gradient revolution amp suggestion


I am using a MAC 6300 integrated with ok results. Any other suggestions for this speaker?
csmithbarc
The revolutions work much better in that room (hard floors, tall ceilings, huge windows). For the price I paid used they are a steal i think. The Zu Druids with sub are great as well although I have a problem dialing in the sub. To be honest its hard to compare the two as I have not had them both to compare in a proper room. I would like to stay under 3K for an amp....looking used.
they do like POWER ... also heard them with a Classe CA400 which was a good match. I would THINK the Red Dragon Leviathan Monoblocks which are 500w class D amps would be an excellent match as well. One of the best of the class D amps available in my opinion if heat/efficiency are issues for you.
If I can't afford a bigger MAC, Parasound, Classe, or similar SS......Would I be better off buying a high power class D amp like a W4S STI 1000 than my current low power MAC 6300?