Arcam SA20 Integrated Amplifier




Arcam's SA20 is a Class G integrated amplifier, meaning it is essentially a hybrid amplifier, using Class A specifically for low-level signals, but when required switching in an additional power supply to power those larger sections of the waveform.

Class A amplification is the traditional audiophile’s choice, and uses a single power supply constantly running at full capacity, even when there’s no signal coming through. This means it is good for reproducing subtle musical details at low levels, but it struggles to provide extreme power when needed.

Class A/B is the most common amplification class, and switches between the two internal amplifiers, one for each half of the waveform. Far more efficient but often a recipe for crossover distortion, since those low-level details we crave can get lost within any mis-match between the two switching over.

Key Features

  • Class G amplification for impeccable sound and efficiency
  • 90W of power per channel
  • 5 analogue inputs including phono
  • 3 digital inputs

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