Cambridge Audio 550A Service Manual

Gallery Court Hankey Place London SE1 4BB UK
Tel: +44 (0)20 7940 2200 Fax: +44 (0)20 7940 2233
550A/650A
Issue Date: 10
th
June 2009
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SERVICE MANUAL
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550A/650A
Power output: 550A
650A
60 watts (into 8Ω)
75 watts (into 8Ω)
THD (unweighted): 550A
650A
<0.002% @ 1kHz, 80% of rated power
<0.05% 20Hz - 20kHz, 80% of rated power
<0.02% 20Hz - 20kHz @ 10W
<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: 550A
650A
500W
600W
Standby power consumption <1W @ rated mains
Bass/Treble controls
Shelving, ultimate boost/cut +/- 7.5dB @ 20Hz and
20kHz
Dimensions
120 x 430 x 350mm
(4.7 x 16.9 x 13.8”)
Weight: 550A
650A
8.0kg (17.6lbs)
8.4kg (18.5lbs)

Cambridge Audio 550A Specifications

General

Input Impedance	47k Ohms
Damping Factor	> 100
Signal to Noise Ratio	> 100 dB
Dimensions	430 x 120 x 300mm (16.9 x 4.7 x 11.8")
Inputs	4 x line level RCA
Power Output	50 W per channel (into 8 ohms)