Crest Audio 7301, 9001 Owners Manual

PROFESSIONAL

POWER AMPLIFIERS

Cip/Limit

Signal

Temp/DC

Ac ive

-6

- 0

- 5

-30 80

LOWS

- 0

- 5

-30

-80

- 0

- 5

-30

-80

- 0

- 5

-30

-80

- 0

- 5

-30

-80

Ch A

- 0

- 5

-30

-80

Ch A

- 0

- 5 30

Ch A

- 0

- 5 30

Ch A

-3

- 0

- 5

-30

0dB

-80

0dB

H GHS

Clip/Limit

Signal

Temp/DC

Active

-3

- 0

-3

- 5

-30

0dB

-80

Ch A

-6

0dB

Ch B

Clip/Limit

Signal

Temp/DC

Active

-3

- 0

-3

- 5

-30

0dB

-80

0dB

Ch B

Clip/Limt

Sgnal

TempDC

Active

-6

-3

- 0

-3

- 5

-30

0dB

-80

0dB

Ch B

Clip/Limt

Sgnal

TempDC

Active

-6

- 0

- 5

0dB

-80

0dB

Ch B

Clip Limt

Sgnal

TempDC

Active

-6

-3

- 0

- 5

0dB

Ch B

Cip/Limit

Signal

Temp/DC

Ac ive

-6

- 0

- 5

-30

0dB

-80

0dB

Ch B

Cip Limit

Signal

Temp/DC

Active

-6

- 0

- 5

-30

0dB

Ch B

7301 Professional Power Ampif er

7001 Professional Power Ampif er

6001 Professional Power Ampif er

4801 Professional Power Ampif er

4601 Professonal Power Amp i ier

3301 P ofessonal Power Ampli ier

MA7120 Pro essional Power Amplfier

MA5850 Pro essonal Power Ampl fier

Clp im t

Signal empDC Acive

-6

- 0

- 5 30

-80

- 0

- 5 30

-80

-3

- 5

0dB

Ch A

Ch B

Cip mit Signal

empDC

Acive

-6 3

0dB

Ch A

Cip imt

Sgnal

empDC

Actve

-6

- 0

- 5 30

- 0

- 5 30

- 0

- 5

-30

-3

- 5

-30

-80

0dB

Ch B

Ch A

Cip imt

Sgnal

empDC

Actve

-6

- 0

-3

- 5

-30

-80

0dB

Ch B

Ch A

Cip m t

Sgnal

empDC

Actve

-6

- 0

- 5

-80

0dB

Ch B

Ch A

10004 Professional Power Amplfier

Clp mit

Sgnal empDC Actve

-6

- 0

- 5

-30

-80

0dB

Ch D

Ch C

10001 Professional Power Amplfier

Cip im t

Signal

empDC

Active

- 0

- 5

-30

-80

Ch B

9001 Professonal Power Ampl fier

8001 Professonal Power Ampl fier

MA9130 Professional Power Amplfier

-6 3

0dB

-6 3

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. Offering 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

Clip/Limit

3301 Professional Power Amplifier

Signal

Temp/DC

Active

-6

-10

-3

-15

-30

-80

Ch A

0dB

-1

-6

-10

-3

-15

-30

-80

Ch B

0dB

-1

S EREO

PIN 3+

N A

N B

PUSH

BRIDGE

PARALLEL

CAUTION

RISK OF ELEC RIC SHOCK

DO NO OPEN

AVS : RISQUE DE CHOC ÉLEC RIQUE NE PAS OUVRIR

WARNING O REDUCE HE RISK O IRE OR E EC RIC SHOCK DO NO

EX OSE HS EQUI MEN O RAIN OR MOIS URE

A EN ON! OUR ÉVI ER E RISQUE D NCENDIE OU DE CHOC

É EC RIQUE NE ACEZ AS CE A AREI SOUS A UIE OU Á

MODEL #

HUM DI É

USA ONLY

MAXIMUM

@ 120V, 60Hz

OUTPUT POWER

IN WATTS PER

CHANNEL, Ω

INPUT CURRENT

3301 11 AMPS

OUTPUT - CLASS 2 WIR NG MAY BE USED

330W

SIGNAL

GROUND

LIFT

OUT A

BRIDGE

OUT B

Des gned & 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 Barr ier Strip. 10-Five-Way Output Binding Post Connectors.

S EREO

PIN 3+ IN A

IN B

PUSH

BRID E

PARALLEL

Model 4601 & 7001 Features

Clip/Limit

Signal

Temp/DC

Active

-6

-10

-3

-15

-30

-80

Ch A

-1

0dB

-6

-10

-15

-30

-80

0dB

Ch B

4601 Professional Power Amplifier

-3

-1

85 7

CAUTION

RISK OF ELECTRIC SHOCK

AVIS : RISQUE DE CHOC ÉLEC RIQUE NE PAS OUVRIR

WARNNG TO REDUCE THE RISK OF F RE OR ELECTR C SHOCK DO NOT

ATTENTON! POUR ÉVITER LE RISQUE D INCEND E OU DE CHOC

ÉLECTRIQUE, NE PLACEZ PAS CET APPAREIL SOUS LA PLUIE OU Á

DO NOT OPEN

EXPOSE THIS EQUIPMENT TO RAN OR MO STURE.

L'HUMIDITÉ

USA ONLY

MAXIMUM

INPUT CURRENT

MODEL #

@ 120V, 60Hz

601 18 AMPS

OUTPUT - CLASS 2 WIRING MAY BE USED

OUTPUT POWER

N WATTS PER CHANNEL, Ω

25W

SIGNAL

GROUND

LIFT

Designed & manufactured in the USA by:

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

LOWS

HIGHS

Clip/Limit

7301 Professional Power Amplifier

Signal

Temp/DC

Active

-6

-10

-3

-15

-30

-80

LOWS

-1

0dB

PUSH

-15

-30

-10

-80

-6

HIGHS

0dB

-3

-1

74 6

CAUTION

LOWS

HIGHS

RISK OF ELEC RIC SHOCK

DO NO OPEN

AVIS : RSQUE DE CHOC ÉLEC RIQUE NE PAS OUVRIR

WARNING O REDUCE HE RISK O IRE OR E EC RIC SHOCK DO NO

EX OSE HIS EQUI MEN O RAIN OR MOIS URE

A EN ION! OUR ÉVI ER E RSQUE D INCENDIE OU DE CHOC

É EC RIQUE NE ACEZ AS CE A AREI SOUS A U E OU Á

MODEL #

HUMIDI É

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 WIR NG MAY BE USED

8 9

SIGNAL

GROUND

LIF

Des gned & manufactured in the USA by:

Paramus, New Jersey 07652 USA

Crest Audio Inc.

100 Eisenhower D .

OU LOWS

OU 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 Str ip.

Crest Audio Pro Series Power Amplifiers Page 5

Model 8001 Features

PIN 3+

PARALLEL

BRIDGE

S EREO

2 3

8001 Professional Power Amplifier

Clip/Limit

Signal

Temp/DC

Active

-6

-10

-3

-15

-30

-80

IN 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 RSQUE D' NCENDIE OU DE CHOC

ÉLECTRIQUE, NE PLACEZ PAS CET APPAREIL SOUS LA PLUIE OU Á

MODEL #

DO NOT OPEN

EXPOSE THIS EQU PMENT TO RAIN OR MOISTURE.

LHUMIDITÉ

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 Barrier Strip.

Page 6 Crest Audio Pro Series Power Amplifiers

Model 9001 Features

PIN 3+

PUSH

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

Ch B

0dB

-1

8 9 104 75

PARALLEL

BRIDGE

S EREO

SIGNAL

GROUND

LIFT

MODEL 9001

MAXIMUM OU PU

POWER PER CHANNEL

8Ω 1200 WA S 4Ω 2200 WA S

DO NO OPERA E WI HOU HIS PRO EC IVE COVER

OUT A

BRIDGE +

OUT B

RISK OF ELECTRIC SHOCK

AVIS : RISQUE DE CHOC ÉLEC RIQUE NE PAS OUVRIR

WARNING TO REDUCE THE RISK OF FRE OR ELECTR C SHOCK DO NOT

EXPOSE THIS EQUIPMENT TO RAN OR MOISTURE.

ATTENTION! POUR ÉVITER LE RISQUE DINCEND E OU DE CHOC

ÉLECTR QUE, NE PLACEZ PAS CET APPAREIL SOUS LA PLUIE OU Á

Des gned & manufactured in the USA by:

CAUTION

DO NOT OPEN

L'HUMIDITÉ

NEXSYS OU PU SAMPLE

Crest Audio Inc.

100 Eisenhower Dr.

Paramus, New Jersey 07652 USA

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

10001 Professional Power Amplifier

Clip/Limit Signal Temp/DC Active

-6

-10

-3

-15

-30

-80

Ch A

-1

0dB

Clip/Limit

Temp/DC

Signal

Active

-10

-15

-30

-6

-3

-1

-80

0dB

Ch B

PUSH

IN A

BR DGE

PUSH

S EREO

IN B

PIN 3+

SIGNAL

GROUND

LIFT

AC MAINS INPUT

CH. A

OUT A

NEXSYS OU PU SAMPLE

OUT B

CAUTION

R SK OF ELEC RIC SHOCK

DO NO OPEN

AVIS : RSQUE DE CHOC ÉLEC RIQUE NE PAS OUVR R

WARNING O REDUCE HE RSK O IRE OR E EC RIC SHOCK DO NO

EX OSE HIS EQUI MEN O RAIN OR MO S URE

A EN ION! OUR ÉVI ER E R SQUE DINCENDIE OU DE CHOC

É EC RIQUE NE ACEZ AS CE A AREI SOUS A U E OU Á

Des gned & manufactured in the USA by:

Crest Aud o Inc.

100 E senhower Dr.

Paramus, New Jersey 07652 USA

AC MAINS INPUT

CH. B

HUMIDI É

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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