Cambridge Audio 651A Service Manual

Service Manual
651A
Amended Aug 2013 to include APD variant model
Technical specications
Specications
Power output 75 watts (into 8Ω)
THD (unweighted) <0.002% @ 1kHz, 80% of rated power
<0.03% 20Hz - 20kHz, 80% of rated
power <0.02% 20Hz - 20kHz @ 10W
Frequency response (-1dB) 5Hz - 50kHz
S/N ratio (ref 1W) >92dB (unweighted)
Input impedances 47kohms
Power Amp damping factor >100
Max. power consumption 600W
Standby power consumption <0.5W @ rated mains
Bass/Treble controls Shelving, ultimate boost/cut
+/- 7.5dB @ 20Hz and 20kHz
USB input USB Audio 1.0
16 bit 32kHz, 44.1kHz, 48kHz.
USB maximum current rating 500mA
Dimensions (H x W x D) 120 x 430 x 350mm
(4.7 x 16.9 x 13.8”)
Weight 8.4kg (18.5lbs)

Cambridge Audio 651A Specifications

General

S/N Ratio	>92dB (unweighted)
Input Impedance	47k ohms
Power Consumption	600W
Damping Factor	>100
Power Output	75W RMS into 8 Ohms
THD (unweighted, 20Hz-20kHz)	<0.02%
Frequency Response	5Hz - 50kHz (+/-1dB)
Inputs	1 x 3.5mm (Front Aux)