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

McIntosh 600w/c vintage late 80's. Bought it secondhand but returned it due to hum. Replaced with Krell 250wpc not nearly as fine driving the B&W 803s3

My own modded Mac 2105 and an Audio Research 100.2. That is a really nice amp.

My Sansui AU 7700 recap is so great that i bought another Sansui supposed to be better in the alpha series.... theorically better in refinement and it was.... But i go on mainly with my so sweet, ,more colored, and "less refined" Au7700.... The 2 Sansui are marvels...The Au is not less refine in fact it was only in a different color scale....It make all music natural.....

Not sure if this is " best ", but Edge ( now Maker Audio ) NL Reference mono blocks, through a pair of MBLs. It was so beautiful listening to Santana’s Europa, I cried.

@roxy54

Audio Research 100.2. That is a really nice amp.

i agree 100% .... 100.2 by arc one of the nicest ss amps ever - voiced warm yet transparent and w/ iron grip when needed - voiced to sound right by the definitive tube amp maker

i have had mine since new, others come and go... this one stays...