Indeed the class A stage can operate on it's own but it's not designed to. It's been done merely for demonstration purposes to 'prove' there's a fully functional class A stage which is in the "lead". Class A stage can be seen as the operator at the steering wheel and the class D stage is adding the power steering. This certainly should not be confused with the type of class A/AB amplifiers that can play up to 'x' watt in pure class A mode before switching to class AB operation.
A Devialet 400 can indeed output 6/8 * 400 = 300W per channel in 8 ohm.
A Devialet 400 can indeed output 6/8 * 400 = 300W per channel in 8 ohm.
PS Audio P3, Shunyata ΞTRON Alpha Digital and HC/Furutech power cables, Paul Hynes SR7EHD-MR4, DIY Roon Server & Roon Endpoint running AudioLinux Headless, Phasure Lush^2 USB cable, Audioquest Diamond RJ/E ethernet, Uptone Audio etherREGEN, Mutec MC-3+ USB, Shunyata ΞTRON Anaconda Digital XLR AES/EBU, Devialet Expert 250 Pro CI, Nordost Tyr Reference LS cables, Von Schweikert VR-5 SE Anniversary Edition, Anti-Mode Dual Core 2.0, JL Audio Fathom F112. More detail here.
The Netherlands
The Netherlands