Azur 351A


Taking cues from the award-winning 651A amplifier, this slimline yet powerful amplifier features 45 watts of power per channel, a USB audio input, and a front facing 3.5mm jack for easily connecting iPods and MP3 players. At this price point it's unbeatable.

Available Colours


The 351As minimalistic all metal casework was chosen not just for its aesthetics, but because of the low-resonance properties and the excellent stable foundation for the electronics it offers. The brushed aluminium front panel is an object in simplicity and just features volume, power, source, and tone controls.

This is just one example of the no compromise attention-to-detail which places the 351A head and shoulders above its competition in terms of sound quality.

To find out more about the Azur 351A, take a look at the video opposite.

Digital Input

The 351A offers a wide range of inputs so you can connect and enhance all your entertainment devices. Most importantly, we've developed a brand new USB audio input so you can directly connect your Mac or PC. A Burr Brown DAC (digital to analogue converter) takes the digital audio signal from your computer, bypassing its basic soundcard, and takes care of the delicate digital to analogue conversion process inside the amplifier. So for listening to iTunes and streaming services you can connect your computer to the 351A and use it as your primary audio source with CD quality results!

iPod Integration

iPods and MP3 players can be connected to the 351A via a dedicated 3.5mm jack on the front panel. In addition, our supplied remote features iPod command codes enabling you to control your iPad, iPhone or iPod when it’s connected to a suitable dock such as one from our id range


5 gold plated audio connections are also available for all of your other entertainment sources like CD players, tuners, network players and even your TV. The gold plating provides a corrosion free and highly electrically conductive surface for a perfect connection.


The 351A features a heavyweight toroidal transformer, a premium component chosen for its ability to offer huge power reserves, excellent bass response, and rich musical reproduction across the volume range. We always concentrate on the quality of the key components rather than adding unnecessary functions or connections. This ensures that we can offer an undiluted audio performance.

We allow you to boost your audio performance even further with the Direct switch which disables the 351As tone controls to give the shortest possible signal path.

Our View
R&D Support Technician
"Only through our passion for developing the finest audiophile-grade technologies is it possible to deliver the performance levels offered by the 351 Series. With many of the design principles found in the 851 and 651 Series, the 351A and 351C really do offer a lot for your money!"


What Hi-Fi Sound and Vision

"The two Cambridges make a formidable pairing: the 351A offers precision, while the 351C revels in the subtleties."

United Kingdom November 2012

"This is a rather special combination from Cambridge Audio and all credit is due to its designers for delivering so much music at so reasonable a price."

United Kingdom November 2012
On Top Audio

"...un excellent départ pour une chaîne hifi digne de ce nom."

Read more - France January 2013
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    • Audiophile grade oversize toroidal transformer and substantial extruded heatsink allowing 2 x 45 Watts RMS into 8 Ohms
    • USB audio input allowing USB audio streaming from computer
    • ALPs film type, black box volume pot for superb low level channel balance and stereo imaging
    • Front mounted 3.5mm iPod/MP3 player connection
    • Low dissipation polypropylene signal capacitors and custom made electrolytic capacitors in critical positions
    • Acoustically damped full metal chassis with thick brushed aluminium front panel
    • Supplied with Azur remote handset - also controls Azur CD players and iPod/iPhone docks including Cambridge Audio iD100, iD50 and iD10

Top Tips


Power output45W RMS into 8 Ohms
THD (unweighted)< 0.02% @ 1kHz, 80% of rated power
< 0.15% 20Hz - 20kHz, 80% of rated power
Inputs5 x RCA, 1 x USB (type B), 1 x 3.5mm MP3 input
OutputsSpeakers A & B, 1 x Rec Out, ¼'' headphone out,
USBUSB audio 1.0 16-bit 32kHz, 44.1kHz, 48kHz
Frequency response5Hz - 50kHz
S/N ratio (ref 1w)>92dB (unweighted)
Input impedance47k Ohms
Max. power consumption320W
Bass/treble controlsShelving, ultimate boost/cut +/-10dB @ 20Hz and +/-6dB @ 20kHz
ColourBlack or silver
Dimensions (WxHxD)430 x 86 x 340mm (3.4 x 16.9 x 13.4'')
Weight6.0Kg (13.2lbs)

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