Since you are also considering SS integrated amps, I would suggest the Pass INT-30A and the Hegel H300.
I own the Pass and truly love it. Beautiful midrange that makes vocals incredibly realistic and just awesome soundstaging & imaging. I heard the Hegel at RMAF on Thiel 3.7s and it was also great for all the same reasons. It also has more power and possibly better bass control (I don't know this for certain since I didn't hear it in my system). Regardless, it's certainly a worthy competitor to the Pass.
I own the Pass and truly love it. Beautiful midrange that makes vocals incredibly realistic and just awesome soundstaging & imaging. I heard the Hegel at RMAF on Thiel 3.7s and it was also great for all the same reasons. It also has more power and possibly better bass control (I don't know this for certain since I didn't hear it in my system). Regardless, it's certainly a worthy competitor to the Pass.