Crown PRO 8001 Power Amplifier

Up for auction is a used Crest Audio PRO 8001 power amplifier. It is in great condition with only a couple of scratches. Here is the manufacturer's 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® computer-controlled audio system.

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.

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 2½ impedances.
- 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

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