6 specifications, Minimum guaranteed power, D-45 – Crown Audio D-75A User Manual

Page 15: D-75a, Performance, D d-455, D- d-75aa

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D Series Power Amplifiers

page 15

Operation Manual

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
8 ohms
16 ohms

35W
25W
20W

55W
40W
25W

120V/60 Hz Units, Bridge mono mode

1 kHz with 0.1% THD
8 ohms
16 ohms

70W
50W

110W

80W

Performance

D

D-45

5

D-

D-75A

A

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,
from.25 watts to full bandwidth power

< 0.01%

< 0.01%

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
Bridge Mono

4-16 ohms
8-16 ohms

4-16 ohms
8-16 ohms

Required AC Mains
North American units
International units

120 VAC, 60 Hz

100, 120, 200, 220, and 240 VAC (± 10%), 50 to 400 Hz

depending on the transformer configuration

120 VAC, 60 Hz

100, 120, 200, 220, and 240 VAC (± 10%), 50 to 400 Hz

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)

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