Cambridge Audio CXA81 Mk II Integrated Stereo Amplifier Review

Introduction

Cambridge Audio has long established itself as a purveyor of high-fidelity audio products, consistently delivering equipment that strikes a fine balance between performance and value. The integrated amplifier space, teeming with contenders, is a segment where Cambridge Audio's CXA81 Mk II seeks to carve out its niche. This successor to the acclaimed CXA81 aims to enhance the listening experience for audiophiles and casual listeners alike.

Design and Build Quality

Exterior Design

The CXA81 Mk II maintains Cambridge Audio's minimalist yet functional design ethos. The chassis exudes a sleek and modern appeal, with a brushed metal finish that should blend seamlessly with a variety of home theater setups. Although it doesn't deviate significantly from its predecessor in terms of external design, the amplifier feels robust and meticulously crafted. The layout of inputs and outputs is intuitive, albeit with reversed speaker outputs that could be a minor inconvenience during setup. At 8.7 kg, it has a reassuring heft, indicative of quality internal components.

Internal Components

Internally, the CXA81 Mk II boasts a raft of premium components. The amplifier's analog signal path and power supply have been refined, which should translate to a cleaner, more dynamic power delivery. The attention to component quality suggests a device that not only performs well but is also built to last.

Features

Power and Compatibility

With its 80W RMS into 8 Ohms and 120W RMS into 4 Ohms, the CXA81 Mk II is adept at driving a wide range of speakers. Whether you have floor standers that require a bit more grunt or bookshelf speakers that benefit from finesse, this amplifier is up to the task.

Digital-to-Analog Conversion

The inclusion of the ESS ES9018K2M SABRE32 DAC is a significant upgrade. This high-end DAC chip supports high-resolution audio formats up to 32-bit/384kHz and DSD256, enabling the CXA81 Mk II to deliver a level of sonic clarity and detail that can be revelatory.

Connectivity Options

Cambridge Audio has generously equipped the CXA81 Mk II with a plethora of connectivity options. The inclusion of balanced XLR inputs is a welcome feature, often reserved for higher-end amplifiers. The Bluetooth with aptX HD codec support is a nod to modern listening habits, though the absence of a phono stage might leave vinyl enthusiasts needing an external solution.

Additional Functionalities

The ability to run two pairs of speakers is a boon for those looking to power multiple rooms or zones. However, the lack of tone controls could be seen as a double-edged sword; purists will appreciate the signal path's integrity, while others may miss the ability to tailor the sound to their liking.

Performance

Audio Quality

The CXA81 Mk II's sound quality is exemplary. The new DAC chip provides a noticeable improvement in sonic resolution from digital sources. Listening tests reveal a sound that is detailed and nuanced, with a balanced soundstage that should satisfy even discerning ears. When compared to competitors in its price bracket, the CXA81 Mk II holds its own, offering a compelling blend of warmth and detail.

Power Efficiency

The maximum power consumption of 750W might raise eyebrows, but it is commensurate with the amplifier's robust output. In real-world usage, the CXA81 Mk II is efficient, only drawing significant power during demanding passages.

Bluetooth Performance

The integrated Bluetooth functionality performs admirably, with the aptX HD codec ensuring that wireless audio transmission retains a high level of fidelity. While some audiophiles may have reservations about wireless audio, most users will find the convenience and quality more than satisfactory.

User Experience

Setup and Usability

The CXA81 Mk II is straightforward to set up, with clear labeling and a logical arrangement of inputs and outputs. The user interface is uncluttered, allowing users to focus on the listening experience rather than the operation of the device.

Headphone Output

The headphone output is robust, though the relatively high output impedance may not be ideal for all headphones, particularly those with lower impedance. Users should ensure their headphones are compatible to get the best experience.

Final Thoughts

The Cambridge Audio CXA81 Mk II stands out for its combination of power, clarity, and connectivity. It provides a sound that is both engaging and faithful to the source material. The unit's versatility and the quality of its internal components make it a strong contender in its price range. While it may not cater to every niche (such as vinyl enthusiasts without a separate phono preamp), for most users, the CXA81 Mk II represents a savvy investment that will elevate their home audio experience. Whether you're a seasoned audiophile or someone looking to delve deeper into high-fidelity audio, the CXA81 Mk II deserves your consideration.