I would not rule out any tube-friendly DeVore speakers from pairing with SS. I've had great success with many amps: tube, SET, Class A, Class AB, Class D. I love my Nines with my XA30.5.
Michael Lavorgna also pairs his Nines with a Pass INT30A: http://www.audiostream.com/content/listening-room-0
Michael Lavorgna also pairs his Nines with a Pass INT30A: http://www.audiostream.com/content/listening-room-0