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Cambridge Audio CXA81 Integrated Amplifier

Cambridge Audio

  • 80W RMS into 8 Ohms, 120W RMS into 4 Ohms
  • 1x USB, 2x optical + 1x coaxial digital inputs (ESS DAC)
  • USB up to 32-bit/384kHz and DSD256
  • aptX HD bluetooth
  • 3x RCA, 1x XLR, 1x 3.5mm analogue inputs; headphone
  • A/B speaker, pre-amp, IR, trigger, RS-232 & control bus


CX Series 2. The Sound Of Progress.

Half a decade after the CX range redefined performance at its price point, it?s time to reimagine, reengineer and reinvigorate. The all-new CXA61 and CXA81 integrated amplifiers build on the foundations laid (and the Awards won) by CXA60 and CXA80, but with a fresh and progressive perspective.

The CXA81 is poised, effortless and sophisticated. Its 80 watts per channel give it complete authority over music, and it wrings every emotional and musical nuance from your whole collection.

Making The Best Better

How do you take an admired and successful integrated amplifier, one that?s won respect and plaudits around the world, and make it even better? Well, if you?re a Cambridge Audio engineer, you examine every aspect of the performance ? and then you do everything you can to make it ?more?. More refined, more precise, more engrossing? more musical. The CXA81: it?s everything you loved about the CXA80, but more so.

Uncompromised And Uncompromising

All the research, all the development, all the time and effort that?s been expended on the CXA81 has been for one reason alone: to make this the most accomplished and absorbing integrated amplifier ever offered at the price. Every component selected, and every engineering decision taken, is based entirely on the desire to progress. The CXA81 has been designed and specified without compromise, in order to deliver the complete musical picture.

The Whole Story

The CXA81 is designed to bring your music to life, no matter how it?s stored. So it features an entirely new digital board, including the cutting-edge ESS Sabre ES9016 digital-to-analogue convertor. Which means digital audio files up to a heady 32bit/384kHz, or DSD256, are brought dramatically to life, with every detail and nuance delivered intact and in full. The CXA81 combines unparalleled accuracy with vivid musicality, without sacrificing convenience.

Power and Control

Thanks to numerous improvements and upgrades ? and thanks to an overspecified toroidal transformer ? the CXA81 delivers a prodigious 80 watts of power per channel. This means the CXA81 has complete authority over even the most demanding speakers, it means big dynamic shifts in music are handled with total control, and it means the whole musical picture is available no matter if you?re playing at discreet background levels or at party-time volumes.

Absolute Flexibility

The CXA81 covers all connectivity bases, giving you complete freedom of choice. As well as digital optical and digital coaxial inputs, it features unbalanced stereo RCA inputs alongside balanced XLR sockets ? and wireless connectivity via Bluetooth?s cutting-edge aptX HD standard is on board too. So there?s no need to compromise on performance in the name of convenience.

Unmatched Sonic Integrity

At the heart of the CXA81 beats a completely reimagined and redesigned power amplifier stage with optimised capacitor values. The resulting sound is pristine but not clinical, with unrivalled musical coherence no matter the source.

Partner For Life

Thanks to relentless dedication to progressive engineering, The CXA81 is a complete solution. Its combination of versatility, power and audio excellence means it can form the centre of your musical experience for years to come.

Weight 8700 g
Dimensions 341 × 430 × 115 mm

Power Output: 80W RMS into 8 Ohms, 120W RMS into 4 Ohms

DAC: ESS Sabre ES9016K2M

Frequency Response: <5Hz– 60kHz +/-1dB

Analogue Audio Inputs: 1x balanced XLR, 4 x RCA

Digital Audio Inputs: 1 x S/PDIF coaxial, 2 x TOSLINK optical, 1 x USB audio, Bluetooth (integrated)

– TOSLINK optical: 16/24bit 32-96kHz PCM only
– S/PDIF coaxial: 16/24bit 32-192kHz PCM only
– USB: audio profile 1.0/2.0 (default 2.0), up to 32bit 384kHz PCM, up to DSD256 or DoP256
– Bluetooth: 4.2 A2DP/AVRCP supporting up to aptX HD (24bit 48kHz)
Bluetooth aptX HD Receiver Built-in: Yes

Roon Tested: Yes

Outputs: Speakers A+B, 3.5mm headphone, Preamp Output, Subwoofer Output

Remote Control: Yes

Max Power Consumption: 750W

Standby Power Consumption: <0.5W

Dimensions (H X W X D): 115 x 430 x 341mm (4.5 x 16.9 x 13.4”)

Weight: 8.7kg (19.1lbs)

Box Contents: CXA81 Integrated Amplifier, Power Cable, 3 x AAA Batteries, Remote Control, Control Bus Cable


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