Class D amps that are superior to all or most?


Recently, I have heard about some Class D amps that may be close to the best there is regardless of class. Certainly, this technology has been in development for decades. The main issue has always been the switching power supply. In this regard, I have taken notice of AGD. They have created a whole new power supply that “switches” at a frequency 100 times the normal silicon based MOSFET. The designer uses a gallium nitride based PS. Interesting, it is enclosed in the KT88 glass envelope that sits on top of his amps. I am aware of two more pricey amps that seem to be also at the top- the Solution and the Merrill. There must be others that compete for the title. After my thread, “Is there a SS amp that can satisfy a SET guy?”, I am still on the quest.
Don’t want to spend $50K!
mglik
I am really glad the Audion’s are rocking a lot of people. What we need is a cheaper version and alternative lower priced competition. If AGD put all the circuits in one box and got rid of the silly tube thang they could sell a dual mono single chassis amp for half the price. We have GaN amps from LSA now and coming soon GaN amps from Wyred for Sound and Mytek. Let’s see if some of them can compete with the tuberators.....and for less money. Fun time ahead.
Anybody remember Paul Grzybek and his Tube Audio Design line of gear? The one I had was the TAD-60 with EL-34 tubes, bias and feedback adjustment.

He got those from China back when Prima Luna was starting to make a name for itself and dueling with another company who made the same product. This was just as they were becoming established. Paul sold the same units as they did but his were modded.

Paul would buy the units, mod them so you could do the bias without having to open it up, and threw in a feedback knob of his own design so you could tailor it to your own liking.

It was my only venture into tubes but it was great for what it did and there are times when I miss it. Yes, people have been modding for decades.

All the best,
Nonoise
Try the Sim audio 860a version 2 very warm and natural sounding solid state amp.