Rockport Altair matching amplifier?

Andy Payor at the Rockport voicing and listening room uses Gryphon amps. Others have said the combo is great.

Ebm is probably correct too - bet Pass would be a great match.

I currently have ARC Ref 250's and have Rockport Cygnus on order - hopefully to arrive in May/June. My room is 15x21x9 and the Cygnus is smaller than the Altair. For your room size of 17x14, you should have no trouble driving them as loud as you want, even with a modest amp.

I use the soulution 711 and it's superb with the altairs. Rockport use gryphon amps

I was showing in the room with the really big Rockports, the Hyperions, that were driven by two sets of tube electronics to very good effect. The tube amps were Tenor.

Oh yeah, Rockports have shown with Absolare tube gear in the last few years quite a bit. At CES 2015, the Rockport Cygnus was driven by Diagastino amps.

At the Las Vegas SHOW in 2013 I heard the Altairs driven by the MSB solid state mono blocks (200 watts/channel) the sound was okay, nothing special. When these amps were replaced with the Absolare Paaion amplifiers PSET (50 watt/channel) the improvement was profound, no other way to describe it. This was a transformation that simply raised that room/system to a different level. They received numerous "Best Room Sound Of Show" awards. The presentation became alive, involving, 3D naturalness and realistic (excellent tonality and timbre). The dry, flat and 2D uninvolving sound was gone! It was quite a contrast to hear in person, no other variable was changed, just the amplifier swap.

I've had the opportunity to heard this Absolare Passion-Altair pairing in a friend's system many (enjoyable) times in the past 18 months and it is marvelous. I'm unaware of any SS amp that would likely match this superbly natural fleshed out result. Some SS amps will provide more bass weight/impact but that's about it in terms of advantage IMHO.
Best of Luck,