Crown Audio Specifications, Minimum Guaranteed Power, Performance, D D-455, D- D-75AA

D Series Power Amplifiers

6 Specifications

Minimum Guaranteed Power	D-45	D-75A
120V/60 Hz Units, Dual mode, per channel, both channels driven
1 kHz with 0.1% THD
4 ohms	35W	55W
8 ohms	25W	40W
16 ohms	20W	25W
120V/60 Hz Units, Bridge mono mode
1 kHz with 0.1% THD
8 ohms	70W	110W
16 ohms	50W	80W

Performance	D D-455	D- D-75AA
Frequency Response (at 1 watt, 20Hz - 20 kHz)	± 0.1 dB	± 0.1 dB
Phase Response (at 1 watt, 20Hz - 20 kHz)	+10° to -15°	+10° to -15°
Signal to Noise Ratio (below rated power, 20 Hz to 20 kHz)	106 dB unweighted	106 dB unweighted
Total Harmonic Distortion (THD) at 1 watt, from 20 Hz to 20 kHz	< 0.05%	< 0.05%
Intermodulation Distortion (IMD) 60 Hz and 7 kHz at 4:1,	< 0.01%	< 0.01%
from.25 watts to full bandwidth power
Damping Factor: DC to 400 Hz	> 400	> 400
Crosstalk (below rated power, 100 Hz to 1 kHz)	>100 dB	> 100 dB
Input Impedance nominally balanced, nominally unbalanced	20 kilohms, 10 kilohms	20 kilohms, 10 kilohms
Load Impedance (Note: Safe with all types of loads)
Stereo	4-16 ohms	4-16 ohms
Bridge Mono	8-16 ohms	8-16 ohms
Required AC Mains	120 VAC, 60 Hz	120 VAC, 60 Hz
North American units
	100, 120, 200, 220, and 240 VAC (± 10%), 50 to 400 Hz	100, 120, 200, 220, and 240 VAC (± 10%), 50 to 400 Hz
International units
	depending on the transformer configuration	depending on the transformer configuration
Power Draw at Idle	15 W or less	15 W or less
Cooling	Convection cooled through chassis and front panel	Convection cooled through chassis and front panel
Dimensions: Width, Height, Depth	19 in. (48.3 cm) x 1.75 in. (4.5 cm) x 8.5 in. (21.6 cm)	19 in. (48.3 cm) x 1.75 in. (4.5 cm) x 8.5 in. (21.6 cm)
Net Weight, Shipping Weight	8 lb. 11 oz. (3.9 kg), 10 lb. 9 oz. (5.1 kg)	9 lb. 7 oz. (4.3 kg), 11 lb. 4 oz. (5.1 kg)

Operation Manual page 15