Crest Audio 9001 Specyfikacje

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POWER AMPLIFIER

Product Description

The Crest Audio 9001 is a high-power amplifier designed to

meet the most stringent needs of professional use in concert tour-

ing, high quality sound reinforcement, and professional fixed

installations.

The 9001 incorporates Crest Audio's Power Density

ing design philosophy, providing users with more substantial

power and increased headroom for a given size than comparable

amplifiers.

A three rack-space amplifier, the 9001 uses forced-air to cool

channel heat sinks mounted in a back-to-back tunnel configura-

tion. Stereo, parallel, and bridged mono operating modes can be

chosen with a rear-panel Mode Select switch. Actively balanced

female XLR input connections and single-screw solderless output

connectors are provided for each channel. The 9001 is fully com-

patible with the other Crest Audio Professional Series amplifiers,

Octal Socket Accessories and the NexSys

audio system.

Design and Construction

The 9001 is built exclusively in Crest Audio's own USA manu-

facturing facility, with internal components selected for premium

quality and proven durability. Each modular subassembly is pre-

tested, and the assembled 9001 receives a rigorous "hot room"

burn-in before thorough final checkout on precision test equip-

ment.

The no-compromise approach in the 9001's electrical design and

mechanical construction provides the ultimate in reliability and

performance. Only high-grade components are used for the mod-

ular sub-assemblies in this ultra-strong, 12 gauge steel single-

piece chassis.

P o w e r S p e c i f i c a t i o n s

1kHz, 0.02% THD+N

20Hz-20kHz, 0.1% THD+N

9001 Features

• Crest Audio's legendary "overbuilt" power supply

• Toroidal power transformer

• Latest generation of high-speed, wide-bandwidth output

devices

™

engineer-

• Tunnel cooling with back-to-front air flow

• Variable speed DC fan

• High thermal mass heat sinks

• Balanced XLR inputs

• Single screw solderless output connectors

• Stereo/Parallel/Bridged Mono mode selector switch

• Rear panel ground lift jumper

• 9001 protection circuitry:

computer-controlled

• Recessed, stepped attenuators

• Front panel circuit breaker/power switch

• Modular construction

• Full five-year warranty

(USA, Canada, U.K. & many other countries).

8 Ω S t e r e o

4 Ω S t e r e o

1 2 0 0 W

2 2 0 0 W

1 1 0 0 W

2 0 5 0 W

9001

- 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 manage-

ment, and short circuit, DC voltage, turn-on/off transient,

current inrush and sub/ultrasonic input protection.

2 Ω S t e r e o

8 Ω B r i d g e d

3 3 0 0 W

3 0 0 0 W

Figures are Watts per channel, both channels driven.

Crest Professional

Series Amplifiers

are fully compatible

with the NexSys

Computer-Controlled

Audio system.

4 Ω B r i d g e d

4 4 0 0 W

6 6 0 0 W

4 1 0 0 W

6 0 0 0 W