Crest Audio Stereo Amplifier owner manual Both Channels @ 4Ω

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