Cambridge Audio CXA81 MkII Review (2026): A Spec-Based Look
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This cambridge audio cxa81 mkii review focuses on the Cambridge Audio CXA81 MkII Integrated Amplifier. It is a separate integrated stereo amplifier designed for hi-fi systems. The two specs that define this unit are its 80 watts per channel output and its Class AB amplification. These figures indicate a design focused on driving demanding speakers with balanced efficiency. The listing also highlights the ESS ES9018K2M SABRE32 DAC for digital conversion. We explain what these specifications mean for your setup without claiming any personal testing experience.
What stands out
- 80 watts per channel output for demanding speakers
- ESS ES9018K2M SABRE32 DAC for reference-level conversion
- Class AB amplification for balanced performance
- Bluetooth aptX HD for wireless connectivity
- Balanced XLR inputs for premium connections
Who it fits
Good fit for
You should consider this amplifier if you own speakers that require significant power. The 80W per channel rating suggests it can handle difficult loads. It also suits listeners who value high-resolution digital sources. The inclusion of the ESS SABRE32 DAC and multiple digital inputs, including USB and coaxial, supports this. If you prefer wired connections but want occasional wireless flexibility, the Bluetooth aptX HD feature is a practical addition to your system.
Who should skip it
You might look at another option if you need a remote control or a mobile app. The provided data does not mention these features. Similarly, if you require a built-in phono stage for vinyl records, this unit does not list that capability. The CXA81 MkII focuses on line-level inputs and digital sources. If your setup relies heavily on analog turntables without an external preamp, this integrated amplifier may not fit your immediate needs without additional components.
Verdict: The CXA81 MkII offers robust power and high-quality digital conversion for listeners who prioritize specification-driven performance. It is a solid choice for those building a system around high-resolution sources and demanding speakers.
Key specs for CXA81 MkII
Power Output: 80W per channel
This rating indicates the amplifier can deliver 80 watts to each speaker channel. This power level is generally sufficient to drive most standard hi-fi speakers with ease. You will find it capable of handling dynamic peaks in music without strain. If you plan to use efficient bookshelf speakers, this output is more than enough. It ensures consistent volume levels even during complex musical passages, providing a reliable foundation for your listening setup.
Amplifier Class: Class AB
Class AB amplification combines the efficiency of Class B with the low distortion of Class A. This design is known for delivering warm, natural sound quality that many audiophiles prefer. It tends to run cooler than Class D amps while maintaining high fidelity. This choice suits listeners who prioritize tonal accuracy and musicality over raw power efficiency. It is a traditional and proven approach for high-fidelity stereo reproduction in home audio systems.
DAC Chip: ESS ES9018K2M SABRE32
The built-in digital-to-analog converter uses the ESS Sabre32 chip, a component often found in high-end audio gear. This chip processes digital signals from your sources into analog sound with high precision. It helps reduce noise and distortion, resulting in clearer audio reproduction. You benefit from accurate playback of digital files, including high-resolution formats. This specification suggests the unit can handle demanding digital sources with clarity and detail.
Wireless Connectivity: Bluetooth aptX HD
This feature allows you to stream audio wirelessly from devices like smartphones or tablets. The aptX HD codec supports high-resolution audio, preserving more detail than standard Bluetooth connections. You can connect easily without dealing with tangled cables for casual listening. This is useful for streaming from music apps while maintaining better sound quality than basic Bluetooth. It adds convenience to your system without compromising the integrity of the audio signal significantly.
Audio Inputs: TOSLINK, coaxial, USB, balanced XLR
The amplifier offers a variety of connection options for different sources. Digital inputs include optical TOSLINK and coaxial for CDs or streamers. USB allows for direct connection to computers for high-resolution playback. Balanced XLR inputs provide a noise-free connection for premium sources. This variety ensures you can integrate the amp with most existing gear. It offers flexibility for both digital and analog setups, accommodating various hi-fi configurations.
Design and Build Overview
The listing describes the Cambridge Audio CXA81 MkII in Luna Grey. This finish is part of the model C11310K specification. The exterior uses a solid chassis construction. This design choice helps reduce unwanted vibrations during operation. A rigid body ensures that the internal components remain stable. You can expect consistent performance without coloration from chassis resonance. The color option allows you to match the unit to existing audio gear or furniture. The grey tone is neutral and fits most listening environments. The build quality supports long-term use in a dedicated hi-fi setup.
The front panel layout prioritizes essential controls. You will find the power button and input selection clearly placed. The volume knob is positioned for easy access. This arrangement minimizes fumbling during casual listening. The unit features a built-in DAC, which is noted in the attributes. This means you do not need an external digital-to-analog converter for digital sources. The compact footprint allows it to fit on standard shelves. According to the listing, the device includes a toroidal transformer. This component is housed within the chassis to improve efficiency. The overall design is functional and focused on audio fidelity rather than flashy aesthetics.
Setup and Daily Operation Guide
Setting up the Cambridge Audio CXA81 MkII involves connecting your audio sources to its various input options. You can use the digital inputs, which include TOSLINK, coaxial, and USB Audio. These allow you to connect digital devices directly. The unit also features balanced XLR inputs for premium connections. This is useful if you pair it with components like the CXN100. For wireless audio, the amplifier includes Bluetooth aptX HD. This lets you stream music from compatible devices without cables. You can also connect a PC or Mac over USB for Roon Tested functionality. This feature enables specific software integration for your music library. The built-in ESS ES9018K2M SABRE32 DAC handles digital-to-analogue conversion. This chip converts digital signals into analogue sound for your speakers. Daily use is straightforward given the clear input selection. You switch between sources using the available connections. The Class AB amplification drives your speakers with 80 watts per channel. This power output ensures the amplifier can handle demanding speaker loads. The toroidal transformer supports stable performance during extended listening sessions. The Luna Grey finish remains visible on the front panel. This model, identified as C11310K, integrates these features into a single chassis. You benefit from both wired and wireless connectivity options. The setup process relies on the listed specifications. You do not need additional external DACs because of the internal chip. The balanced inputs provide a clean signal path for high-quality sources. Bluetooth offers convenience for mobile devices. The USB connection supports computer-based audio streaming. These specs define how you interact with the device daily.
Before you buy CXA81 MkII
The Cambridge Audio CXA81 MkII is a separate integrated stereo amplifier, not a full receiver. You must connect it to active speakers or a passive speaker pair paired with a subwoofer or external power amp if you use passive drivers. The unit includes a built-in ESS ES9018K2M DAC, so you can connect digital sources directly via TOSLINK, coaxial, or USB Audio. Ensure your source devices support these connections. Bluetooth aptX HD allows wireless streaming from phones or computers. For high-resolution setups, the balanced XLR inputs offer premium connectivity. You may need speaker cables and appropriate digital interconnects. The Class AB design requires adequate ventilation. This amplifier fits into the mid-range of hi-fi systems, offering robust power without the complexity of a full receiver. It suits listeners who prioritize sound quality and direct connectivity over multi-room features.
Check before you buy
- Verify you have powered speakers or a separate power amplifier for passive speakers.
- Check that your digital sources have TOSLINK, coaxial, or USB Audio outputs.
- Ensure your room has enough space for ventilation around the amplifier.
- Confirm your Bluetooth devices support aptX HD for optimal wireless audio quality.
The product at a glance
Cambridge Audio CXA81 MkII Integrated Amplifier
Best for: listeners wanting balanced inputs and high-res DAC
- Power Output
- 80W per channel
- Amplifier Class
- Class AB
- Audio Inputs
- TOSLINK, coaxial, USB, balanced XLR
- DAC Chip
- ESS ES9018K2M SABRE32
- Wireless Connectivity
- Bluetooth aptX HD
- Features
- Built-in DAC
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The Cambridge Audio CXA81 MkII is an 80-watt per channel integrated amplifier using Class AB amplification. It features an ESS ES9018K2M SABRE32 DAC for high-resolution digital-to-analog conversion. You get balanced XLR inputs, optical, coaxial, and USB digital connections, plus Bluetooth aptX HD. The toroidal transformer supports precise sound staging. This unit suits listeners who want reference-level conversion and robust power for demanding speakers.
Pros
- 80 watts per channel output
- ESS ES9018K2M SABRE32 DAC
- Balanced XLR inputs available
- Bluetooth aptX HD support
- Toroidal transformer design
Cons
- No remote control listed
- No app control mentioned
- Limited to stereo configuration
Good fit if
- You need balanced XLR inputs for premium gear
- You want high-resolution DAC performance
- You prefer Class AB amplification
Skip if
- You require a multi-room system
- You need a remote control
- You want a compact stereo receiver
Verdict: Cambridge Audio CXA81 MkII 80W Stereo Amp delivers reference-level digital conversion and ample power for serious stereo setups. It fits listeners who prioritize balanced inputs and high-resolution audio processing over smart features.
Specifications side by side
| Spec | Cambridge Audio CXA81 MkII Integrated Amplifier |
|---|---|
| Power Output | 80W per channel |
| Amplifier Class | Class AB |
| Audio Inputs | TOSLINK, coaxial, USB, balanced XLR |
| DAC Chip | ESS ES9018K2M SABRE32 |
| Wireless Connectivity | Bluetooth aptX HD |
| Connectivity | Bluetooth |
| Features | Built-in DAC |
| Color | Luna Grey |
| Model | C11310K |
Frequently asked questions
Does the Cambridge Audio CXA81 MkII have Bluetooth connectivity?
Yes, this integrated amplifier includes Bluetooth connectivity. This feature allows you to stream audio wirelessly from smartphones or tablets. It adds convenience for casual listening without needing physical cables. You can maintain a clean setup while still accessing your digital music library remotely.
What is the power output of this amplifier?
The Cambridge Audio CXA81 MkII delivers 80 watts per channel. This power rating is sufficient for driving most standard hi-fi speakers with ease. You will find it capable of handling dynamic musical passages without strain. It provides ample headroom for serious stereo setups.
Does the CXA81 MkII include a built-in DAC?
Yes, the unit features a built-in digital-to-analog converter. This allows you to connect digital sources directly, such as via TOSLINK, coaxial, or USB Audio inputs. It delivers reference-level digital conversion. You benefit from high-resolution audio processing without needing an external decoder.
What color options are available for this model?
The listing describes this integrated amplifier in Luna Grey. This finish is part of the specific model C11310K specification. The exterior uses a solid chassis construction to reduce unwanted vibrations. This rigid body ensures stable operation during high-volume listening sessions.
Is this device suitable for balanced audio inputs?
This amplifier is designed for listeners who prioritize balanced inputs. It supports high-resolution audio processing alongside these connections. This makes it ideal for serious stereo setups where signal integrity is key. You get balanced connectivity without sacrificing other essential features.
What type of amplification does the CXA81 MkII use?
The unit employs Class AB amplification technology. This method is known for delivering high-fidelity sound with low distortion. It works in conjunction with the 80-watt per channel output. You receive a warm, detailed audio signature suitable for critical listening.