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Crown x4000 1350 watt stereo power amp - $650 (Conesus)
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Features
Stereo/parallel/bridge-mono mode
User selectable input sensitivity - 0.775V and 1.4V
Electronically balanced RCA & XLR inputs; binding post and Speakon outputs
Efficient forced-air cooling prevents excessive thermal buildup
Electronically balanced RCA & XLR inputs; binding post and Speakon outputs
Two level controls, power switch, power LED, and six LEDs which indicate signal presence, clip and fault for each channel
Protection against shorts, no-load, on/off thumps and radio-frequency interference
Specs
X4000 Stereo 2x1350W Power Amp Specifications:
Guaranteed Minimum Power: 1350W (per channel) @ 4 ohms / 1000W (per channel) @ 8 ohms / 2700W bridge mono @ 8 ohms
Frequency Response (at 1 Watt): 20Hz - 20kHz, +0/-1dB
Total Harmonic Distortion (THD): < 0.5%, 20Hz - 20kHz
Intermodulation Distortion (IMD) 60Hz and 7kHz at 4:1, from full-rated output
to “30dB: 0.35%
Slew Rate: >10V/us
Voltage Gain: 29dB 31dB 33dB 36dB
Damping Factor (8 Ohm), 10Hz - 400Hz > 200
Signal-to-Noise Ratio: (below rated power, 20Hz to 20kHz, A-weighted): > 100dB
Crosstalk (below rated power)
At 1kHz: “75dB
At 20kHz: “59dB
Input Sensitivity for full rated power at 8 Ohm 0.775V or 1.4V
Input Impedance (nominal)
Balanced: 20 kOhm
Unbalanced: 10 kOhm
Connectors, Controls and Indicators
Input Connectors: One balanced XLR and one unbalanced RCA per channel
Output Connectors: (Speaker Connectors) 4-POLE Speakon and one pair Binding Post per channel
Front Panel Controls: Power on/off switch, one gain control per channel
Rear Panel Controls Output mode switch: stereo (dual), parallel or bridge
Input sensitivity switch: 0.775V or 1.4V
Power Indicator: One blue LED
Signal Indicator: One green LED per channel
Clip (peak) Indicator: One yellow LED per channel
Fault Indicator: One red LED per channel
Construction
Protection: Protection against short circuits, no-load, on/off muting, RF interference. Stable into reactive or mismatched loads
Ventilation: Flow-through ventilation from front to back
Cooling: Internal heat sinks with forced air. Fan cooled, speed regulated, thermal protection