Cambridge Audio CXA81 Integrated Stereo Amplifier Review

Introduction

Cambridge Audio has long been synonymous with high-fidelity audio products that cater to audiophiles and music enthusiasts alike. With a legacy of crafting pure, natural sound, the brand's commitment to audio excellence is evident in its product lineup. The CXA81, positioned as a mid-to-high-end integrated stereo amplifier, aims to uphold this tradition by delivering pristine sound quality and a host of features designed to satisfy discerning listeners. In today's market, where digital convenience often intersects with analog performance, the CXA81 seeks to bridge the gap, offering a compelling blend of traditional audiophile virtues and modern connectivity.

Design

Aesthetics and Build Quality

The CXA81 sports an elegant, minimalistic design, with a sleek front panel that exudes a sense of sophistication. Crafted from robust aluminum and steel, the unit strikes an impressive figure that is both aesthetically pleasing and durable. The quality of craftsmanship is apparent, with no detail overlooked, from the precision-machined knobs to the robust chassis that promises longevity.

Ergonomics

The front panel layout is intuitive, with a clear and accessible arrangement of controls that make daily operation a breeze. The volume knob, with its satisfying tactile feedback, is a testament to Cambridge Audio's attention to the user experience. The included remote control complements the amplifier with its thoughtful design, providing a convenient way to adjust settings from across the room.

Features

The CXA81 is not just a pretty face; it's packed with features that make it a versatile centerpiece for any home audio system.

Power and Compatibility

Boasting 80W RMS per channel into 8 Ohms and an impressive 120W RMS into 4 Ohms, the CXA81 has the muscle to drive a wide range of speakers, from bookshelves to floor-standers. The ability to connect a second set of speakers for multi-room listening further showcases its flexibility, making it a powerhouse for those who value both power and finesse in their audio setup.

Digital-to-Analog Conversion

At the heart of its digital prowess is the ESS Sabre ES9016K2M DAC, a state-of-the-art component known for its exceptional signal-to-noise ratio and minimal distortion. This ensures that high-resolution audio files are rendered with utmost precision, delivering a listening experience that is both immersive and emotionally impactful.

Connectivity

The CXA81's array of connectivity options is a true highlight. Analog enthusiasts will appreciate the balanced XLR input and four RCA inputs, while digital users can take advantage of the coaxial, dual TOSLINK optical, and USB audio inputs. The integrated Bluetooth aptX HD receiver allows for high-quality wireless streaming, ensuring that convenience does not come at the expense of sound quality.

Additional Functionalities

As a Roon Tested device, the CXA81 promises a seamless experience with one of the most popular music management platforms. However, the absence of tone controls and a built-in phono stage may be seen as drawbacks for some users. Nevertheless, its standby power consumption of less than 0.5W is a nod to energy efficiency, which is an increasingly important consideration for modern electronics.

Performance

Sound Quality Assessment

The CXA81 delivers a sound that is transparent and detailed, with a frequency response that extends from below 5Hz to 60kHz. This wide range ensures that from the deepest bass to the highest treble, the sound remains faithful to the original recording. The initial brightness in the mids and highs, often reported, tends to mellow out after a break-in period, resulting in a sound that is nuanced and full of emotional impact.

Power Delivery

The amplifier's power delivery is smooth and authoritative, handling various speaker loads with ease. Its performance is consistent across genres, from the intricate details of classical music to the demanding dynamics of rock and jazz, making it a versatile choice for a broad spectrum of music lovers.

Soundstage and Separation

The CXA81 excels in creating a wide and deep soundstage, with excellent separation that allows each instrument to occupy its own space. This level of spatial reproduction is often found in amplifiers at higher price points, making the CXA81's performance particularly noteworthy.

DAC Performance

The onboard ESS Sabre DAC is a standout feature, providing digital-to-analog conversion that rivals standalone DACs in its price range. It brings out the subtleties in high-resolution audio files, ensuring that the digital listening experience is as close to the original as possible.

Bluetooth Performance

While the inclusion of Bluetooth aptX HD is commendable, users have reported issues with connectivity and reliability. When functioning properly, it offers a convenient and high-quality streaming option, but the inconsistencies can be a source of frustration.

Pros and Cons Breakdown

Pros:n- Detailed and nuanced sound quality with emotional impactn- High-resolution audio support with state-of-the-art DACn- Versatile connectivity options, including Bluetooth aptX HDn- Ability to connect a second set of speakers for multi-room listeningn- Quality build and elegant designn- Transparent sound with plenty of powern- Good value for the pricen- Great separation and soundstagen- Suitable for a wide range of speakers and music genres Cons:n- Brightness in mids and highs during initial usen- Lack of tone controls and built-in phono stagen- Oversensitive volume control with remoten- Potential issues with dynamic range music due to bright treblen- Bluetooth connectivity can be unreliable

Final Thoughts

The Cambridge Audio CXA81 stands as a testament to the brand's commitment to audio excellence. Its combination of sound quality, features, and design make it a compelling choice for anyone looking to upgrade their home audio system. While it has its quirks, such as the lack of tone controls and occasional Bluetooth hiccups, these are minor compared to the amplifier's overall performance and value proposition. In a market crowded with competitors, the CXA81 distinguishes itself as a versatile and refined option that is sure to delight both audiophiles and casual listeners alike.