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

Showing 1 response by desktopguy

+1 to jjss49’s comment about Wyred 4 Sound. I have the ST-500 in my desktop system, and it has worked with synergy and real impact powering some excellent 2-ways (Aerial Acoustics 5Bs; ATC SCM12 Pro’s; and now the vintage/beautiful-sounding KEF 103.2’s).

I do all listening in the nearfield position with the Violectric V281 (very nice sound) as preamp. There is nowhere for a bad-sounding amp to hide in this setup: it either works or fails audibly. The ST-500 works extremely well here. And it does something subtle that tells me it’s an above average amp: whatever its inherent sound is, it takes a back seat to the inherent sound of the speakers. This quality of being self-effacing, in service of the chain, is one I value highly.

My impression of the inherent sound of the ST-500 is top-to-bottom smoothness, power, music-first. Not a flash-bang, in-your-face sound at all. Never bright. But when a crescendo comes along, get ready for G forces (very powerful amp). All in all, it’s a consistently suave, relaxed "take" on SS sound.