Crest Audio CC 1800 - Manual (Page 31)

p. 15
specifications
a
2800
Rated Power Bridge 4 ohms 2,800 watts @ 1 kHz at <0.1% T.H.D.
Rated Power (2 x 2 ohms) 1,400 watts per channel @ 1 kHz <0.05% T.H.D. both channels driven
Rated Power (2 x 4 ohms) 965 watts per channel @ 1 kHz at <0.05% T.H.D. both channels driven
Rated Power (2 x 8 ohms) 595 watts per channel @ 1 kHz at <0.05% T.H.D. both channels driven
Rated Power (1 x 2 ohms) 1,850 watts @ 1 kHz at <0.1% T.H.D.
Rated Power (1 x 4 ohms) 1,150 watts @ 1 kHz at <0.05% T.H.D.
Rated Power (1 x 8 ohms) 665 watts @ 1 kHz at <0.05% T.H.D.
Minimum Load Impedance 2 ohms
Maximum RMS Voltage Swing 82 volts
Frequency Response 10 Hz - 100 kHz; +0, -2.0 dB at 1 watt
Power Bandwidth 10 Hz - 35 kHz; +0, -3 dB at rated 4 ohm power
T.H.D. (2 x 2 ohms) <0.15 @ 1,150 watts per channel from 20 Hz to 20 kHz
T.H.D. (2 x 4 ohms) <0.1% @ 880 watts per channel from 20 Hz to 20 kHz
T.H.D. (2 x 8 ohms) <0.1% @ 560 watts per channel from 20 Hz to 20 kHz
Input CMRR > - 65 dB @ 1 kHz
Voltage Gain x40 (32 dB) x20 (26 dB)
Crosstalk > -65 dB @ 1 kHz at rated power @ 8 ohms
Hum and Noise > -111 dB, “A” weighted referenced to rated power @ 8 ohms
Slew Rate > 15V/us
Damping Factor (8 ohms) > 500:1 @ 20 Hz - 1 kHz
Phase Response +5 to - 15 degrees from 20 Hz to 20kHz
Input Sensitivity (x40) 1.7 volts +/- 3% for 1 kHz, 4 ohm rated power, 1.36 volts +/- 3% for 1 kHz, 2 ohm rated
power
Input Impedance 15 k ohms, balanced
Current Draw @ 1/8 power 1,250 watts @ 2 ohms, 880 watts @ 4 ohms, 570 @ 8 ohms
Current Draw @ 1/3 power 2,905 watts @ 2 ohms, 2,220 watts @ 4 ohms, 1,355 watts @ 8 ohms
Cooling Two back panel temperature dependant variable speed 80 mm DC fans
Controls 2 front panel attenuators, rear panel Mode switches
Indicator LEDs 2 ACL™ (automatic clip limiting), 2 Signal presence, 2 Active status, 2 Temp
Protection Thermal, DC, turn-on bursts, subsonic, incorrect loads
Connectors Combi XLR & 6.3 mm phone input, Speakon and 5-way Binding Post speaker output, 15 amp
IEC mains connector
Construction 16 ga. steel with cast front panel
Dimensions 88.9 mm x 482.6 mm x 377.8 mm + 31.8 mm for rear support ears and connectors
(3.5" x 19" x 14.875" + 1.25")
Net Weight 18.05 kg (39.8 lbs.)
Gross Weight 19.23 kg (42.4 lbs.)
All power measurements made at 120 VAC, power transformer cold. 2 ohm power is time limited by magnetic circuit breaker.