Naim Nait XS2

[HungryHalibut]

The gentleman is wrong. See here, in the FAQ.

Are Naim power amplifiers Class A, Class B, or Class AB?

Naim amplifiers have been class AB for 50 years. FYI the class AB bias current is small, just enough to stop crossover distortion and not too much to cause the lesser known ‘gm-doubling’ distortion. For each new amplifier we measure an acceptable range on the bench. Then try each setting until it sounds best. Steve Sells, Technical Director (Electronics).