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| Cambridge Audio Azur 640A V2 Integrated Amplifier |  | 
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FREE 3 DAY SHIPPING! (When ordering, use coupon code: free3day))
The Azur 640A is back with a raft of upgrades. It now thumps out a whopping 75 watts thanks to a higher specification toroidal transformer. Moreover, a chunkier heat sink allows the amplifier to dissipate more energy and run cooler than before, meaning the amplifier can operate harder, for longer.
The Azur 640A V2's sensitive preamp circuitry has also been significantly redesigned, generating lower noise and THD (total harmonic distortion), while delivering greater levels of transparency. At the heart of these enhancements is a completely new input PCB with buffering on every input which has radically reduced crosstalk and provides even better imaging characteristics.
The Azur 640A also sees improvements to the power amplifier circuitry layout, with many small but significant refinements further reducing distortion and improving the drive capability with real world speakers.
The 640A is now Incognito Ready!
To allow seamless integration with multi-room entertainment systems, the Azur 640A now has Control Bus input and output as well as an IR emitter input. Outputs for Cambridge Audio's new Incognito multi-room system are even included. This enables self-amplified Incognito multi-room keypads to be connected to the 640A allowing the hi-fi system to be shared with up to two other rooms. Each gains local control.
All this technology is housed on Cambridge Audio’s hugely respected low resonance, acoustically damped chassis, which takes in a thick aluminium front panel. Here you’ll find changes to the volume, tone and balance controls, with new pots offering better feel, as well as greater accuracy and improved channel matching at low volumes.
There’s also a heavier steel skin on the main volume knob adding greater and a better feel. Completing the upgrades is a highly ergonomic navigator style Azur remote handset.
The new 640A is available in silver or black.
Azur 640A (Version 2) features:
75 watts per channel (8 Ohms)
Improved pre-amp and power amp circuitry
100 watts per channel (4 Ohms)
CAP5™ protection system with no sound quality degrading active circuitry added into the signal path
Incognito Ready(TM) (Type 1) A-Bus multi-room outputs
Control Bus In and Out
IR emitter in
Improved volume, tone and balance controls
New custom designed 3-way terminals
Solid aluminium front panel with acoustically damped chassis and all metal casework
All new navigator style Azur remote control
Azur 640A (Version 2) Specifications:
Power Output: 75 watts into 8 Ohms
100 watts into 4 Ohms
Input Impedance: 47k Ohms
Loudspeaker Impedance: 4 to 8 Ohms
Line: 330mV
Phono (using optional phono stage): 1.75mV
Total Harmonic Distortion (into 8 Ohms 80% rated power): 0.008% THD (No weighting) @ 1kHz
0.005% THD (A weighted) @ 1kHz
0.02% THD (No weighting) @ 20Hz - 20kHz
Frequency Response: 5Hz to 50kHz +/- 1dB
Bass: +/- 10dB @100Hz
Treble: +/- 10dB @10kHz
Signal to Noise Ratio (No weighting): 92dB
Slew Rate (into 8ohms): 30V/uS
Max. Power Consumption: 515 Watts
Dimensions (mm): 430 x 320 x 100
Weight: 7 kg/15.4 lbs
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