+ 1 for the Krell 300i, it’s class A up to 90 watts which I would guess you will rarely if ever eclipse. I had the opportunity to demo the Krell, I owned a Coda CSiB, Primaluna Evo 400 integrated and at the same time demo’d the Krell 300xd Duo Amp (not an integrated unit). I landed on buying the 300xd Duo but that was purely because I wanted the flexibility of separates. The Krell XD line is incredible in my opinion, the drive, control is amazing but it has a touch of warmth, tubiness that is amazing as well. The 300i integrated, best integrated I have heard, hands down. Now the Coda, that was a close second but didn’t quite have that last bit of magic, but that is subjective. Luxman, Acuphase, Pass would be great choices as well. If you like a warmer presentation from your amps, less solid state out of your solid state but also like some of the benefits of tubes, you likely won’t find a better match than the Krell XD gear.
If you are aren’t dialed in specifically to the Class A’s sound signature, Hegel and Michi are outstanding SS pres’s. Mac’s should also make the list, some of their integrated will drive just about any separates.
I would ughly, highly recommend Coda as well and if you give them a call, they might Bias an integrated to pump out more Class A if you wanted. Their CSiB integrated is available with 3 different amplification options, higher class A but less overall top end or lower class A with higher overall output in class A/B. Coda might be the best engineered and quality parts brand that slides under the radar. Their equipment will stand against stuff costing many multiples, it isn’t cheap but the value is off the charts.
Happy Hunting!