,
however, careful listening with suitable test
recordings can also lead to good results if a
test system is not available. Table 1 shows
some typical settings in various situations.
Figure 4 shows the effect of the controls on
the anechoic response.
The factory setting for all tone controls is
“OFF” to give a flat anechoic response.
Always start adjustment by setting all
switches to “OFF” position. Measure or listen
systematically through the different combinations of settings to find the best frequency
balance. The adjustment must always be
done individually to each loudspeaker in the
system.
Treble Tilt
Treble Tilt (switch 1) attenuates the treble
response from 5 kHz up and reaches the
attenuation of 2 dB at 15 kHz. This can be
used for smoothing down an excessively
bright-sounding system.
Bass Tilt
Bass Tilt offers three attenuation levels for the
bass response below 1 kHz, usually necessary when the loudspeakers are placed near
room boundaries. The attenuation levels are
-2 dB (switch 3 “ON”), -4 dB (switch 4 “ON”)
and -6 dB (both switches “ON”).
Bass Roll-Off
Bass Roll-Off (switch 2) activates highpass filtering at 85 Hz to complement
the low-pass filter on a Genelec 7050A/B
subwoofer. This switch should always be
set to “ON” when using 8130A’s with a
7050A/B subwoofer.
Mounting considerations
Align the loudspeakers correctly
Always place the loudspeakers so that
their acoustic axes (see figure 3) are aimed
towards the listening position. Vertical placement is preferable, as it minimises acoustical
cancellation problems around the crossover
frequency.
Maintain symmetry
Check that the loudspeakers are placed symmetrically and at an equal distance from the
listening position. If possible, place the system
so that the listening position is on the centerline
of the room and the loudspeakers are placed
at an equal distance from the centerline.
ards, the following warnings and cautions
should be observed to ensure safe operation
and to maintain the loudspeaker under safe
operating conditions:
Minimise reflections
Acoustic reflections from objects close to
the loudspeakers like desks, cabinets, computer monitors etc. can cause unwanted
colouration and disturbance of the sound
image. These can be minimised by placing
the loudspeaker clear of reflective surfaces.
For instance, putting the loudspeakers on
stands behind and above the mixing console usually gives a better result than placing them on the meter bridge.
Minimum clearances
Sufficient cooling for the amplifier and functioning of the reflex port must be ensured if
the loudspeaker is installed in a restricted
space such as a cabinet or integrated into
a wall structure. The surroundings of the
loudspeaker must always be open to the listening room with a minimum clearance of 5
centimeters (2") behind, above and on both
sides of the loudspeaker. The space adjacent
to the amplifier must either be ventilated or
sufficiently large to dissipate heat so that the
ambient temperature does not rise above 35
degrees Celsius (95°F)
• Servicing and adjustment must only
be perfor med by qualified ser vice
personnel. The loudspeaker must not be
opened.
• Do not use this product with an unearthed
mains cable as this may compromise
electrical safety.
• Do not expose the loudspeaker to water or
moisture. Do not place any objects filled
with liquid, such as vases, on the loudspeaker or near it.
• Do not place naked flame sources like
lighted candles on or near the loudspeaker.
• This loudspeaker is capable of producing
sound pressure levels in excess of 85 dB,
which may cause permanent hearing
damage.
• Free flow of air behind the loudspeaker is
necessary to maintain sufficient cooling.
Do not obstruct airflow around the loudspeaker.
• Note that the amplifier is not completely
disconnected from the AC mains service
unless the mains power cord is removed
from the amplifier or the mains outlet.
Mounting options
Compliance to FCC Rules
The 8130A offers several mounting options:
The Iso-Pod™ (Isolation Positioner/Decoupler™) vibration insulating table stand allows
tilting the loudspeaker for correct alignment of the acoustic axis. The stand can be
attached to three mounting points allowing
vertical and symmetrical horizontal positioning. Vertical installation is recommended. On
the base of the loudspeaker is a 3/8” UNC
threaded hole compatible with a standard
microphone stand. On the rear there are two
M6x10 mm threaded holes for Omnimount®
size 20.5 brackets.
This device complies with part 15 of the FCC
Rules. Operation is subject to the following
two conditions:
Maintenance
No user serviceable parts are to be found
within the loudspeaker. Any maintenance
or repair of the 8130A unit should only be
undertaken by qualified service personnel.
Safety considerations
Although the 8130A has been designed in
accordance with international safety stand-
• This device may not cause harmful
interference, and
• This device must accept any interference
received, including interference
that may cause undesired operation.
Note: This equipment has been tested and
found to comply with the limits for a Class
B digital device, pursuant to part 15 of the
FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This
equipment generates, uses and can radiate
radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to
radio communications. However, there is no
guarantee that interference will not occur in a
particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is
encouraged to try to correct the interference
by one or more of the following measures:
• Reorient or relocate the receiving
antenna.
• Increase the separation between the
equipment and receiver.
• Connect the equipment into an outlet
on a circuit different from that to which the
receiver is connected.
• Consult the dealer or an experienced
radio/TV technician for help.
Modifications not expressly approved by the
manufacturer could void the user’s authority
to operate the equipment under FCC rules.
EC Declaration of Conformity
This is to certify that Genelec Digital Monitoring System 8130A conforms to the following standards:
Safety:
EN 60065 / IEC 60065:1998 7th Edition
EMC:
EN 55013: (2001)
EN 55020: (1994), A11: (1996), A12: (1999),
A13: (1999), A14: (1999)
EN 61000-3-2 (2000)
EN 61000-3-3 (1995)
The product herewith complies with the
requirements of The Low Voltage Directive
73/23/EEC, EMC Directive 89/336/EEC and
93/68/EEC
Signed:
Ilpo Martikainen
Position: Managing Director
Date:
25-November-2004
Guarantee
Genelec 8130A is supplied with a one year
guarantee against manufacturing faults or
defects that might alter the performance of
the loudspeaker. Refer to the supplier for full
sales and guarantee terms.
8130A Operating Manual
Figure 4: The curves above show the effect of the ‘Treble Tilt’, ‘Bass Tilt’
and ‘Bass Roll-Off’ controls on the free field response.
system specifications
crossover Section
Lower cut-off frequency, –3 dB:
< 55 Hz
Upper cut-off frequency, –3 dB:
> 21 kHz
Free field frequency response of system:
58 Hz – 20 kHz (± 2.0 dB)
Maximum short term sine wave acoustic output on axis
in half space, averaged from 100 Hz to 3 kHz:
@ 1m
> 100 dB SPL
@ 0.5m
> 106 dB SPL
Maximum long term RMS acoustic output in same
conditions with IEC weighted noise (limited by driver
unit protection circuit):
@ 1m
> 97 dB SPL
Maximum peak acoustic output per pair on top of
console, @ 1 m from the listening position with music
material:
> 108 dB
Self generated noise level in free field @ 1m on axis:
< 10 dB (A-weighted)
Harmonic distortion at 85 dB SPL @ 1m on axis:
Freq:
50…100 Hz < 2 %
> 100 Hz
< 0.5 %
Drivers:
Weight:
Dimensions:
Bass
Treble
Figure 5: The curve group shows the horizontal directivity characteristics
of the 8130A in its vertical configuration measured at 1m. The lower
curve shows the system’s power response.
130 mm (5") cone
19 mm (3/4") metal dome
Both drivers are
magnetically shielded
5.6 kg (12.3 lb)
DIGITAL Section
Analog connectors:
Input connector: XLR female,
(DIGITAL IN AES/EBU ANALOG IN)
balanced 10 kOhm,
pin 1 gnd, pin 2 +, pin 3 Analog output: XLR male, (ANALOG OUT)
balanced 100 Ohm
pin 1 gnd, pin 2 +, pin 3 Input level for 100 dB SPL output at 1 m:
-6 dBu at volume control max
Volume control range:
-80 dB relative to max output
Input connector (DIGITAL IN AES/EBU ANALOG IN)
XLR female
DIGITAL THRU connector
XLR male
Word length:
Input format:
Input termination impedance:
16...24 bits
AES/EBU
110 ohms
Input sampling rate:
Dynamic range:
Output signal level is 0 dB relative to input signal level
but adjustable by volume control
Crossover frequency, Bass/Treble:
3.0 kHz
29-200 kHz (no de-emphasis)
>113 dB (A weighted,
triangular PDF dither, 24 bit
data)
Amplifier Section
Bass amplifier output power with an 8 Ohm load:
40 W
Treble Tilt control operating range:
0 to –2 dB @ 15 kHz
Treble amplifier output power with an 8 Ohm load: 40 W
Bass Roll-Off control operating in a –6 dB step @ 85 Hz
(to be used in conjunction with a 7050A subwoofer)
Long term output power is limited by driver unit
protection circuitry.
Bass Tilt control operating range in –2 dB steps:
0 to –6 dB @ 100 Hz
Amplifier system distortion at nominal output:
THD
< 0.05
SMPTE-IM
< 0.05
CCIF-IM
< 0.05
DIM 100
< 0.05
The ‘CAL’ position is with all tone controls set to ‘off’ and
the input sensitivity control to maximum (fully
clockwise).
Height
299 mm
(1113/16")
(including Iso-Pod™ table stand)
Height
285 mm
(111/4")
(without Iso-Pod™ table stand)
Width
189 mm
(77/16")
Depth
178 mm
(7")
%
%
%
%
Signal to Noise ratio, referred to full output:
Bass
> 100 dB
Treble
> 100 dB
Mains voltage:
100, 120, 220 or 230 V
according to region
Voltage operating range:
Power consumption:
±10 %
Idle
Full output
15 VA
80 VA
www.genelec.com
Genelec Document D0058R001 Copyright Genelec Oy 12.2004. All data subject to change without prior notice
International enquiries:
In the U.S. please contact:
In China please contact:
Genelec, Olvitie 5
Genelec, Inc., 7 Tech Circle
Genelec China Representative Office
FIN-74100, Iisalmi, Finland
Natick, MA 01760, USA
Soho New Town, 88 Jianguo Road
Phone +358 17 83881
Phone +1 508 652 0900
D-1504, Chaoyang District
Fax +358 17 812 267
Fax +1 508 652 0909
Beijing 100022, China
Email genelec@genelec.com
Email genelec.usa@genelec.com
Phone +86 10 8580 2180 Fax +86 10 8580 2181
Email genelec.china@genelec.com
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