GaN operates at a much higher switching frequency and allows for less noise, higher efficiency and less distortion. There are quite a few Class D types out there and each has its own "sound" based on the designer and the quality of the output filter. A lot of Class D has a very neutral sound, for example the 3255 adds no distinct flavor at all. I find GaN to be a bit more easy on the ears and a bit more musical. Of course you can add to this with tubes in the input stage even direct heated triodes (DHT). https://quarkhifi.com/products/master-series-dht-gan-fet-hybrid-amplifier-300wpc
GaN FET Amps vs. Traditional Class D Amps
I'm trying to get a better understanding of GaN FET amplifier technology. Whenever I see a write up on GaN FET based amplifiers they are always compared against class A or class A/B amps. What I'm more interested in is how they compare to the current generation of 'traditional' class D designed amplifiers, both technically and sonically. Can anyone explain it to me?
Thank you.