Solid State Power Amps

Best SS amps I heard, used and would recommend:

1) FM Acoustics

2) Harmon Kardon XX

3) HK Citation 16 modified

4) Spectrum (Spectral) what ever the spelling is - modified

Happy Listening.

I love my BHK 300s.. Fast , accurate and just breathe so much life into the music. Be aware they are not entirely solid state as they have a tube section. PS support is top notch

I have a Cary Audio SLP-05 preamp with Sonus Faber Serafino speakers. I had a pair of Primaluna Dialogue 7 tube amps. Changed to Musical Fidelity M8-700M mono blocks. Can't imagine anything sounding better. The Musical Fidelity amps are fully balanced, differential reference, 700wpc into 8 ohms, 1300 into 4 ohms. System sounds incredible.

Bricasti Design.  They are the most accurately musical amps I have ever heard, and I have listened to others at 10x the price. 

Do not let the power specs fool you as they are extremely underrated.  (After a discussion with owner Mr. Zolner he mentioned that at full published power output, the amps are only outputting 25% of their possible output which explains their extremely low distortion figures.)  I have never heard (with the exception of Boulder) a more effortless presentation.  They would make any hard to drive speaker sing!

Here’s my $0.02…

I would listen to Audio Research (like the 160S) and Moon by Simaudio 861 in addition to your list. 
 

I’ve own McIntosh and loved it and when it was time to upgrade was impressed with Audio Research for its transparency and drive and went with Moon because I preferred the sound to McIntosh and SS to tube. Enjoy the process!