Crest Audio CPX 3800 - Manual (Page 31)

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CPX
TM
Series
CPX 3800
Rated Power Bridged 8 ohms 2650 watts @ 1 kHz at <0.1% T.H.D.
Rated Power (2 x 4 ohms) 1300 watts per channel @ 1 kHz at <0.05% T.H.D. both channels driven
Rated Power (2 x 8 ohms) 775 watts per channel @ 1 kHz at <0.05% T.H.D. both channels driven
Rated Power (1 x 4 ohms) 1500 watts @ 1 kHz at <0.05% T.H.D.
Rated Power (1 x 8 ohms) 875 watts @ 1 kHz at <0.05% T.H.D.
Minimum Load Impedance 4 ohms
Maximum RMS Voltage Swing 93 volts
Frequency Response 10 Hz - 100 kHz; +0, -2 dB at 1 watt
Power Bandwidth 10 Hz - 35 kHz; +0, -3 dB at rated 4 ohm power
T.H.D. (2 x 4 ohms) <0.1% @ 1050 watts per channel from 20 Hz to 20 kHz
T.H.D. (2 x 8 ohms) <0.1% @ 700 watts per channel from 20 Hz to 20 kHz
Input CMRR >- 55 dB @ 1 kHz
Voltage Gain x40 (32 dB)
Crosstalk > -55 dB @ 1 kHz at rated power @ 8 ohms
Hum and Noise > -108 dB, “A” weighted reference to rated power @ 8 ohms
Slew Rate > 15V/us
Damping Factor (8 ohms) > 500:1 @ 20 Hz - 1 kHz
Phase Response +5 to - 12 degrees from 20 Hz to 20 kHz
Input Sensitivity (x40) 1.8 volts +/- 3% for 1 kHz, 4 ohm rated power
Input Impedance 15 k ohms, balanced
Current Draw @ 1/8 Power 1185 watts @ 4 ohms
720 watts @ 8 ohms
Current Draw @ 1/3 Power 2975 watts @ 4 ohms
1835 watts @ 8 ohms
Cooling Two front panel temperature dependent variable speed 80 mm DC fans
Controls 2 front panel attenuators, rear panel Mode switches
Indicator LEDs 2 GCL (gain comparator limiting), 2 Signal presence, 2 Active Status
Protection Thermal, DC, turn-on bursts, subsonic, incorrect loads
Connectors Per channel, Combi XLR & 6.3 mm phone input, Speakon® and Binding Post speaker
output, 15 amp IEC mains connector
Construction 14 ga. steel with cast front panel and cast handles
Dimensions 88.9 mm x 482.6 mm x 376.3 mm + 31.8 for rear support ears and connectors
(3.5" x 19" x 14.81" + 1.25”) + 38.1 mm (1.5”) handle depth
Net Weight 19.5 kg (43 lbs)
Gross Weight 20.6 kg (45.5 lbs)
All power measurements made at 120 VAC, power transformer cold. 4 ohm power is time limited by magnetic circuit breaker.
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All power measurements made at 120 VAC, power transformer cold, 2 ohm power is time limited by magnetic circuit breaker