Crest Audio Stereo Amplifier User Manual
PROFESSIONAL
POWER AMPLIFIERS
Clip/Limit
Signal
Temp/DC
Active
-6
-10
-15
-30
-80
-10
-15
-30
-80
-10
-15
-30
-80
-10
-15
-30
-80
-10
-15
-30
-80
-10
-15
-30
-80
-10
-15
-30
-80
-10
-15
-30
-80
-6
-3
-10
-3
-15
-1
-1
-30
0dB
-80
LOWS
-6
Ch A
-6
Ch A
-6
Ch A
-6
Ch A
-6
Ch A
-6
Ch A
-6
Ch A
0dB
HIGHS
Clip/Limit
Signal
Temp/DC
Active
-6
-3
-10
-3
-15
-1
-1
-30
0dB
-80
0dB
Ch B
Clip/Limit
Signal
Temp/DC
Active
-6
-3
-10
-3
-15
-1
-1
-30
0dB
-80
0dB
Ch B
Clip/Limit
Signal
Temp/DC
Active
-6
-3
-10
-3
-15
-1
-1
-30
0dB
-80
0dB
Ch B
Clip/Limit
Signal
Temp/DC
Active
-6
-3
-10
-3
-15
-1
-1
-30
0dB
-80
0dB
Ch B
Clip/Limit
Signal
Temp/DC
Active
-6
-3
-10
-3
-15
-1
-1
-30
0dB
-80
0dB
Ch B
Clip/Limit
Signal
Temp/DC
Active
-6
-3
-10
-3
-15
-1
-1
-30
0dB
-80
0dB
Ch B
Clip/Limit
Signal
Temp/DC
Active
-6
-3
-10
-3
-15
-1
-1
-30
0dB
-80
0dB
Ch B
7301 Professional Power Amplifier
7001 Professional Power Amplifier
6001 Professional Power Amplifier
4801 Professional Power Amplifier
4601 Professional Power Amplifier
3301 Professional Power Amplifier
MA7120 Professional Power Amplifier
MA5850 Professional Power Amplifier
Clip/Limit
Signal
Temp/DC
Active
-6
-6
-10
-10
-3
-15
-30
-80
-10
-15
-30
-80
-3
-15
-1
-1
-30
-80
0dB
0dB
Ch A
Ch B
Clip/Limit
Signal
Temp/DC
Active
-6
-3
-1
0dB
Ch A
Clip/Limit
Signal
Temp/DC
Active
-6
-6
-10
-10
-15
-30
-80
-10
-15
-30
-80
-10
-15
-30
-80
-3
-3
-15
-1
-1
-30
-80
0dB
0dB
Ch B
Ch A
Clip/Limit
Signal
Temp/DC
Active
-6
-6
-10
-3
-3
-15
-1
-1
-30
-80
0dB
0dB
Ch B
Ch A
Clip/Limit
Signal
Temp/DC
Active
-6
-6
-10
-3
-3
-15
-1
-1
-30
-80
0dB
0dB
Ch B
Ch A
10004 Professional Power Amplifier
Clip/Limit
Signal
Temp/DC
Active
-6
-10
-10
-3
-15
-15
-1
-30
-30
-80
-80
0dB
Ch D
Ch C
10001 Professional Power Amplifier
Clip/Limit
Signal
Temp/DC
Active
-10
-15
-30
-80
Ch B
9001 Professional Power Amplifier
8001 Professional Power Amplifier
MA9130 Professional Power Amplifier
-6
-3
-1
0dB
-6
-3
-1
0dB
OWNER’S MANUAL
Including MA Series Amplifiers
Important Precautions
This symbol is used to alert the operator to follow important operating procedures and precautions detailed in
documentation.
This symbol is used to warn operators that uninsulated “dangerous voltages” are present within the equipment enclosure that may pose a risk
of electric shock.
1. Save the carton and packing material
even if the equipment has arrived in
good condition. Should you ever need
to ship the unit, use only the original
factory packing.
2. Read all documentation before operating your equipment. Retain all docu-
mentation for future reference.
3. Follow all instructions printed on unit
chassis for proper operation.
4. Do not spill water or other liquids
into or on the unit, or operate the unit
while standing in liquid.
5. Make sure power outlets conform to
the power requirements listed on the
back of the unit.
6. Do not use the unit if the electrical
power cord is frayed or broken. The
power supply cords should be routed so
that they are not likely to be walked on
or pinched by items placed upon or
against them, paying particular attention to cords and plugs, convenience
receptacles, and the point where they
exit from the appliance.
7. Always operate the unit with the AC
ground wire connected to the electrical system ground. Precautions should
be taken so that the means of grounding
of a piece of equipment is not defeated.
8. Mains voltage must be correct and
the same as that printed on the rear
of the unit. Damage caused by connec-
tion to improper AC voltage is not covered by any warranty.
9. Have gain controls on amplifiers
turned down during power-up to prevent speaker damage if there are high
signal levels at the inputs.
10. Power down & disconnect units from
mains voltage before making connections.
11. Never hold a power switch in the
“ON” position if it won’t stay there
itself!
12. Do not use the unit near stoves, heat
registers, radiators, or other heat
producing devices.
13. Do not block fan intake or exhaust
ports. Do not operate equipment on a
surface or in an environment which may
impede the normal flow of air around
the unit, such as a bed, rug, weathersheet, carpet, or completely enclosed
rack. If the unit is used in an extremely
dusty or smoky environment, the unit
should be periodically “blown free” of
foreign matter.
14. Do not remove the cover. Removing
the cover will expose you to potentially
dangerous voltages. There are no user
serviceable parts inside.
15. Connecting amplifier outputs to
oscilloscopes or other test equipment
while the amplifier is in bridged mode
may damage both the amplifier and test
equipment!
16. Do not drive the inputs with a signal
level greater than that required to
drive equipment to full output.
17. Do not connect the inputs / outputs of
amplifiers or consoles to any other
voltage source, such as a battery, mains
source, or power supply, regardless of
whether the amplifier or console is
turned on or off.
18. Do not run the output of any amplifi-
er channel back into another channel’s input. Do not parallel- or seriesconnect an amplifier output with any
other amplifier output. Crest Audio is
not responsible for damage to loudspeakers for any reason.
19. Do not ground any + (“hot”) termi-
nal. Never connect a + (“hot”) output
to ground or to another + (“hot”) output!
20. Non-use periods. The power cord of
equipment should be unplugged from
the outlet when left unused for a long
period of time.
21. Service Information Equipment
should be serviced by qualified service
personnel when:
A. The power supply cord or the plug
has been damaged;
B. Objects have fallen, or liquid has
been spilled into the equipment;
C. The equipment has been exposed to
rain;
D. The equipment does not appear to
operate normally, or exhibits a
marked change in performance;
E. The equipment has been dropped, or
the enclosure damaged.
22. To obtain service, contact your nearest
Crest Audio Service Center ,Distributor,
Dealer, or Crest Audio at 201.909.8700
(USA).
All Professional Series power amplifier
models are UL LISTED, except for:
10001
10004
MA5850
MA7120
MA9130
Power Amplifier Owner’s Manual
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Cooling Requirements . . . . . . . . . . . . . . . . . . . . . . . . . 3
Operating Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Crest Audio Model 7301 Power Amplifier . . . . . . . . . . 3
Crest Audio Model 10004 Power Amplifier . . . . . . . . . 3
Models 3301, 4801, 6001 Features . . . . . . . . . . . . . . . . 4
Model 4601 Features . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Model 7001 Features . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Model 7301 Features . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Model 8001 Features . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Model 9001 Features . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Model 10001 Features . . . . . . . . . . . . . . . . . . . . . . . . . 8
Model 10004 Features . . . . . . . . . . . . . . . . . . . . . . . . . 9
Connecting Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Connecting Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Crest Audio Octal Sockets . . . . . . . . . . . . . . . . . . . . . 10
®
NexSys
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Connecting Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Operation Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Bridging Precautions . . . . . . . . . . . . . . . . . . . . . . . . . 12
Switches and Controls . . . . . . . . . . . . . . . . . . . . . . . . 12
Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Protection Features . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Speaker Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Amplifier Maintenance and User Responsibility . . . . . 15
Service/Warranty Information. . . . . . . . . . . . . . . . . . . 15
Professional Series Block Diagram . . . . . . . Appendix A
General Amplifier Specifications . . . . . . . . . Appendix B
Wire Gauge Charts. . . . . . . . . . . . . . . . . . . . Appendix C
Meyer-Compatible Power Amplifiers. . . . . . Appendix D
Crest Audio Pro Series Power Amplifiers Page 1
Introduction
Congratulations...on your purchase of a Crest Audio Professional Series power amplifier. Designed for years of reliable, flawless operation under rigorous use. These power amplifiers offer the sonic superiority and unsurpassed reliability for which Crest Audio is
famous, while remaining surprisingly compact. Advanced technology and extensive protection circuitry allow operation with greater
efficiency into difficult loads and power conditions. All Professional Series amplifiers are fully compatible with Crest Audio’s Octal
Socket Accessories and the Ne xSys computer -controlled audio system. The IGM (Instantaneous Gain Modulation) circuit ensures trouble-free operation into loads as low as 2Ω. The clip limiting circuits protect drivers and ensure that sonic integrity is maintained, even
in extreme overload conditions. Crest Audio’s high-efficiency design uses tunnel-cooled heatsinks and variable speed DC fans. This
cooling topology maintains a lower overall operating temperature, resulting in longer output transistor life.
Model 9001, 10001, and 10004 power amplifiers use Crest Audio’s innovative “Power Density” circuitry.
Although the Crest Audio Professional Series amplifiers are quite simple to operate, and are housed in ultra-strong steel chassis,
improper use can be dangerous. Some of these models are very high-powered amplifiers that can put out high voltages and sizable currents at frequencies up to 30 kHz. Always use safe operating techniques with these amplifiers. FOR YOUR SAFETY, READ THE
IMPORTANT PRECAUTIONS SECTION ,AS WELL AS INPUT, OUTPUT, AND POWER CONNECTION SECTIONS.
Unpacking
Upon unpacking, inspect the amplifier. If you find any damage, notify your supplier immediately. Only the consignee may institute a
claim with the carrier for damage incurred during shipping. Be sure to save the carton and all packing materials. Should you ever need
to ship the unit back to Crest Audio, one of its offices, service centers, or the supplier, use only the original factory packing. If the shipping carton is unavailable, contact Crest to obtain a replacement.
Mounting
Professional Series power amplifiers will mount in standard 19-inch racks having sufficient depth. The 10004 & 10001 amplifiers are
four rack units high; the 9001 and 8001 models are three rack-spaces high, while the remainder are two rack-space units. All two and
three-rack space units (except for the 9001) are provided with four front panel mounting holes. The 9001, 10001, and 10004 have eight
front panel mounting holes. Crest Audio recommends using all mounting holes to secure the power amplifier in the rack; this will
ensure the safety of the equipment. Rear mounting ears are also provided on all amplifiers for additional support, which is essential in
non-permanent installations like mobile or touring sound systems, but recommended for permanent installations as well. Because of
the cables and connectors on the rear panel, a right-angle or offset screwdriver or hex key will make it easier to fasten the rear mounting ears to the rails.
Note: The 10001 and 10004 models, because of their size, require rack mounting screws stronger than standard rack screws. For customers in the USA, these are supplied with the unit. Customers in Europe and Asia should mount these models using heavy-duty metric bolts.
Page 2 Crest Audio Pro Series Power Amplifiers
Cooling Requirements
The Professional Series amplifiers use a forced-air cooling system to maintain a low, even operating temperature. Air is drawn into the
amplifier by fan(s) on the rear panel, courses through the cooling fins of the back-to-back (tunnel-configured) channel heat sinks, and
then exhausts through the front panel slots.
If either heat sink gets too hot, its sensing circuit will open the output relay, disconnecting the load from that particular channel. If the
power transformer overheats, another sensing circuit opens the output relays on all channels until it cools to a safe temperature.
It is important to have an adequate air supply at the back of the amplifier and enough space around the front of the amplifier to allow
the cooling air to escape. If the amp is rack mounted, do not use doors or covers on the front of the rack; the exhaust air must flow
without resistance. If you are using racks with closed backs, use fans on the rear rack panel to pressurize the rack and ensure an ample
air supply; also make sure that there is one (1) standard rack space opening for every three mounted power amplifiers.
The Professional Series amplifiers are supplied with cooling fan air filters. The f ilters snap in place over the fan housing. Any filter will
decrease airflow somewhat, so use the filter only when the amplifier is used in a dusty environment without a filtered air supply. The
filter element must be cleaned or replaced periodically (see the section on Amplifier Maintenance for filter service procedures).
Operating Precautions
Make sure the mains voltage is correct and is the same as that printed on the rear of the amplifier. Damage caused by connecting the
amplifier to improper AC voltage is not covered by any warranty. See the Connecting Power section for more information on voltage
requirements.
Note: Always turn off and disconnect the amplifier from mains voltage before making audio connections. Also, as an extra precaution,
have the attenuators turned down during power-up.
Although the Professional Series amplifiers have AutoRamp circuitry, which raises the signal level gradually after the output relay closes, it is always a good idea to have the gain controls turned down during power-up to prevent speaker damage if there is a high signal
level at the inputs. Whether you buy or make them, use good-quality connections, input cables, and speaker cables, along with good
soldering technique, to ensure trouble-free operation. Most intermittent problems are caused by faulty cables.
Consult the W ire Gauge Charts to determine proper gauges for dif ferent load impedances and cable lengths. Remember that cable resistance robs amplifier power in two ways: power lost directly to resistance (I2R loss), and by lowering the total load impedance. Also
make sure the mode switch is correctly set for the desired application. See Sections on Stereo, Parallel, and Bridged Mono Operation
for more information.
The Crest Audio Model 7301 Power Amplifier
The Model 7301 is specifically designed for use in bi-amplified systems; because of its dissimilar channel design, the specifications
are reported in a separate fashion. The 7301 power specifications were obtained by driving the low frequency channel with a 100 Hz
signal and the high frequency channel with a 1 kHz signal.
The Crest Audio Model 10004 Power Amplifier
The Model 10004 power amplifier is unique in that it is a high-po wer, four-channel amplifier. Of fering the advantages of Crest Audio’s
Power Density engineering design philosophy, this amplifier provides 1400 watts at 2Ω from each of the four channels. All four channels have independent LED indicators, attenuation, and input /output connections. Power switching and NexSys interfaces are configured in pairs of two. Because a channel may have to drive more than one speaker line, each channel has two pairs of output binding
posts. The red binding posts are hot (+), while the black binding posts are at signal ground (-).
Crest Audio Pro Series Power Amplifiers Page 3
Models 3301, 4801, 6001 Features
1
Clip/Limit
2
3
3301 Professional Power Amplifier
Signal
Temp/DC
Active
-6
-10
-3
-15
-30
-80
Ch A
0dB
4
-1
5
-6
-10
-3
-15
-30
-80
Ch B
0dB
-1
6
STEREO
PIN 3+
IN A
IN B
PUSH
PUSH
BRIDGE
7
PARALLEL
8
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
AVIS : RISQUE DE CHOC ÉLECTRIQUE—NE PAS OUVRIR
WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT
A
EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
ATTENTION! POUR ÉVITER LE RISQUE D'INCENDIE OU DE CHOC
ÉLECTRIQUE, NE PLACEZ PAS CET APPAREIL SOUS LA PLUIE OU Á
B
L'HUMIDITÉ
USA ONLY
MAXIMUM
INPUT CURRENT
MODEL #
@ 120V, 60Hz
3301 11 AMPS
OUTPUT - CLASS 2 WIRING MAY BE USED
OUTPUT POWER
IN WATTS PER
CHANNEL, 4Ω
330W
9
SIGNAL
GROUND
LIFT
10
OUT A
+
BRIDGE
--
OUT B
Designed & manufactured in the USA by:
Crest Audio Inc.
100 Eisenhower Dr.
Paramus, New Jersey 07652 USA
1-Channel A & B Clip/Limit, Signal, Temp/DC, and Active LEDs.2-Combination Circuit Breaker/Power Switch.3-Heated Air Exhaust Grill.
4-Fan Intake Grill & Filter 5-Channel A & B Gain Attenuators.6-Channel A & B XLR Input Connectors. 7-Mode Select Switch.
8-Crest Audio Octal Accessory Sockets.9-Signal Ground Lift Barrier Strip. 10-Five-Way Output Binding Post Connectors.
STEREO
PIN 3+
IN A
IN B
PUSH
PUSH
BRIDGE
4
PARALLEL
Model 4601 & 7001 Features
1
Clip/Limit
Signal
Temp/DC
Active
-6
-10
-3
-15
-30
-80
Ch A
-1
0dB
-6
-10
-15
-30
-80
0dB
Ch B
6
2
3
4601 Professional Power Amplifier
-3
-1
85 7
CAUTION
RISK OF ELECTRIC SHOCK
AVIS : RISQUE DE CHOC ÉLECTRIQUE—NE PAS OUVRIR
A
WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT
ATTENTION! POUR ÉVITER LE RISQUE D'INCENDIE OU DE CHOC
ÉLECTRIQUE, NE PLACEZ PAS CET APPAREIL SOUS LA PLUIE OU Á
B
DO NOT OPEN
EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
L'HUMIDITÉ
USA ONLY
MAXIMUM
INPUT CURRENT
MODEL #
@ 120V, 60Hz
4601 18 AMPS
OUTPUT - CLASS 2 WIRING MAY BE USED
OUTPUT POWER
IN WATTS PER
CHANNEL, 4Ω
425W
9
SIGNAL
GROUND
LIFT
Designed & manufactured in the USA by:
10
OUT A
+
BRIDGE
--
OUT B
Crest Audio Inc.
100 Eisenhower Dr.
Paramus, New Jersey 07652 USA
3-Heated Air Exhaust Grill. 4-Mode Select Switch. 5-Channel A & B XLR Input Connectors. 6-Channel A & B Gain Attenuators.
1-Channel A & B Clip/Limit, Signal, Temp/DC, and Active LEDs.2-Combination Circuit Breaker/Power Switch.
7-Fan Intake Grills & Filters.8-Crest Audio Octal Accessory Sockets
9-Signal Ground Lift Barrier Strip. 10-Five-Way Output Binding Post Connectors.
Page 4 Crest Audio Pro Series Power Amplifiers
Model 7301 Features
1
2
3
LOWS
HIGHS
Clip/Limit
7301 Professional Power Amplifier
Signal
Temp/DC
Active
-6
-10
-3
-15
-30
-80
LOWS
-1
0dB
5
IN
PUSH
3+
PIN
IN
PUSH
-15
-30
-10
-80
-6
HIGHS
0dB
-3
-1
74 6
CAUTION
LOWS
HIGHS
RISK OF ELECTRIC SHOCK
DO NOT OPEN
AVIS : RISQUE DE CHOC ÉLECTRIQUE—NE PAS OUVRIR
WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT
EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
ATTENTION! POUR ÉVITER LE RISQUE D'INCENDIE OU DE CHOC
ÉLECTRIQUE, NE PLACEZ PAS CET APPAREIL SOUS LA PLUIE OU Á
MODEL #
L'HUMIDITÉ
USA ONLY
MAXIMUM
@ 120V, 60Hz
OUTPUT POWER
IN WATTS PER
CHANNEL, 2Ω
CH. A 990W
{
CH. B 220W
INPUT CURRENT
7301 21 AMPS
OUTPUT - CLASS 2 WIRING MAY BE USED
8 9
SIGNAL
GROUND
LIFT
Designed & manufactured in the USA by:
Paramus, New Jersey 07652 USA
Crest Audio Inc.
100 Eisenhower Dr.
OUT LOWS
OUT HIGHS
1-Lows and Highs Channel Clip/Limit, Signal, Temp/DC, and Active LEDs.2-Combination Circuit Breaker/Power Switch.
3-Heated Air Exhaust Grill. 4-Lows and Highs Channel XLR Input Connectors. 5-Lows and Highs Channel Attenuators.
6-Fan Intake Grills & Filters.7-Crest Audio Octal Accessory Sockets.
8-Five-Way Output Binding Post Connectors.9-Signal Ground Lift Barrier Strip.
Crest Audio Pro Series Power Amplifiers Page 5
Model 8001 Features
PIN 3+
PARALLEL
BRIDGE
STEREO
1
2 3
8001 Professional Power Amplifier
Clip/Limit
Signal
Temp/DC
Active
-6
-10
-3
-15
-30
-80
IN B
A
B
IN A
PUSHPUSH
Ch A
-1
0dB
-6
-10
-3
-15
-30
-80
Ch B
-1
0dB
7 8 95 64
CAUTION
RISK OF ELECTRIC SHOCK
AVIS : RISQUE DE CHOC ÉLECTRIQUE—NE PAS OUVRIR
WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT
ATTENTION! POUR ÉVITER LE RISQUE D'INCENDIE OU DE CHOC
ÉLECTRIQUE, NE PLACEZ PAS CET APPAREIL SOUS LA PLUIE OU Á
MODEL #
DO NOT OPEN
EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
L'HUMIDITÉ
USA ONLY
MAXIMUM
INPUT CURRENT
@ 120V, 60Hz
8001 30 AMPS
OUTPUT - CLASS 1 WIRING MAY BE USED
Designed & manufactured in the USA by:
100 Eisenhower Dr.
Paramus, New Jersey 07652 USA
Crest Audio Inc.
OUTPUT POWER
IN WATTS PER
CHANNEL, 2Ω
1400W
--
OUT A
+
+
BRIDGE
--
+
OUT B
--
--
OUT A
+
+
BRIDGE
--
+
OUT B
--
SIGNAL
GROUND
LIFT
1-Front Panel Channel Clip/Limit, Signal, Temp/DC, and Active LEDs.2-Combination Circuit Breaker/Power Switch.
3-Heated Air Exhaust Grill. 4-Mode Select Switch. 5-XLR Input Connectors. 6-Crest Audio Octal Socket Accessory Connectors.
7-Channel A & B Attenuators. 8-Five-Way Output Binding Post Connectors. 9-Signal Ground Lift Barr ier Strip.
Page 6 Crest Audio Pro Series Power Amplifiers
Model 9001 Features
PIN 3+
PUSH
PUSH
1
2 3
9001 Professional Power Amplifier
Clip/Limit
Signal
Temp/DC
Active
-6
-10
-3
-15
-30
-80
IN A
IN B
Ch A
-1
0dB
-6
-10
-3
-15
-30
-80
6
Ch B
0dB
-1
8 9 104 75
A
PARALLEL
BRIDGE
STEREO
B
SIGNAL
GROUND
LIFT
MODEL 9001
MAXIMUM OUTPUT
POWER PER CHANNEL
8Ω 1200 WATTS
4Ω 2200 WATTS
DO NOT OPERATE
WITHOUT THIS
PROTECTIVE COVER
OUT A
-BRIDGE
+
OUT B
-+
+
--
RISK OF ELECTRIC SHOCK
AVIS : RISQUE DE CHOC ÉLECTRIQUE—NE PAS OUVRIR
WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT
EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
ATTENTION! POUR ÉVITER LE RISQUE D'INCENDIE OU DE CHOC
ÉLECTRIQUE, NE PLACEZ PAS CET APPAREIL SOUS LA PLUIE OU Á
Designed & manufactured in the USA by:
CAUTION
DO NOT OPEN
L'HUMIDITÉ
NEXSYS
OUTPUT
SAMPLE
Crest Audio Inc.
100 Eisenhower Dr.
Paramus, New Jersey 07652 USA
11
1-Front Panel Channel Clip/Limit, Signal, Temp/DC, and Active LEDs.2-Combination Circuit Breaker/Power Switch.
3-Heated Air Exhaust Grill. 4-XLR Input Connectors. 5-Air Intake/Fan Filter.6-Channel Attenuators.
7-Mode Select Switch 8-Crest Audio Octal Socket Accessory Connectors.
9-Signal Ground Lift Barrier Strip. 10-Single-Screw Solderless Output Connectors.11-NexSys Output Sample Connector
Crest Audio Pro Series Power Amplifiers Page 7
Model 10001 Features
1
32
2
1
10001 Professional Power Amplifier
Clip/Limit
Signal
Temp/DC
Active
-6
-10
-3
-15
-30
-80
4
Ch A
-1
0dB
5
6
7
Clip/Limit
Temp/DC
8
Signal
Active
-10
-15
-30
-6
-3
-1
-80
0dB
Ch B
5
4
9
PUSH
IN A
BRIDGE
PUSH
8
STEREO
IN B
PIN 3+
10
SIGNAL
GROUND
LIFT
AC MAINS-INPUT
CH. A
OUT A
+
11
-
NEXSYS
OUTPUT
SAMPLE
-
OUT B
+
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
AVIS : RISQUE DE CHOC ÉLECTRIQUE—NE PAS OUVRIR
WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT
EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
ATTENTION! POUR ÉVITER LE RISQUE D'INCENDIE OU DE CHOC
ÉLECTRIQUE, NE PLACEZ PAS CET APPAREIL SOUS LA PLUIE OU Á
Designed & manufactured in the USA by:
Crest Audio Inc.
100 Eisenhower Dr.
Paramus, New Jersey 07652 USA
AC MAINS-INPUT
CH. B
L'HUMIDITÉ
PARALLEL
1-Front Panel Channel Clip/Limit, Signal, Temp/DC, and Active LEDs.2-Combination Circuit Breaker/Power Switch.
3-Heated Air Exhaust Grill. 4-Single-Screw Solderless Output Connectors. 5-Channel Attenuators. 6-Air Intake/Fan Filter.
7-Crest Audio Octal Socket Accessory Connectors.8-XLR Input Connectors. 9-Signal Ground Lift Barrier Strip.
10-Mode Select Switch 11-NexSys Output Sample Connector
Page 8 Crest Audio Pro Series Power Amplifiers
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