Arcam SA20 Integrated Amplifier


Trade-in available

The SA20 is a premium Class G Integrated Amplifier from Arcam.

Part of their acclaimed HDA range, SA20 draws upon all of Arcam’s experience as one of the UK’s most respected audio companies, designed and built to give you years of listening enjoyment.




Two common problems can arise with hi-fi amplifiers, based on the choice of amplification class.

Class A (the traditional audiophile’s choice) uses a single power supply constantly running at full capacity, even when there’s no signal coming through. Whilst this is great for reproducing subtle details at low levels, this kind of system can struggle to deliver extreme power when needed.

Class A/B (the most common amplification class) instead switches between TWO internal amplifiers, one for each half of the audio waveform. This is far more efficient but often a recipe for crossover distortion, as low-level details may get lost within any mis-match where the two amplifiers switch over.

Class G amplifiers solve these problems in a very elegant manner. Essentially the Arcam SA20 is a hybrid amp which utilises Class A specifically for low-level signals, then switches in an additional power supply to drive those larger sections of the waveform, as & when needed. Very neat.


  • Class G amplification for impeccable sound and efficiency
  • 90W of power per-channel
  • Continuous power per-channel (both channels) 80W
  • Continuous power per-channel (one channel) 176W
  • Class A output to 12W
  • x5 analogue inputs including phono (x1 line/MM switchable)
  • x3 digital inputs (x2 SPDIF, x1 Optical)
  • 32-bit DAC (Sabre ESS9038K2M)
  • Full I/P control
  • Total harmonic distortion + noise = 0.003%

More Information



Arcam have developed a world-class reputation for making some of the best-sounding AV electronics. Starting with amplifiers over forty years ago, the company moved into CD player technology a decade later, and then pushed further into home cinema electronics.

The brand have now developed their own DVD and Blu-Ray players, engineered using decades of CD experience to ensure they play music as well as they do movies, thus delivering better all-round performance than many other brands.

Arcam | Unilet Sound & Vision

Additional information

Weight 11.1 kg
Dimensions 42 × 55 × 19.5 cm


Purchase Options

Click & Collect, Trade-In Available


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