Integrated Amp Upgrade-itis hitting....

Good suggestions from those mentioning Rogue or PrimaLuna.  Those are things I'd like to to try in that price range.

That said, I think gdhal has made the best suggestion....the MF M6si.  I also owned this amp for two years and thought it was just great.  Had to upgrade to separates many many multiples in cost to meaningly improve on the M6si.

I have a Raven Audio Integrated Reflection MK2 amp that drives my Wilson Audio Duette 2's.  Check out their website and call Dave Thompson before making a decision.  Not only do they  create showpieces but the power and sound is undeniable.  

While doing some, at my home, auditions, of both SS and Tube amps and integrated amps to pair with my Magnapan 1.7s. Two of the tubed amps I was able to compare was the Prima Luna Dialogue HP and a Rouge Cronus Mag. II. When paired with the Maggies, both sounded very nice, with equally large sound stages and very good detail and imaging,  but the Cronus Mag. had better dynamics and an easier time driving the 1.7s. I finally (with no regrets) even over a couple of very nice SS amps - choose the Rouge. I was also pleased that the Cronus Mag II has a very decent phono stage, capable of running a mid or high output MC cartridge.
For the money or even considerably more money, I found the Cronus Mag. II pretty hard to beat.
If you haven't already chosen - maybe something to consider.
Happy listening,
Jim