Appendix B - General Amplifier Specifications (Model 4801)
| 1kHz, <0.025% THD+N | ||
8Ω Stereo Power | 400W | 300W | |
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4Ω Stereo Power | 575W | 480W | |
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8Ω Bridged Mono Power | 1150W | 960W | |
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2Ω Stereo Power | 700W | 600W | |
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4Ω Bridged Mono Power | 1300W | 1200W | |
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Max RMS Output Voltage (each channel) | 60V |
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Peak Output Voltage (each channel) | 85V |
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Frequency Response (+0 / | 20 |
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Power Bandwidth (rated power at 4Ω , 1% THD+N) | 20 |
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Protection Circuitry | Clip Limit, IGM, AutoRamp, High Temp, | ||
| DC voltage, | ||
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THD+N (rated power at 4Ω , 1kHz) | <0.025% |
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SMPTE IMD (rated power at 8Ω , 60Hz & 7kHz) | <0.1% |
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Damping Factor | 400:1 |
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Input CMRR (1kHz) | >60 dB |
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Input Sensitivity (rated power at 4Ω ) | 1.1V RMS |
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Voltage Gain | X40 |
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Input Impedance (balanced) | >20kΩ |
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Hum and Noise (“A” weighted, full power, 4Ω ) | > |
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Crosstalk (“A” weighted, full power, 4Ω ) | > |
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Class | H |
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Input Connectors (per channel) | Female XLR (pin 3+), Octal Socket | ||
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Output Connectors (per channel) |
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Filter Storage | 80,000 µF |
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Standard Power Supply (120V) | 120V, 60Hz |
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Idle Current Draw (120V) | 1.1A |
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1/8 Power Curr. Draw (typical music, 120V/4Ω ) | 5.6A |
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1/3 Power Curr. Draw (continuous music, 120V/4Ω ) | 11.46 |
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Max Curr. Draw (circuit breaker rating, 120V/4Ω ) | 18.0A |
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Thermal Emissions (1/8 Power, 4Ω ) | 1803 BTU/hr |
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Thermal Emissions (1/3 Power, 4Ω ) | 3385 BTU/hr |
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Cooling | Rear to front tunnel heatsink, variable speed DC fan |
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Controls | Front panel: 2 attenuators, circuit breaker/power switch; | ||
| Rear panel: mode switch, signal ground lift jumper. | ||
LED Indicators (per channel) | Clip/Limit, Signal, Temp/DC, Active | ||
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Construction | 16 ga. single piece steel chassis, .187" (5mm) alum. front panel | ||
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Dimensions (Height x Width x Depth) | 3.5"x19"x15" (16" to rear ears) |
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| 89mm x 483mm x 381mm (406mm to rear ears) | ||
Gross Weight, Net Weight | 54.0 lbs (24.52 kg.), 49.0 lbs (22.25 kg.) | ||
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Warranty | 5 years, parts and labor† |
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†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
Crest Audio Pro Series Power Amplifiers | Appendix B |
