What is the best solid state amplifier you have ever heard?

Levinson 23.5I use the amp to power Tympani 1-D's.Previously, I listened to a JBL Hartsfield / Marantz 8b combo daily for years.  When I purchased the 23.5, I swapped it for the 8b and was shocked to hear that it was just as warm and musical, but had even more bass control.  I've owned the 23.5 twice now... I lust for 20.6's!

I’ve had Krell KMA-160’s and Pass 250’s (I think those were the ones) and now have Krell EV 600’s.  The 160’s was my first experience with pure class A bias amps.  I .loved them, but just didn’t have enough power.  I was pushing Martin Logan Monoliths and wanted to get a beefy tube amp for the screens, but ended up selling the speakers here on Agon.  I bought a couple of demo Max II’s and used the Pass Labs for them, but ran into the same problem.  Thought about going to tubes, but learned they would be too much $$, for the power I wanted.  With the EV-600’s, I can find no fault.  I’ve never seen a review of them here and bought them used from a fellow Agoner and love them.  To me, there’s nothing like a class A amp.

Bryston 4B cubed. (Driven by a BP 17 cubed preamp)

D'Agostino Relentless monoblock amps.
Naim Statement NAP S1 monoblock amps driven by Naim Statement NAC S1 linestage preamp.

Don’t be cruel but I’m an Integrated  Mcintosh fan. Built like tanks, my last
unit was 36 years old and brought good
money when I did the upgrade. 
Just love that warm un-fatiguing sound. 
I think with amps at a certain price point you’re really splitting hairs.
Now speakers are another story.
It truly is one of the most enjoyable hobbies out there. 😎