The CXA81 Mk II is an Integrated Amplifier by Cambridge that delivers 80 watts x 2 channels into 8 ohms and 120 watts x 2 channels into 4 ohms. Minimum impedance of 4 ohms makes the CXA81 Mk II compatible with a wide range of loudspeakers. Thanks to its built-in ESS Sabre ES9018K2M DAC, you can play digital sources directly without the need for an external DAC unit. Cambridge CXA81 II has an MSRP of 1199$.
There are 9 Cambridge amplifiers in our database. Below you can see the main specs of these amps.
Cambridge Integrated Amplifier Series
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Performance Specs
One of the most important factors when deciding on an integrated amplifier is its power ratings and compatibility with your speaker's impedance requirements.The Cambridge CXA81 II is rated at 80 watts RMS into 8-ohms. Cambridge provides this wattage at a THD (Total Harmonic Distortion) of 0.02% which is an important indicator of distortion at the given values (lower THD is better).
Here are the main highlights of its performance specs:
- 80 watts into 8-ohms (20-20k) at 0.02%
- 120 watts into 4-ohms
- 4-ohms Min Impedance (allows compatibility with a wide range of loudspeakers)
- 105dB Signal to Noise Ratio
When pairing the Cambridge CXA81 II with a passive Bookshelf (Stand mount) or Passive Floor Standing (Tower) speaker, you have to check if their Max Power Range is below the max wattage of the amp for the given impedance levels.
Operating your amp outside of this max range may damage the speakers.
What size of room is the Cambridge CXA81 II Amplifier good for?
An essential deciding factor is the size of the room in which you intend to employ the Cambridge CXA81 II amplifier. Here, taking into account its maximum power parameters, we analyzed its applicability to various size environments:
| Listening Environment |
Suitability |
| Near-field | Poor |
| Small Room | Average |
| Mid-size Room | Good |
| Large Room | Average |
| Very Large Room | Poor |
Inputs and Outputs
Besides the performance specs of the Cambridge CXA81 II, the next important feature set that you have to evaluate is the input and output selections that it offers.
Cambridge CXA81 II has total of 5 Analog inputs .
Inputs
- Total Number of Analog Inputs: 5
- 2 Optical Digital Input
- 1 Coaxial Digital Input
- USB Input:
- USB Type-B input for connecting a computer
Cambridge CXA81 II Connections
Outputs
- Stereo RCA, Sub Preamp Outputs
- 3.5mm Headphone Output
- Subwoofer Output
Bluetooth Connectivity
Cambridge CXA81 II features built-in Bluetooth for wireless music streaming from your Bluetooth-enabled devices such as Apple iPod/iPhone/iPad, Android smartphone/tablet, Windows PC, Mac computers/laptops.
Among the amps in the same price range, these are the 5 amps that have Bluetooth Connectivity:
Cambridge CXA81 II supports the following Bluetooth Codecs when used with supported devices:
Phono Input
Cambridge CXA81 II doesn't have a phono input so in order to play your vinyl albums, Cambridge CXA81 II has to be paired with a Phono Preamp that is MM (Moving Magnet) or/and MC (Moving COil) depending on your cartridge type.
Subwoofer Output
Cambridge CXA81 II has a dedicated subwoofer output which can be used to connect it directly to a powered subwoofer via an LFE(Low Frequency Effects) cable.
Check our
Powered Subwoofers page to find a subwoofer that will work with Cambridge CXA81 II amp and your speakers.
DAC and Digital Music
The Cambridge CXA81 II's built-in DAC allows the connection of digital sources directly, eliminating the need for an external DAC. The DAC chip that is used in the CXA81 Mk II is the
ESS Sabre ES9018K2M, and supports resolutions up to
24-bit, 384KHZ.
Cambridge CXA81 II External Dimensions and Weight
Cambridge CXA81 II has external dimensions of (H x W x D) 4-1/2inch x 16-15/16inch x 14-9/16inch (115.0mm x 431.0mm x 370.0mm ). The unit weighs
8.68kg / 19.1lbs.
Base Surface Area
Base surface area of an integrated amplifier may become an important decision factor when the space in your room or desk is limited.
The base area of the Cambridge CXA81 II is approximately 1594.7cm2 / 247.2inch2.
- Width: 431.0mm (16-15/16")
- Height: 115.0mm (4-1/2")
- Depth: 370.0mm (14-9/16")
- Weight: 8.68 kg (19.10lbs)
- Base Surface Area: ~1594.7cm2 / 247.2inch2
- Volume: ~18.3 liter / 4.8 gallon
Cambridge CXA81 II - Top View
Cambridge CXA81 II - Side View
What's in the Box of Cambridge CXA81 II?
Here are the items that are included inside the box of CXA81 Mk II:
Integrated amplifier6-feet AC power cordRemote control3 -inchAAA-inch batteriesBluetooth antenna39-inch mono-RCA control cableQuick Start GuideImportant Safety InstructionsOnline Registration Card
User's Manual
For more information about how to setup, use and maintain the Cambridge Audio CXA81 Mk II, use the direct link below to download the official manual document:
Download User Manual for Cambridge CXA81 II
Official Product Page
Official manufacturer's product page for the Cambridge Audio CXA81 Mk II Integrated Amplifier can be found below:
Official Product Page for Cambridge CXA81 II
Warranty
2 Yr (3 Yr registered) of parts warranty and 2 Yr (3Yr registered) of labor warranty is generally provided for the Cambridge CXA81 II by the manufacturer.
Cambridge CXA81 II Lifestyle
| General |
| Brand |
Cambridge |
| Full Model Name |
Cambridge Audio CXA81 Mk II |
| Amplifier Type |
Integrated Amplifier |
| Amp Class |
Class AB |
| Performance |
| Watts RMS per Channel into 8-ohms |
80 watts |
| Watts RMS per Channel into 6-ohms |
N/A |
| Watts RMS per Channel into 4-ohms |
120 watts |
| Frequency Bandwidth |
20-20k |
| THD |
0.02% |
| Minimum Impedance |
4 |
| Signal to Noise Ratio |
105 dB |
| Digital Music |
| Built-in DAC |
Yes |
| DAC Specs |
ESS Sabre ES9018K2M |
| Bluetooth |
Yes |
| WiFi |
N/A |
| Ecosystem |
| Apple AirPlay |
No |
| Apple AirPlay2 |
No |
| DTS Play-Fi |
No |
| Chromecast built-in |
No |
| Roon |
Tested |
| HEOS |
No |
| BluOS |
No |
| CONNECTIONS |
| Total Analog Inputs |
5 |
| Phono Input |
No |
| Optical Digital Inputs |
2 |
| Coaxial Digital Inputs |
1 |
| USB Input |
Yes |
| USB Type |
USB Type-B input for connecting a computer |
| Preamp Outputs |
Stereo RCA, Sub |
| Pre-out / Main-in Loop |
No |
| Headphone Output |
3.5mm |
| Subwoofer Output |
Yes |
| Removable Power Cord |
IEC 3-prong |
| PHYSICAL SPECS |
| Height |
115.0mm (4-1/2") |
| Width |
431.0mm (16-15/16") |
| Depth |
370.0mm (14-9/16") |
| Weight |
8.68 kg (19.10lbs) |
| OTHER |
| Parts Warranty |
2 Yr (3 Yr registered) |
| Labor Warranty |
2 Yr (3Yr registered) |