Cambridge Audio Evo 300 Streaming Amplifier-Their Most Powerful Yet!

Back in 2023, Gene DellaSala took a deep dive into Cambridge Audio’s stylish Evo platform with his comprehensive review of the Evo 150, praising its blend of premium industrial design, excellent streaming capabilities, and impressive measured performance. Now Cambridge Audio is taking that formula to its logical extreme with the all-new Evo 300, a $3,999 streaming amplifier that doubles the power output of its predecessor while adding a host of performance-oriented upgrades aimed at demanding loudspeakers and larger listening spaces.

Cambridge Audio Evo 300  New Features

Cambridge Audio describes the Evo 300 as its “most powerful streaming amplifier yet,” and based on the specifications, that claim appears well-founded. Delivering 300 watts/ch into 8-ohms, 550 watts/ch into 4-ohms (both channels driven) via Hypex NCOREx Class D amplification, the Evo 300 is designed to offer substantially more headroom and control than previous Evo models while maintaining the compact all-in-one form factor that helped make the series so popular.

Hypex NCOREx Meets Dual-Mono Architecture

At the heart of the Evo 300 is a significant redesign of the amplifier section. Cambridge Audio has moved to Hypex NCOREx amplifier modules and paired them with a dual-mono layout intended to maximize channel separation and imaging precision. According to Cambridge Audio, the amplifier incorporates a balanced preamplifier stage and dedicated high-precision analog volume controls for each channel to help preserve stereo focus, dynamic range, and low-level detail.

The company says the Evo 300 was engineered to deliver “effortless headroom, deep control, stable imaging, strong separation and a sound that stays composed as music becomes more demanding.” While we'll reserve judgment until measurements and listening tests are available, the combination of NCOREx modules, balanced circuitry, and 300 watts per channel certainly suggests serious performance potential.

StreamMagic Continues to Evolve

Cambridge's proprietary StreamMagic platform remains the centerpiece of the user experience. The latest fourth-generation implementation supports Spotify Connect, TIDAL Connect, Amazon Music, Deezer, Qobuz Connect, Roon Ready certification, UPnP streaming, and Internet Radio over Wi-Fi or Ethernet. Cambridge notes that because StreamMagic is developed entirely in-house, it continues receiving regular feature updates and enhancements.

The Evo 300 also supports AirPlay 2, Google Cast, Google Home integration, and Roon multi-room systems, making it easy to integrate into a modern whole-home audio ecosystem. Bluetooth 5.4 with aptX HD is onboard for casual wireless listening.

ESS Sabre DAC and Comprehensive Connectivity

Digital conversion duties are handled by the ESS Sabre ES9038Q2M DAC, supporting PCM playback up to 32-bit/768kHz and DSD512. Cambridge claims the Evo 300 preserves digital signals without resampling from source to conversion, providing what the company calls "bit-perfect digital sound reproduction."

Connectivity is extensive. Digital inputs include USB Audio, USB Media, optical, coaxial, HDMI eARC, and the Evo CD connection. Analog users get both RCA and balanced XLR inputs, while vinyl enthusiasts will appreciate the built-in moving-magnet phono stage. A dedicated subwoofer output offers independent crossover and level controls, and optional high-pass filtering for the main speakers—a feature many audiophiles have been requesting from modern integrated amplifiers.

Larger Display, Same Premium Design Philosophy

While the Evo series has always prioritized industrial design, Cambridge appears to be taking things a step further with the Evo 300. The amplifier features a wider chassis, interchangeable side panels, and what Cambridge calls its “largest display ever,” measuring 7.8 inches diagonally. The screen can display album artwork, system information, clocks, or animated VU meters.

Like the music it's built for, Evo 300 is designed to be timeless, visually, sonically and emotionally.

--Cambridge Audio

What we think of the Cambridge Audio Evo 300...

On paper, the Evo 300 looks like a substantial evolution rather than a simple refresh of the Evo 150 platform. The jump from 150 watts to 300 watts per channel is the headline upgrade, but the addition of Hypex NCOREx amplification, a fully balanced preamp stage, dual-mono architecture, balanced XLR inputs, independent subwoofer crossover controls, Bluetooth 5.4, and a larger display suggest Cambridge Audio re-engineered nearly every critical performance area.

Compared to the Evo 150, the Evo 300 appears aimed squarely at enthusiasts who love the Evo concept but need more power for difficult speaker loads and larger rooms. It also enters an increasingly competitive premium streaming amplifier market that includes products such as NAD's Masters Series M33 V2 streaming amplifier. What separates the Evo 300 is its combination of compact industrial design, extensive streaming support, serious amplifier power, and a feature set that bridges lifestyle convenience with genuine audiophile aspirations.

If Cambridge Audio can deliver measured performance that matches the ambitious specifications, the Evo 300 could become one of the most compelling premium streaming amplifiers we've seen to date.

The Cambridge Audio Evo 300 will be available beginning in June 2026 through authorized dealers and Cambridge Audio's direct sales channels. U.S. pricing is set at $3,999.

Unless otherwise indicated, this is a preview article for the featured product. A formal review may or may not follow in the future.