Chord Electronics BerTTi 75W Stereo Power Amplifier



IMPORTANT: Due to contractual limitations imposed by Chord Electronics, Audio Sanctuary are currently unable to ship this product. Customers in the UK are able to Click + Collect, or purchase in-person from our London showroom. Please contact us for more information.

The Chord Electronics BerTTi is a fully balanced 75-watt stereo power amplifier benefitting from the latest ULTIMA dual-feed-forward topology.

Released September 2023, BerTTi is the most affordable ULTIMA-technology stereo power amplifier in the Chord portfolio, bringing next-generation ULTIMA topology to their ground-breaking Table Top (TT) range.

Extending the range of ULTIMA-technology Chord Electronics amplifiers, BerTTi makes full use of advanced error-correction technology which monitors and immediately corrects signals before the output stage for astonishing accuracy and unrivalled fidelity from a compact-chassis device.

BerTTi features both balanced and unbalanced inputs, high-quality gold-plated loudspeaker outputs, plus a 10 A IEC power inlet. Further features include two modified power supplies for increased performance, plus an additional auxiliary power rail for the front end, which provides extra voltage to drive the custom-made MOSFETs.

British-built, BerTTi brings the next-generation ULTIMA topology to the ground-breaking Table Top (TT) range. When combined with the resolving power of the award-winning Hugo TT2 DAC/preamp, the duo offers new levels of sonic performance from a small system.

Further, the addition of the Chord Hugo M-Scaler upscaler - with the ability to upscale audio to 705.6 kHz, 16x CD’s native resolution - makes the three-box system truly class-leading.

BerTTi’s sleek metalwork is precision-machined from solid aircraft-grade aluminium and is available in a choice of Jett Black or Argent Silver finishes.


  • Inputs: 1 x Pair of Balanced XLRs, 1 x Pair of gold-plated Unbalanced RCAs.
  • Outputs: 1 x Pair of gold-plated speaker terminals.
  • Trickle down ULTIMA technology.
  • Fully balanced system.
  • HF switch mode power supply.
  • Proprietary MOSFET.
  • Compact design.
  • Solid aircraft-grade aluminium chassis.


  • Output Power: 75 W into 8 Ω
  • Frequency Range: 5 Hz-100 kHz +/- 0.5 dB
  • THD: 0.008 %
  • Signal-to-Noise Ratio: 87 dB (A-weighted)
  • Input Impedance: 100 kΩ Unbalanced/Balanced
  • Input impedance: 0.78 V
  • Gain: 30 dB
  • Dimensions: 59 mm (H) 235 mm (W) 256 mm (D)
  • Weight: 3.75 kG


  • Chord Electronics BerTTi.
  • Quickstart guide.
  • Safety instructions.
  • 10 A Mains IEC cable.

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