Crest Audio CC 1800 - Manual (Page 33)

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specifications
b
5500
Rated Power Bridge 4 ohms 5,550 watts @ 1 kHz at <0.1% T.H.D.
Rated Power (2 x 2 ohms) 2,750 watts per channel @ 1 kHz <0.05% T.H.D. both channels driven.
Rated Power (2 x 4 ohms) 1,800 watts per channel @ 1 kHz at <0.05% T.H.D. both channels driven
Rated Power (2 x 8 ohms) 1,150 watts per channel @ 1 kHz at <0.05% T.H.D. both channels driven
Rated Power (1 x 2 ohms) 3,600 watts @ 1 kHz at <0.05% T.H.D.
Rated Power (1 x 4 ohms) 2,200 watts @ 1 kHz at <0.05% T.H.D.
Rated Power (1 x 8 ohms) 1,280 watts @ 1 kHz at <0.05% T.H.D.
Minimum Load Impedance 2 ohms
Maximum RMS Voltage Swing 115 volts
Frequency Response 10 Hz - 40 kHz; +0, -3 dB at 1 watt
Power Bandwidth 10 Hz - 30 kHz; +0, -3 dB at rated 4 ohm power
T.H.D. (2 x 2 ohms) <0.2% @ 1,900 watts per channel from 20 Hz to 20 kHz
T.H.D. (2 x 4 ohms) <0.05% @ 1,525 watts per channel from 20 Hz to 20 kHz
T.H.D. (2 x 8 ohms) <0.05% @ 1,000 watts per channel from 20 Hz to 20 kHz
Input CMRR > -63 dB @ 1 kHz
Voltage Gain x 40 (32 dB), x 20 (26 dB)
Crosstalk > -67 dB @ 1 kHz at 700 watts @ 4 ohms
Hum and Noise > -110 dB, “A” weighted referenced to rated power @ 8 ohms
Damping Factor (8 ohms) > 400:1 @ 20 Hz - 1 kHz
Phase Response +5 to - 55 degrees from 20 Hz to 20 kHz
Input Sensitivity 2.18 volts +/- 3% for 1 kHz. 4 ohm rated power, 1.89 volts +/- 3% for 1 kHz. 2 ohm rated power
Input Impedance 15 k ohms balanced, 7.5 k ohms unbalanced
Current Draw @ 1/8 power 2,640 watts @ 2 ohms, 1,740 watts @ 4 ohms, 1,140 watts @ 8 ohms
Current Draw @ 1/3 power 5,920 watts @ 2 ohms. 4,150 watts @ 4 ohms, 2,690 watts @ 8 ohms
Cooling Two back panel temperature dependent variable speed 80 mm DC fans
Controls 2 front panel attenuators, rear panel Gain and Mode switches
Indicator LEDs 2 ACL (clip limiting), 2 Signal presence, 2 Active status, 2 Temp
Protection Thermal, DC, turn-on bursts, subsonic, incorrect loads.
Connectors Combi ¼” & XLR inputs, Speakon® and binding post speaker output, NEMA #L5-30P
AC power plug (USA only)
Construction 16 ga. steel with cast front panel
Dimension 88.9mm x 482.6mm x 377.8mm + 31.8mm for rear support ears and connectors
(3.5”x19”x 14.875” + 1.25”).
Net Weight 21.32 kg. (47 lbs.)
Gross Weight 22.9 kg. (50.5 lbs.)
All power measurements made at 120 VAC. 2 ohm power is time limited by magnetic circuit breaker.