Cambridge Edge A Integrated Amp

Description

The Cambridge Edge A Integrated Amplifier represents the flagship of Cambridge Audio’s Edge series, developed to celebrate the company’s 50 years of audio engineering. Designed as a no-compromise integrated amplifier, the Edge A combines preamplification, power amplification, and a high-resolution DAC into a single chassis, offering a minimalist yet extremely high-performance solution for audiophiles.

At the heart of the Edge A is Cambridge Audio’s proprietary Class XA amplification, a unique topology that blends the sonic purity of Class A with the efficiency of Class AB. This design virtually eliminates crossover distortion while maintaining lower operating temperatures, resulting in a sound signature that is both clean and natural. The amplifier is engineered for musicality above all else—each component is selected and tuned “by ear” to ensure a highly engaging listening experience with exceptional tonal balance and clarity.

One of the most distinctive engineering features is its twin opposing toroidal transformers, mounted in a symmetrical configuration. This design cancels electromagnetic interference and provides consistent, stable power delivery across all listening levels. The result is effortless dynamics and a wide, controlled soundstage, even with demanding speakers.

The Edge A also incorporates a DC-coupled signal path, removing conventional capacitors from the audio chain to preserve signal purity and improve stereo imaging. Combined with a bespoke PCB layout and extremely short signal paths, this contributes to the amplifier’s reputation for transparency and detail retrieval.

In terms of connectivity, the Edge A is a modern hub for both analog and digital sources. It features a built-in high-resolution DAC supporting USB, coaxial, and optical inputs, along with Bluetooth aptX HD for wireless streaming. HDMI ARC capability further allows seamless integration with TVs, making it suitable for both dedicated hi-fi systems and premium living-room setups.

Aesthetically, the Edge A reflects its premium positioning with a minimalist industrial design, featuring a machined aluminum chassis, large central control dial, and distinctive heat-sink fins. Its build quality is substantial, weighing over 24 kg, reinforcing its status as a high-end component designed for long-term performance.

Overall, the Cambridge Edge A is positioned as a reference-level integrated amplifier that prioritizes sonic excellence, engineering innovation, and elegant simplicity—making it a centerpiece for serious audio systems.

Review Quotes

• “At this price, we can’t think of a more complete alternative.” — What Hi-Fi

• “A sonic powerhouse.” — Stereophile

• “Does everything with finesse… a huge soundstage and surprising warmth.” — eCoustics

• “This amplifier would probably be at the heart of your dream system.” — Gear Patrol

Key Specifications

• Power Output:

  • 100W RMS per channel (8Ω)

  • 200W RMS per channel (4Ω)

• Amplification Type: Class XA (proprietary hybrid design)

• THD:

  • <0.002% (1kHz, 8Ω)

  • <0.02% (20Hz–20kHz)

• Frequency Response: <3Hz – >80kHz (±1dB)

• Signal-to-Noise Ratio: >103 dB

• Inputs:

  • Balanced XLR

  • RCA (unbalanced)

  • USB Audio (up to 24-bit/384kHz, DSD256)

  • Coaxial & Optical digital

  • HDMI ARC

  • Bluetooth (aptX HD)

• Outputs:

  • Speaker terminals

  • Preamp out

  • Headphone output (12–600 ohms)

• Bluetooth: Version 4.1 with aptX HD

• Dimensions: 150 × 460 × 405 mm

• Weight: 24.4 kg (53.7 lbs)

• Power Consumption:

  • Max: 1000W

  • Standby: <0.5W