Crest Audio PRO SERIES 10004 - User Manual

Power Specifications 8Ω Stereo (x4 ch.) 4Ω Stereo (x4 ch.) 2Ω Stereo (x4 ch.) 8Ω Bridged (x2 ch.) 4Ω Bridged (x2 ch.)
1kHz, 0.02% THD+N
750W 1225W 1400W 2450W 2800W
20Hz-20kHz, 0.1% THD+N 720W 1200W 1400W 2400W 2800W
Figures are Watts per channel, all channels driven.
Product Description
The Crest Audio 10004 is a four-channel, high-power amplifier
designed to meet the most demanding needs of the sound profes-
sional. By providing 1400 watts at 2 ohms from each of the
amplifier’s four channels, this four rack-space unit offers sub-
stantial power and versatility in a compact package.
Crest Audio’s Power Density
™
engineering design philosophy
allows the 10004 to have one of the highest power-to-weight
ratios available at any price, while maintaining superior perfor-
mance. Forced-air is employed to cool channel heat sinks mount-
ed in a back-to-back tunnel configuration. Stereo, parallel, and
bridged mono modes are chosen with two rear-panel Mode Select
switches. Actively balanced XLR input connections and 5-way
output binding post connectors are provided for each channel.
The 10004 is fully compatible in design with the other Crest
Audio Professional Series amplifiers, Octal Socket Accessories,
and the NexSys
®
computer-controlled audio system.
Design and Construction
The 10004 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 10004 receives a rigorous “hot room”
burn-in before thorough final checkout on precision test equip-
ment.
The no-compromise approach in the 10004’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, 12 ga. steel single
piece chassis.
10004 Features
• Crest Audio’s legendary “overbuilt” power supply
• Toroidal power transformers
• Latest generation of high-speed, wide-bandwidth output
devices
• Tunnel cooling with back-to-front air flow
• Variable speed DC fan
• High thermal mass heat sinks
• Balanced XLR inputs
• 5-way binding post output connectors
• Stereo/Parallel/Bridged Mono mode selector switches
• Rear panel ground lift jumpers
• 10004 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 manage-
ment, and short circuit, DC voltage, turn-on/off transient,
current inrush and sub/ultrasonic input protection.
• Recessed, stepped attenuators
• Front panel circuit breaker/power switches
• Modular construction
• Full five-year warranty
(USA, Canada, U.K. & many other countries).
10004
POWER AMPLIFIER
®
Crest Professional Series
Amplifiers are fully
compatible with the NexSys
Computer-Controlled
Audio system.

Summary

Product Description and Design

Product Description Overview

Details the Crest Audio 10004 as a four-channel, high-power amplifier offering substantial power and versatility.

Design and Construction

Highlights the amplifier's USA manufacturing, premium components, modular subassemblies, and robust chassis.

Key Features and Specifications

10004 Features List

Lists key attributes like legendary power supply, toroidal transformers, tunnel cooling, protection circuitry, and modular construction.

Audio Specifications

Provides detailed power output figures for various impedance loads and channel configurations, plus frequency response.

Protection Circuitry

Details the amplifier's protective features including Clip Limit, IGM, AutoRamp, thermal, short-circuit, and DC voltage protection.

Controls and Indicators

Describes front and rear panel controls like attenuators, circuit breakers, mode switches, and LED indicators.

Physical and Electrical Details

Construction and Dimensions

Details the 12 ga. steel chassis, aluminum front panel, and overall physical dimensions and weight of the amplifier.

Power Supply and Consumption

Specifies power supply voltage, idle current, power draw at various output levels, and thermal emissions.

Connectivity and Cooling

Describes input/output connectors (XLR, binding posts) and the rear-to-front tunnel cooling system with DC fan.

Warranty and Compliance

Warranty Information

States the amplifier comes with a full five-year warranty in the USA, Canada, U.K., and other countries.

Architects & Engineers Specifications

Provides technical specifications suitable for system design and integration, including power, impedance, and cooling.

Crest Audio PRO SERIES 10004 Specifications

General

Frequency Response	20Hz - 20kHz, +0/-0.5dB
Power Output (Stereo, 8 Ohms)	1000W
Input Impedance	10 kOhms unbalanced, 20 kOhms balanced
Dimensions (W x H x D)	483mm
Connectors	XLR inputs, Speakon outputs
Protection	Thermal, short circuit, DC, overload