Cambridge Audio CXA81 80 Watt Integrated Stereo Amplifier with aptX HD Bluetooth (Gray)

$1,499.00 OR

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Model: C11130K UPC: 5055300418784 Item: 173737

Product Information


  • 80-watts per channel with Class AB amplification for detailed and powerful audio performance
  • Separate, symmetrical left and right channels are carefully engineered to deliver incredible sound-staging
  • Balanced XLR inputs for low noise interference
  • High Quality DAC - Connect digital sources directly via TOSLINK and Coaxial
  • USB Audio Input accepting up to 32bit/384kHz & DSD 256 digital files from Mac or PC
  • Bluetooth aptX HD built in

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. CXA81: it’s everything you loved about CXA80, but more so.

Uncompromised And Uncompromising

All the research, all the development, all the time and effort that’s been expended on 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. CXA81 has been designed and specified without compromise, in order to deliver the complete musical picture.

The Whole Story

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. 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

CXA81 covers all connectivity bases, giving you complete freedom of choice. 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 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, CXA81 is a complete solution. Its combination of versatility, power and audio excellence means it can form the center of your musical experience for years to come.        




  • Power Output: 80W RMS into 8 Ohms, 120W RMS into 4 Ohms
  • DAC: ESS Sabre ES9016K2M
  • Frequency Response: <5Hz - 60kHz +/- 1dB
  • Analog 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)
  • Compatibility: 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: Yes
  • Roon Tested: Yes
  • Outputs: Speakers A+B, 3.5mm headphone, Preamp Output, Subwoofer Output
  • Remote Control: Yes
  • Max Power Consumption: 750 W
  • Standby Power Consumption: <0.5W
  • Dimensions (W x H x D): 16.9" x 4.5" x 13.4"
  • Weight: 19.1 lbs

What's in the Box

What's in the Box

  • CXA81 Integrated Amplifier
  • Power Cable
  • 3 x AAA Batteries
  • Remote Control
  • Control Bus Cable
  • Bluetooth Antenna
  • Quick Start Guide
  • Saftey Guide


We'd love to hear your thoughts! Please leave a review.

Customer Reviews for Cambridge Audio CXA81 80 Watt Integrated Stereo Amplifier with aptX HD Bluetooth (Gray)

5.0 / 5.0
11 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
Fantastic amp! Replaced my Marantz receiver with this. The sound quality for both digital and vinyl is excellent.
This review was collected as part of a promotion
January 8, 2023
2 months ago
Rated 5 out of 5
Cambridge Impresses With This Integrated Amp
Completely happy with this integrated amp. I purchased it thinking I would end up having to return it but it’s now part of the family. Easily powers the Dynaudio towers with ease.
May 16, 2022
11 months ago
Rated 5 out of 5
My overall impression that for price point and sound quality this is a fantastic deal.
This is a just a super integrated amplifier, the sounds coming from my ( Martin Logan ) speakers is just so clear and smooth. I strongly recommend to purchase this device and by the way it also does a wonderful job of steaming music as well.
November 24, 2021
1 year ago
Rated 5 out of 5
Insane Amplifier!
I have had the cxa 81 for about 12 months. I listen to every type of music....a real variety. I do tend to buy amps which suit rock, i like to feel like the ban is in the room. My speakers are some axent line arrays and Linn sub. I have several speaker sets and also audition other speakers in a buy and sell capacity.
My room is about 50m2. This amp replaced a harmon kardon beast and a nad vintage stereo amp.
I am blown away by the cxa 81. The sound is balanced,warm and fills the room. I wasnt a fan of the idea bluetooth, but the sound from the bt is actually really nice for most listening. I use bt for spotify. For hdef it has a usb input and plenty of other ways to connect. really needs a phono stage but i have externals for that. This amp is simply insane
April 9, 2021
Rated 5 out of 5
CXA81 80 Watt Integrated Stereo Amplifier with aptX HD Bluetooth (Gray)
Beautiful detailed sound and plenty of power. Awesome at this price point!
October 30, 2020
Rated 5 out of 5
Sounds amazing with my Klipsch Forte IIIs.
June 22, 2020
Rated 5 out of 5
Sounds Great
I am replacing an old Sherwood receiver with the CXA81. The sound is much clearer and the soundstage is better. I also like the idea of the built in DAC and bluetooth. This is connected to a pair of Polk Audio LSiM703 they have never sounded better.
This review was collected as part of a promotion
May 20, 2020
over 2 years ago
Rated 5 out of 5
Excellent Sound!
This review was collected as part of a promotion
User submitted image
Added May 13, 2020
May 13, 2020
over 2 years ago
Rated 5 out of 5
Beautiful sound, amazing build quality and nice, simple operation. Plenty of inputs, both digital and audio, and CA USA were helpful when I asked for the RS-232 serial connection information.
February 5, 2020
Rated 5 out of 5
Awesome amplifier. Very good quality for the price.
January 2, 2020


Customer Q & A

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Browse 8 questions Browse 8 questions and 10 answers
Why did you choose this?
World Wide Stereo Store
Chris C on Jul 20, 2021
Great reviews
george w on Jan 7, 2021
Chris C on Jul 20, 2021
great reviews
Raymond B on Feb 9, 2021
Great reviews
george w on Jan 7, 2021
great reviews
Raymond B on Feb 9, 2021
I don't need the power from the CXA81, but are there any other reasons to choose it over the CXA61?
A shopper on Jun 3, 2020
Cambridge Audio CXA81 80 Watt Integrated Stereo Amplifier with aptX HD Bluetooth (Gray)
Cambridge Audio CXA81 80 Watt Integrated Stereo Amplifier with aptX HD Bluetooth (Gray)
Cambridge Audio CXA61 60 Watt Integrated Stereo Amplifier with aptX HD Bluetooth (Gray)
Cambridge Audio CXA61 60 Watt Integrated Stereo Amplifier with aptX HD Bluetooth (Gray)
  Thanks for your question. Other than the output power difference, the 81 has one pair of balanced XLR inputs for lower noise, separate symmetrical amp topology, and higher dynamic headroom when played at increased volume.
does it come with a remote?
A shopper on May 16, 2020
  Thanks for your question. The CXA81 is shipped with a remote control in the box.
Can this amp be used to bi-amp a set of speakers?
Michael S on Sep 22, 2021
  Thanks for your inquiry. Bi-amplification requires two separate amplifiers as well as speakers capable of bi-amping. One of our product specialists would be happy to answer any questions you have and explain the differences between bi-amping and bi-wiring.
Will this push my 350 watt Cerwin Vega DX-9's?
A shopper on Sep 15, 2021
  Thanks for your inquiry. Cerwin Vega speakers of that era are very efficient. They will play very loud with modestly rated amplifiers. The DX9 has a nominal rated power of 5 watts RMS. The peak power rating is 350 to 400 watts (not an RMS rating), at rated 4 ohms impedance. The Cambridge Audio CXA81 delivers a prodigious 80 watts of power per channel (at 8 ohms) and will power the DX-9s very effectively.
Hi. Can you please confirm that it is compatible with 110V and 220V input voltages?
Thank you in advance!
A shopper on Nov 22, 2020
  Thanks for your question. Cambridge Audio models sold in this country are 110 V AC only. They will not accommodate 220 V.
everything for bluetooth out of the box, no need to purchase dongle?
A shopper on Aug 19, 2020
  Thanks for your question. The CXA81 has Bluetooth aptX HD built in. No dongle necessary.
Is this amp powerful enough to drive Focal 906 speakers?
A shopper on Jun 10, 2020
  Thanks for your question. The CXA81 would be a fine match to drive the Focal 906. The 906 is 89dB sensitivity, and recommended power range is 25 to 120 watts per channel. The Cambridge CXA81 is powerful enough, a very good combination.