CXA81 Integrated Stereo Amplifier

Cambridge Audio

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  • 80 watts per channel –  power to drive the most demanding speakers 
  • Class AB Amplification – for balanced & efficient performance 
  • Toroidal Transformer – for incredible sound-staging 
  • High Quality ESS Sabre ES9016 DAC – to realise digital music at its best 
  • Digital inputs – TOSLINK, Coaxial & USB Audio Input (up to 32-bit/384kHz & DSD256 digital files from Mac/PC) 
  • Balanced XLR inputs – for premium connection  
  • Bluetooth aptX HD input – connect wirelessly to devices, incl. Alva TT V2 
  • A/B Speaker Zones – power 2 sets of speakers 

Rewarding Performance 

Our CXA81 integrated amplifier builds on the foundations laid by the first CX Series, and over 50 years’ experience of building amps. It offers a progressive perspective – effortless, poised and sophisticated. 80 watts per channel give CXA81 complete authority over music, to reveal every emotion and nuance from your whole music collection – be that streamed or on disc. 

Your World’s a Stage

The thing that hits you when you hear CXA81 for the first time, is just how detailed everything sounds. You’ll pick up instruments, subtle shifts in tone, and harmonies you’ve previously missed. Close your eyes, and you’ll be able to place every musician in the soundstage. Once you’ve experienced CXA81, there’s no turning back.

Designed for Life

Thanks to the relentless dedication of our team in London, CXA81 is a complete solution. Its combination of versatility, power and audio excellence means it can form the centre of your musical experience for many years to come. Its elegant, minimalistic lines, crafted from aluminium and steel, will endure both physically and aesthetically. 



Power Output

80W RMS into 8 Ohms

120W RMS into 4 Ohms


ESS Sabre ES9016K2M

Frequency Response

<5Hz – 60kHz +/-1dB

Analogue Audio Inputs

1 x balanced XLR, 4 x RCA

Digital Audio Inputs

1 x balanced XLR, 4 x RCA


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 24-bit 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


Roon Tested



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

Remote Control


Max Power Consumption


Standby Power Consumption



115 x 430 x 341mm



Box Contents

CXA81 Integrated Amplifier, Power Cable, 3 x AAA Batteries, Remote Control, Control Bus Cable, Bluetooth antenna, Quick Start Guide, Safety Guide