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| Cambridge Audio Azur 640P Phono Pre-Amplifier |  | 
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The 640P also uses superior amplification circuitry for its MM and MC stages to provide the lowest possible distortion and noise. In addition, the flagship model employs multi-parallel capacitors to achieve exceptional RIAA accuracy of only 0.3dB up to 50kHz and features a defeatable subsonic filter. The 640P employs a comprehensively specified Moving Magnet stage, as well as the higher gain needed for compatibility with high-end Moving Coil (MC) cartridges. This raft of technologies combines to offer a hugely dynamic, involving and open sound.
Both units feature the now customary Azur acoustically damped steel chassis and a robust anodised aluminium front plate.
Specifications:
Max. Power Consumption: 5W
Gain @ 1kHz: 39dB / 55dB
Nominal output: 300mV
Sensitivity for nominal output: 3.35mV / 0.5mV
THD 20Hz-20kHz: <0.007%
RIAA curve accuracy <+/-0.3dB 20Hz-50kHz (subsonic filter off)
Signal to noise ratio (using Audio Precision RIAA-1 with grounded inputs) >85dB / 82dB
Crosstalk @ 20kHz >76dB / >72dB
Dimensions (mm): 46 x 215 x 133 (mm) 1.8 x 8.5 x 5.2 (inches)
Weight: 0.9kg/2lbs
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