I didn't look up your system to see what your speakers were but, Hovland makes a pretty good SS amp. I am using a 4 channel Theta Dreadnaught in a vertical bi-amp configuration with a Hovland pre and it seems to work fine.
I would think any of the Jeff Rowland amps would also be a good match.
I would think any of the Jeff Rowland amps would also be a good match.