Appendix B - General Amplifier Specifications (Model 7301)

 

Lows @ 100Hz, <0.1% THD+N

Highs @ 1kHz, <0.05% THD+N

Both Channels @ 4Ω

940W

240W

 

 

 

Lows @ 2Ω , Highs @ 4Ω

990W

220W

 

 

 

Lows @ 4Ω , Highs @ 8Ω

940W

125W

Lows @ 8Ω , Highs @ 16Ω

670W

95W

 

 

 

Max RMS Output Voltage (each channel)

83V(Low Ch.) 49V(High Ch.)

 

 

 

 

Peak Output Voltage (each channel)

117V(Low Ch.) 69V(High Ch.)

 

Frequency Response (+0 / -0.3dB, 1W/8Ω )

20 Hz-20 kHz, -3dB @ 53kHz

 

 

 

 

Power Bandwidth (rated power at 4Ω , 1% THD+N)

20 Hz-20 kHz, +0/-0.2dB

 

Protection Circuitry

Clip Limit, IGM, AutoRamp, High Temp, short-circuit,

 

DC voltage, turn-on/off transient, sub/ultrasonic input.

 

 

THD+N (rated power at 4Ω , 1kHz)

<0.02% @ 800W (Low Ch.); 200W ( High Ch.)

Damping Factor (10-400Hz at 8Ω )

400:1

 

Input CMRR (1kHz)

>60 dB

 

Input Sensitivity (8Ω )

1.53V RMS (Low ) .79V RMS (High )

Voltage Gain

X40

 

 

 

 

Input Impedance (balanced)

>20kΩ

 

Hum and Noise (“A” weighted, full power, 4Ω )

> -100 dB

 

Crosstalk (“A” weighted, full power, 4Ω )

> -60dB

 

Class

H (Low Channel); AB (High Channel)

Input Connectors (per channel)

Female XLR (pin 3+), Octal Socket

Output Connectors (per channel)

5-way output binding posts

 

Filter Storage

80,000 µF

 

 

 

 

Standard Power Supply (USA)

120V, 60Hz

 

 

 

 

Idle Current Draw (120V)

1.2A

 

 

 

 

1/8 Power Curr. Draw (typical music, 120V/4Ω )

7.0A

 

1/3 Power Curr. Draw (continuous music, 120V/4Ω )

12.25A

 

 

 

 

Max Curr. Draw (circuit breaker rating, 120V/4Ω )

21.0A

 

Thermal Emissions (1/8 Power, 4Ω )

2300 BTU/hr

 

Thermal Emissions (1/3 Power, 4Ω )

3700 BTU/hr

 

 

 

Cooling

Rear to front tunnel heatsink, 2 variable speed DC fans

Controls

Front panel: 2 attenuators, circuit breaker/power switch;

 

Rear panel: signal ground lift jumper.

 

 

LED Indicators (per channel)

Clip/Limit, Signal, Temp/DC, Active

Construction

16 ga. steel chassis, 0.187" (5mm) aluminum front panel

 

 

 

Dimensions (Height x Width x Depth)

3.5"x19"x15" (16" to rear ears)

 

 

89mm x 483mm x 381mm (406mm to rear ears)

Gross Weight, Net Weight

57 lbs. (25.88 kg.), 52 lbs. (23.60 kg.)

 

 

 

Warranty

5 years, parts and labor†

 

USA, Canada, U.K., and many other countries. Power figures are watts per channel, both channels driven. Crest Audio reserves the right to make improvements in manufacturing or design which may affect specifications. Crest Audio specification literature is available in downloadable PDF file format; visit our website at http://www.crestaudio.com. ©1997 Crest Audio Inc. 12/15/97

Appendix B

Crest Audio Pro Series Power Amplifiers

Page 24
Image 24
Crest Audio Stereo Amplifier owner manual Both Channels @ 4Ω

Stereo Amplifier specifications

The Crest Audio Stereo Amplifier has established a notable reputation in the audio industry, particularly among professionals seeking dependable and high-performance amplification solutions. Renowned for its robustness and exceptional sound quality, this amplifier is a popular choice for both live sound applications and studio settings.

One of the standout features of the Crest Audio Stereo Amplifier is its outstanding power output, which ensures that it can drive a wide range of loudspeakers with ease. Typically available in various power ratings, these amplifiers can provide significant wattage, allowing them to handle high-demand audio situations without distortion. This makes the Crest Audio amplifier an excellent choice for large venues, theaters, and event spaces.

The design of the Crest Audio Stereo Amplifier prioritizes efficiency and performance. Utilizing high-quality components, the amplifier is constructed with a rugged chassis and offers extensive heat dissipation to ensure longevity and reliability during prolonged use. This durability is particularly crucial in professional settings where equipment is often subjected to rigorous conditions.

In terms of technology, Crest Audio amplifiers incorporate advanced circuitry that enhances audio fidelity and minimizes noise. The use of Class AB amplification technology allows for a balanced performance that delivers both output power and audio clarity. This technology enables the amplifier to produce rich, warm tones, making it particularly effective for musical genres requiring dynamic range and precision, such as classical and jazz.

Another notable characteristic of the Crest Audio Stereo Amplifier is its comprehensive protection features. These amplifiers are designed with built-in thermal, short circuit, and overload protection, ensuring that the equipment can withstand potential hazards without compromising performance. The intuitive LED indicators provide visual feedback on the status of the amplifier, allowing users to monitor operation easily.

Connectivity is another essential factor, with Crest Audio amplifiers typically featuring a variety of input and output options. This flexibility enables integration with different audio systems, whether for simple stereo setups or complex multi-channel configurations. The professional-grade speakON and binding post outputs ensure secure connections to loudspeakers, promoting optimal performance.

Overall, the Crest Audio Stereo Amplifier is a reliable, high-performance solution for any audio professional. With its powerful output, sturdy construction, advanced technology, and user-friendly features, this amplifier continues to be a top choice for delivering exceptional sound quality in various applications. Whether in a studio environment or a live concert setting, the Crest Audio Stereo Amplifier stands out as a trusted tool for achieving audio excellence.