8001 POWER AMPLIFIER
Product Description
The Crest Audio 8001 power amplifier is a compact, extremely high-power amplifier designed to meet the most stringent needs of professional use in concert touring, high quality sound reinforcement, and professional fixed installations.
A three rack-space amplifier, the 8001 uses forced-air to cool channel heat sinks mounted in a back-to-back tunnel configuration. Stereo, parallel, and bridged mono operating modes can be chosen with a rear-panel Mode Select switch. Actively balanced female XLR input connections and 5-way output binding post connectors are provided for each channel.
The 8001 is fully compatible with the other Professional Series amplifiers, Octal Socket Accessories and the NexSys® computercontrolled audio system.
Design and Construction
The no-compromise approach in the 8001’s electrical design and mechanical construction provides the ultimate in reliability and performance. Only high-grade components are used for the modular sub-assemblies in this ultra-strong, single piece steel chassis.
®Crest Professional Series Amplifiers
are fully compatible with the NexSys 
Computer-Controlled Audio system.
8001 Features
•NexSys ready
•Toroidal power transformer
•Tunnel cooling
•105 CFM AC fan, with twin speed option
•High thermal mass heat sinks
•Balanced XLR inputs
•5-way output binding post connectors
•Stereo/Parallel/Bridged Mono mode selector switch
•Rear panel ground lift jumper
•8001 protection circuitry:
-Clip Limiting prevents speaker damage with gentle gain reduction at clip threshold.
-IGM (Instantaneous Gain Modulation) monitors connected
loads to detect conditions that may overstress output devices, allowing safe operation into nominal 2Ω imped-
ances.
-AutoRamp gradually increases gain to attenuator setting level when amplifier is turned on.
-Other protection circuitry: comprehensive thermal management, and short circuit, DC voltage, turn-on/off transient, current inrush and sub/ultrasonic input protection.
•Ultra-strong, single piece steel chassis
•Octal Accessory sockets
•Recessed, stepped attenuators
•Front panel circuit breaker/power switch
•Modular construction
•Five-year warranty
(USA, Canada, U.K. & many other countries).
P o w e r S p e c i f i c a t i o n s |
8 Ω S t e r e o |
4 Ω S t e r e o |
2 Ω S t e r e o |
8 Ω B r i d g e d |
4 Ω B r i d g e d |
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1kHz, <0.025% THD+N |
7 5 0 W |
1 2 2 5 W |
1 4 0 0 W |
2 4 5 0 W |
2 8 0 0 W † |
20Hz-20kHz, <0.1% THD+N |
7 2 0 W |
1 2 0 0 W |
1 4 0 0 W |
2 2 5 0 W |
2 8 0 0 W † |
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Figures are Watts per channel, both channels driven. †Continuous sine wave power is limited by current rating of front panel circuit breaker and IGM circuit.
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