Cambridge Audio Azur 540P Technical Specifications

Tech specs
Azur 540P and 640P phono pre-amp
Phono pre-amplifier duo complements latest Azur
integrated amplifiers and AV receivers.
Extending the functionality of Cambridge Audio's critically acclaimed
integrated stereo Azur amplifiers and AV receivers are two phono
pre-amplifiers.
Employing state-of-the-art circuitry and high grade components
the 540P is a high quality Moving Magnet (MM) phono stage, while
the 640P features a more highly specified Moving Magnet stage, as
well as the higher gain needed for compatibility with high-end
Moving Coil (MC) cartridges.
The models feature single-ended 'Class A' gain stages and use
discrete transistors instead of the more common integrated circuits.
This gives less cross-talk and interference across the signal path,
with both designs delivering high gain and linearity. The 540P
employs an active RIAA equalisation, while the 640P makes use of
Azur 540P and 640P specifications
Max power consumption
Gain @ 1kHz
Nominal output
Sensitivity for nominal output
THD 20Hz-20kHz
RIAA curve accuracy
Signal to noise ratio
using Audio Precision RIAA-1 with grounded inputs
Crosstalk @ 20kHz
Dimensions (W x D x H) (mm):
Dimensions (W x D x H) (in):
Weight
Cambridge Audio, Gallery Court, Hankey Place, London, SE1 4BB, England
© 2005 Cambridge Audio Ltd Issued: August 2005
540P
5W
39dB
300mV
3.35mV
<0.009%
<+/-0.65dB
25Hz-20kHz
>85dB
>76dB
46 x 215 x 133
1.8 x 8.5 x 5.2
0.8kg/1.8lbs
w w w . c a m b r i d g e - a u d i o . c o m
audiophile passive RIAA equalisation, the optimum design type for
phono stages thanks to its complete lack of phase distortion.
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. 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. The rear
panels benefit from gold plated input connectors to minimise signal
path interference and reduce surface degradation and an external
power supply comes as standard.
640P
5W
300mV
<0.007%
<+/-0.3dB
20Hz-50kHz
(subsonic filter off)
46 x 215 x 133
1.8 x 8.5 x 5.2
0.9kg/2lbs
Cambridge Audio's policy is one of continuous
improvement. Design and specifications are
therefore subject to change without prior notice.
MM MC
39dB 55dB
3.35mV 0.5mV
>85dB >82dB
>76dB >72dB