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Azur 651C CD Player

The 651C has the ability to retrieve maximum digital information so you hear every last detail from your discs

If you're after a way of extracting every last piece of data from your CDs and turning it into the most musical experience imaginable, then look no further than the all-new 651C CD Player. Developed to offer a true taste of high-end musical reproduction at an altogether more affordable price, it features an all-new twin Digital to Analogue Conversion system (DAC) with the same selectable filter arrangement used in the legendary DacMagic. These enhancements, in addition to completely retuned audio circuits, make for an even purer, more lifelike experience than its highly regarded predecessor.

Where many CD players use drives designed for computers, at Cambridge Audio we went the extra mile and created a CD-only S3 Custom CD ServoTM drive. This audiophile design gives the 651C the ability to retrieve maximum digital information which in turn means you hear every last detail from your discs.

A thousand words cannot convey just how lifelike the 651C sounds but a two minute audition at your nearest Cambridge Audio dealer will tell you everything you need to know!...Read more

 

 
 
 

Reviews

Hi-Fi Choice
 

"The 65lC feels preffy polished at the price, inside and out... A very engaging machine that conveys the music in all its glory."

 

UK, Spring 2014

Hi-Fi News
 

"This is surely one of the very best value machines on sale today. The maturity it offers in its sonic performance is at a different level from its price rivals, and easily competes with machines costing twice or even three times as much. Once again then, Cambridge Audio shows itself a master of making humbke hifi sound superb."

 

UK, Spring 2014

Hi-Fi Choice
 

"Excellent affordable integrated amplifier, with an endearing character...

...A true everyman's amplifier this comes festooned with facilities."

 

UK, November 2012

Read more

In more detail

Twin Wolfson WM8742 DACs deliver a significant performance upgrade over the 651C's award-winning predecessor and are implemented in a dual differential configuration (each channel has its own DAC to process information). A sophisticated Two-Pole Dual Differential Double Virtual Earth Balanced Bessel filter configuration rejects virtually all noise and distortion present in the DACs and filters them to produce an unprecedented level of performance.
 
The new DACs also feature a selectable digital filter with three settings to suit your own listening preferences and of course your own system:

The Steep roll-off filter exhibits strong attenuation of aliasing images outside the pass band (i.e. above 22.05kHz) at the expense of a little pre and post-ringing in the time domain.
The Linear phase filter uniquely features, constant group delay' which delays all audio signals at all frequencies by the same amount meaning all audio is fully time-coherent at the output.
Minimum phase meanwhile does not feature constant group delay but rather the co-efficients have been optimised without feed-forward so that the impulse response exhibits no pre-ringing in the time domain.
 

cd_servo_grid5b

Cambridge Audio's CD-only S3 Custom CD ServoTM employs a custom designed chipset and the latest double-sided surface-mount technology for ultra short signal paths with freedom from wire links. Circuits and software have been meticulously designed and S3 dynamically adjusts focusing, tracking and output level of the laser in real-time, allowing for maximum retrieval of the digital information and jitter minimisation. This is all made possible by the implementation of a powerful ARM7 processor and complemented by a highly accurate master clock oscillator and carefully designed impedance-matched clock buffering scheme.

cd_transport_grid5b

Meanwhile, the well-proven transport guarantees incredible rigidity and the CD drawer itself has been designed to offer a smooth, high-end feel. And to ensure simple operation, a high contrast reverse black DFSTN (Double Film Super Twisted Nematic) display offers excellent feedback of the 651C's impressive features which now include CD-text support.

As with all our Azur CD players, a high quality toroidal transformer ensures lower noise and less waveform distortion for quieter PSU operation.  

 
Features
Audiophile grade toroidal transformer delivering ultra-low low noise and distortion
Twin Wolfson WM8742 DACs arranged in 2-Pole Bessel; Dual Differential Virtual Earth Balanced filter topology
Proprietary Cambridge Audio S3 servo solution
All PCBs and DAC stages feature doublesided surface mount technology, eliminating wire links and giving ultra short signal paths
New selectable digital filters - linear phase, minimum phase, steep
Highly accurate master clock oscillator and carefully designed impedance-matched clock buffering schemes
Wrap-around casework design with substantially thick brushed aluminium front panel and dual layer damped feet, giving enhanced resonance control
Eco-friendly <1W Standby power consumption
Available in black and silver finishes

Reviews

Hi-Fi Choice
 

"The 65lC feels preffy polished at the price, inside and out... A very engaging machine that conveys the music in all its glory."

 

UK, Spring 2014

Hi-Fi News
 

"This is surely one of the very best value machines on sale today. The maturity it offers in its sonic performance is at a different level from its price rivals, and easily competes with machines costing twice or even three times as much. Once again then, Cambridge Audio shows itself a master of making humbke hifi sound superb."

 

UK, Spring 2014

Hi-Fi Choice
 

"Excellent affordable integrated amplifier, with an endearing character...

...A true everyman's amplifier this comes festooned with facilities."

 

UK, November 2012

Diapson dor-2012

651C and 651A both win a prestigious French award, a Diapason D'Or!

 

France, November 2012

Witch Doctor

"...for the money, this gear is gold, particularly the amp... A highly, even wildly-recommended combination."

 

New Zealand, May 2012

What Hi-Fi? Sound and Vision
 

"651C is a good-looking, spacious-sounding disc spinner...

...651A is a meaty, powerful-sounding amp."

 

UK, March 2012

Specifications

Digital to Analogue Converter Dual Wolfson Microelectronics
WM8742 24-bit/192kHz capable
Filter 2-Pole Dual Differential Bessel
Double Virtual Earth Balanced
Frequency Response 20Hz - 20kHz (+/-0.1dB)
THD @ 1Khz 0dBFs: <0.003%
THD @ 1kHz -10dBFs: <0.0005%
THD @ 20kHz 0dBFs: <0.002%
IMD (19/20kHz) 0dBFs <0.002%
Linearity @ -90dBFs: +/- 0.5dB
Clock deviation +/- 20ppm
Stopband rejection (>24kHz): >90dB
Signal to Noise Ratio: >-115dB
Total correlated jitter: <140pS
Crosstalk @ 1kHz: <-100dB
Crosstalk @ 20kHz: <-99dB
Output Impedance: <50ohms
Max. Power Consumption 25W
Standby power consumption <1W
Dimensions (W x H x D) 430 x 85 x 305mm (16.9 x 3.4 x 12.2")
Weight 4.8Kg (10.6lbs)