Arcam SA20 Integrated Amplifier
The Arcam SA20 is an integrated amplifier that improves upon the performance of the Arcam A29. This integrated amplifier has been rated at 80wpc into 8 ohms, delivering just under 20wpc in pure Class A amplification. This amplifier also allows for huge power reserves for even the largest of and most demanding of loudspeakers.
The Arcam SA20 Integrated Amplifier features 5 analogue inputs (1x line/MM switchable), and 3 digital inputs that are supplied by the ESS Sabre 9038 reference Digital-to-Analogue Converter (DAC) – as employed by the irDAC2. A brand new learning backlit infrared handset is provided, and the SA20 can also be controlled over IP through the Arcam iOS app, Musiclife, or RS232.
Why Class G in the Arcam SA20 Integrated Amplifier?
There are two frequent problems with hi-fi amplifiers. 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. Great for reproducing those subtle details at low levels however struggles to provide extreme power when needed.
Class A/B, the most common amp class, 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.
Class G 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.
Main Features of the Arcam SA20 Integrated Amplifier
- Class G amplification for impeccable sound and efficiency
- 90W of power per channel
- 5 analogue inputs including phono
- 3 digital inputs
- 32-bit DAC,Sabre ESS9038K2M
- Full I/P control
- Total harmonic distortion + noise = 0.003%