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Chord Electronics

Chord BerTTi Stereo Power Amplifier

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

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ULTIMA Technology

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.

Power In, Power Out

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.

Pair With Hugo TT 2

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 TT 2 DAC/preamp, the duo offers new levels of sonic performance from a small system. The addition of the 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.

Highest Quality Materials

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


  • ULTIMA Technology
  • Fully Balanced System
  • HF Switch Mode Power Supply
  • Proprietary MOSFET
  • Compact Design
  • Solid Aluminum Chassis


XLR Input
1x Stereo Pair of Balanced XLRs

RCA Input
1x Stereo Pair of Gold-Plated Unbalanced RCA

1x Pair of Gold-Plated Speaker Terminals

59mm (H) x 235mm (W) x 256mm (D)


Specs (cont)

Output Power
75 W into 8 Ohms

Frequency Range
5 Hz - 100kHz +/- 0.5dB


Signal-to-Noise Ratio
87dB (A-weighted)

Input Impedance


Bertti Stack

About Chord Electronics

Chord Electronics have been producing cutting-edge digital-to-analog converters (DACs) and amplifiers, using innovative techniques and methods, since their founding in England in 1989.