Beyond Ayre Pass and Rowland

One more for the Wells Audio Innanorata or the Innamorata Signature.
Fabulous sounding amp. 

So, the best solution could be a custom amp for particular speakers, and I mean for a particular pair of speakers.

Very occasionally. Usually we see speakers built for a particular amp. But if we were a speaker manufacturer it might be the other way 'round.

So I did some youtube 'auditioning' of the amps mentioned here, not all though. The only SS amps that I liked were Gryphon - deep dark powerful sound reaching subterranian regions. Hybrids - Ypsilon and Absolare followed by Lamm. Tube - Lamm SET.
Not impressed by Vitus or Swiss brands. Kondo has excellent tone but no drive or bass. MBL okay.
Will tryTenor, Wavac etc. too.
Best speaker so far - Lansche. Ypsilon/Lansche system is spectacular.
Very different, but Absolar/Rockport is very impressive too - big forcefull powerful sound, perfect for certain types of music.
I'll try to find another SS  to join this company, for now no luck.

Any love for older Krell integrated amps?  Say, the 300/400 series models?