Edge A

Integrated Amplifier

  • Built to celebrate musicality – Our most detailed integrated amplifier.
  • Hand-picked components – hours of listening to select only those that sound the best.
  • Twin Toroidal Transformers – huge reserves of power for consistent tonality.
  • Cambridge Audio proprietary Class XA Amplification - no audible crossover distortion.
  • Ready for digital – built-in DAC with digital inputs including TV ARC and Bluetooth aptX HD.
  • Edge A Hero

    Our Most Detailed Integrated Amplifier

    Edge A is made to celebrate musicality. Riffs, phrases, percussive rolls – take in every detail of your music thanks to its dynamic setup. Effortlessly powerful, but with incredible depth, the overall sound is breath-taking – like you’re sat in the recording booth with the musicians.

    • what hi-fi 5 stars logo

      "At this price, we can’t think of a more complete alternative than the Edge A. Cambridge has done a terrific job."

      May 2020
    • stereophile logo

      “a sonic powerhouse”

      April 2022
    • ecoustics logo

      "the amplifier just does everything you ask of it with finesse, a huge soundstage, and surprising amount of warmth.”

      April 2022
    • gear patrol logo

      "If you were to build out the perfect hi-fi system for your dream house, this amplifier would probably be at its heart"

      December 2018
      Edge A Integrated Amplifier

      Breathtaking Musicality

      Edge A is designed to bring musical detail to life. It delivers a finely balanced sound with a depth and clarity that come through with every note. We developed the system by ear, testing every component and only choosing those that blew us away. The end result is a ground-breaking arrangement that produces a much cleaner signal path and lets your music breathe. Edge A perfectly delivers our classic British sound – nothing added, nothing taken away.

      Edge A Integrated Amplifier dark close-up

      More Musical Detail

      We pioneered the use of toroidal transformers in amplifiers, which led to improved performance. In Edge we take this one step further, using opposing symmetry twin toroidal transformers. This cancels out electromagnetic interference whilst offering outstanding power and maintaining consistent tonality, no matter how loud it’s played.


      Effortless Power Without Distortion

      Using standard Class A amplifier technology wasn’t going to be efficient enough for Edge A. Instead we added a bias voltage to a traditional Class AB design, reducing distortion to inaudible levels. This unique configuration also produces less heat and makes the whole system much more effective.


      Hi-Res Bluetooth

      Pair any Bluetooth device to your Edge A to easily stream your music. With aptX HD support, you can play your audio at up to 24-bit/48kHz quality for an incredibly rich listening experience.

      Edge A Integrated Amplifier

      Sonic Balance

      Edge A was designed with a unique PCB. Our engineers replaced conventional capacitors with a DC coupled topology and also added a solid-state volume control. The end result is a clean signal path that’s perfectly balanced at any volume.

      Edge A Integrated Amplifier, laptop and guitar

      Perfect Partners

      Edge systems are designed to work in perfect synchronisation. Match the performance of Edge A with loudspeakers to make the foundations of a hi-fi system unlike anything else.

    • Press reviews

      • SUPER AV AWARDS 影音極品器材大賞


        Outstanding Overall Performance Awards 2018 – Integrated Amplifier

        綜合實力獎 2018 - 電晶體解碼合併效大器

      • AVTech Media

        United Kingdom,


        '[W]hat really gives this integrated amp ‘the edge’ over its rivals is its compelling music delivery. Mixing room-shaking prowess with effortless purity, it’s nothing short of a marvel at the price.'

      • VGP 2019


        VGP 2019 Pure Audio 新細明體特別大賞 – Integrated Amplifier

      • Secrets of Home Theater and High Fidelity

        United States,

        “While the integrated amplifier market gets ever more crowded, the Cambridge Audio Edge A stands out with its stunning good looks and equally lush sound quality.”

      • The Ear

        United Kingdom,

        'From the very moment it touched down on my doorstep, something told me that the hefty Edge A integrated amp was going to be something very special indeed.'

      • Hi-Fi +

        United Kingdom,

        '[Edge A is a] stunning new integrated amplifier. Cambridge Audio has long held the reputation of making affordable giant killers. In its 50th year, it made its own giant, and even that is still a giant killer in its own right.'

      • Gear Patrol

        United States,

        'Cambridge Audio's most powerful and detailed integrated amplifier ever...'

        '...If you were to build out the perfect hi-fi system for your dream house, this amplifier would probably be at its heart.'

      • Financial Times - How To Spend It

        United Kingdom,

        'If I were in the market for an amp to enlighten these dark winter nights, this would be my choice.'

      • ModernHiFi.de


        Score: 9.7/10

        '50 years of Cambridge Audio, [and] it was worth waiting for this amplifier. With the Edge A, the British brand once again prove their outstanding expertise for high-class audio technology at an unrivalled price point.'

      • Stereophile

        United States,

        'I've reviewed many integrated amplifiers for Stereophile.....none provided me with as much simple, exuberant, at times jaw-dropping fun as Cambridge Audio's Edge A.'

      • Audio Magazine


        '[It's] impossible not to be fascinated by the Cambridge Edge A... Cambridge Audio [has] set a benchmark... Excellent measurements demonstrate that the developers (whose signatures are to be found on the circuit boards) have done a brillant job...'

      • STEREO


        'Cambridge Audio make themselves and their fans a birthday present and release the best amplifier ever developed by the British company: musical, vivid and extremely dynamic.'

      • Personal Audio

        Hong Kong SAR China,

        「Cambridge Audio 的音響故事始於 1968 年,來到 2018 年,意味着品牌迎接五十週年,新旗艦 Edge 系列成為最佳賀禮,回望品牌根源,向創辦人之一的 Gordon Edge 致敬,再展望下一個五十年。之前在不同場合聽過 Edge NQ 串流前級、Edge W 後級推動 B&W 803 D2,新旗艦的聲音的確超越 Cambridge Audio 以往產品,而且幅度頗大。因此,在試聽 Edge A 合併機前,還以為可以預計它有何等表現,結果是出乎意料,被它直接打臉!」

      • Lowbeats.de


        Rating: Outstanding | Score: 4.7/5

        'The workmanship, the equipment concept, the sound - it's all well thought out, so valuable, so lovingly implemented that I can't help but like this amplifier from the bottom of my heart..'

        Customer Reviews

      • The details

        Continuous power output 100W RMS into 8 Ohms; 200W RMS into 4 Ohms
        THD (unweighted) <0.002% 1kHz at rated power (8 Ohms); <0.02% 20Hz – 20kHz at rated power (8 Ohms)
        Frequency response <3Hz – >80kHz +/-1dB
        S/N ratio (ref full power) >103 dB
        Crosstalk @ 1kHz < -100dB
        Input sensitivity Input A1-A2 (unbalanced) 380mV RMS
        Input impedances Input A3 (balanced) 47k Ohm; Input A1-A2 (unbalanced) 47k Ohm
        Inputs Balanced, Coax S/PDIF, TOSLINK, USB Audio, Unbalanced, Bluetooth, Audio Return Channel (ARC)
        Outputs Speakers, Preamplifier, Headphones (impedance of between 12 and 600 ohms are recommended)
        USB audio input USB Audio Class 2.0 supporting up to 24-bit 384kHz PCM, or up to DSD256
        Bluetooth 4.1 (Smart/BLE enabled) A2DP/AVRCP supporting formats up to aptX HD
        TOSLINK input 16/24 bits, 32-96kHz
        Coax S/PDIF input 16/24 bits, 32-192kHz
        Max power consumption 1000W
        Standby power consumption <0.5W
        Dimensions 150 x 460 x 405mm (5.9 x 18.1 x 15.9")
        Weight 24.4kg (53.7lbs)
        In the box Edge A Integrated Amplifier; 1.5M Power Lead; Edge Remote Control; 3 x AAA Batteries; Bluetooth Antenna; Edge Link Cable; Edge A User Manual