Class A or Class D solid-state amplifiers (modern designs)

+1 for the LSA Voyager GaN 350.

It is very chameleon like. Lovely oldies like Ella and Louie, Leonard Cohen sound full bodied rich and in the room. Lessor recordings sound, well, Lessor. Great value MSRP $3000, a veritable bargain compared to many class A or A/B amps whose MSRP are multiples

Sound improved considerably by replacing stock footers with Nobsound springs @ ~ $35/4. Now under all my kit, including speakers

Ck out the Jeff Rowland Design Model 125.

My previous amps were all class A mono blocks from Krell and BAT, then I switched to PS Audio M1200 and couldn’t be happier. They sounded great and are cheaper than my previous amps. 

another +1 for the LSA Voyager GaN 350

My friend asked for a recommendation to replace his Cambridge amplifier, traded it in for the LSA Voyager and thank goodness it was so much better.

I'll most likely go to GaN myself, just going to let designers play with it some more. I read with interest on the Atmosphere monos but my speakers are a little thirsty, and I'm running 2 x 400watt (not that I run them at 100%) at the mo.

Bel Canto e One REF501S is very nice class d and very affordable.