Let's talk about this, would like to know more how Class D evolved over the years and who are the manufacturers that are on the vanguard fo design of this amplification topology...@cosmicjazz Class D is an analog process. People confuse it with digital because of the D, but class D was first proposed in the vacuum tube era (late 50s IIRC).
Oh.. Class D analog, Class D digital... never found a consensus, if Class D can be analog to..
The sound of any amp is governed by distortion and all amps make audible distortion. Solid state makes low amounts but its all higher ordered stuff to which the ear is keenly sensitive. That is what causes them to be bright and harsh. Tubes tend to make lower orders to which the ear is far more tolerant- this is why they sound 'warmer'. Class D can be either- a lot depends on the design. I favor circuits that use Pulse Width Modulation and zero feedback- they tend to favor lower ordered harmonics- more like tubes. There are a number of such products on the market right now- Merrill and Technics come to mind. We're working on a class D which is built around those concepts as well.