Crest Audio CPX 4, Operating Manual

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CPX 4
Rated Power @ 120 VAC or 240 VAC
Stereo* Mode
2 Ω, 1 kHz, 1% THD (RMS per channel) 800 W
4 Ω, 1 kHz, 1% THD (RMS per channel) 1,600 W
8 Ω, 1 kHz, 1% THD (RMS per channel) 1,005 W
Bridge* Mode (Mono)
8 Ω, 1 kHz, 1% THD (RMS) 3,200 W
4 Ω, 1 kHz, 1% THD (RMS) 1 ,600 W
Minimum
Load Impedance
2 Ω
Maximum
RMS Voltage per channel 97 V
Frequency Re0, -2 dB @ 1 W
Stereo mode, both channels 0, -2 dB @ 1 W 12 Hz - 35 kHz
Hum & Noise
"A" weighted, reference to rated power @ 8 Ω > 88 dB
Crosstalk
@ 1 kHz, at rated output power @ 8 Ω > -55 dB
Input Sensitivity RMS Voltage
@ rated output power, 4 Ω 1.95 V
Input Impedance
Balanced, XLR (pin 2 positive) & TRS 1/4" Jack 10 kΩ
Overall
System Gain per Channel
40X (+32 dB)
Distortion (THD)
Stereo Mode, both channels driven, 20 Hz - 20 kHz, 10 dB, 4 Ω < 0.1%
Slew
Rate
> 12 V/µs
Damping Factor 8 Ω, 20 Hz -2 kHz
Stereo Mode, both channels driven, 8 Ω, 20 Hz -2 kHz > 400:1
Topology
Class H
Limiter
(GCL - switchable)
Yes
Input Connectors
Input 2 x 3-pin XLR - 1/4" Jack (TRS) Combo
Link 2 x 1/4" Jack (TRS) High Out
Output Connectors
Stereo Mode 2 x 4-pin Twist-Lock
Bridge Mode 1 x 4-pin Twist-Lock
Crossover
Switchable per channel 100 Hz (4th order Linkwitz-Riley)
Low Cut
Switchable per channel -3 dB @ 40 Hz (12 dB per Octave)
Mode
Select
Stereo & Bridge Mode
Cooling System
Temperature dependent, air flow - back to front 2 x Two-Speed DC Fan
Protection
Amp Full short circuit, open circuit
Over-temp thermal
RF
Stable into any load
Specifications