ARCAM SA20 Integrated Amplifier


The SA20 with Class G technology, is essentially a hybrid amplifier, utilising Class A specifically for low-level signals, but when required switching in an additional power supply to power those larger sections of the waveform.

The SA20 provides a massive 80wpc into 8 ohms (both channels driven), allowing for huge extra power reserves for the most demanding of loudspeakers.
This ground breaking amplifier is an absolute must for those seeking true excellence in an amplifier at an incredibly affordable price.

  • Class G amplification for impeccable sound and efficiency
  • 5 analogue inputs including phono
  • 3 digital inputs
  • 32-bit DAC,Sabre ESS9038K2M
  • Full I/P control
  • Both channels, 8Ω, 20Hz—20kHz: 90W
  • Single channel, 4Ω, at 1kHz: 150W
  • Harmonic distortion, 80% power, 8Ω at 1kHz: 0.002%


Phono (MM) Inputs

  • Input sensitivity at 1kHz: 5mV
  • Input impedance: 47kΩ + 100pF
  • Frequency response (ref. RIAA curve): 20Hz—20kHz ± 1dB
  • Signal/Noise ratio (Awtd) 50W, ref. 5mV input: 80dB
  • Overload margin, ref. 5mV at 1kHz: 21dB

Line Inputs

  • Nominal sensitivity: 1V
  • Input impedance: 10kΩ
  • Maximum input: 6Vrms
  • Frequency response: 20Hz—20kHz ± 0.2dB
  • Signal/noise ratio (Awtd) 50W, ref. 1V input: 106dB

Digital Inputs

  • DAC: ESS9038K2M
  • Frequency response: 20Hz – 20kHz ± 0.05dB
  • Total harmonics distortion + Noise: 0.0007%
  • Signal/Noise ratio (A-wtd): 115dB
  • Digital input connections: Optical 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz;  Coaxial 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz
  • Bit depth: 16-bit – 24-bit

Pre-amplifier Output

  • Nominal output level: 630mV
  • Output impedance: 230Ω

Headphone Output

  • Maximum output level into 600Ω: 5Vrms
  • Output impedance: 1Ω
  • Load range: 16Ω—2kΩ


  • Mains voltage: 110–120V or 220–240V, 50–60Hz
  • Power consumption (maximum): 500W
  • Dimensions W x H x D: 433 x 87 x 323 mm (includes feet, control knob and speaker terminals)
  • Weight (net): 9.2kg
  • Weight (packed): 11.1kg

Supplied Accessories

  • Mains leads
  • Remote Control
  • 2 x AAA batteries
Additional Information
Weight 9.2 kg
Dimensions (DxWxH) 275 × 433 × 85 mm