Best monoblocks around 3-4k used for revel studios

H2O can power any speaker to what ever level you want to take it, without ever loosing it's composure.

you may peak onto audioclassics.com and find Melos 400W monos within your budget.
they're realy great.

I would definately look into the sonic frontiers power 3 (regular or SE) model. I love their stuff.

Jungson JA-50 pure class A momoblocks rated at 80 watts rms are a steal at $2500 a pair from sekei.com. They will drive your studios with ease. I have a pair driving VSA VR5 HSE and they are as close to a tube amp in ss that I have heard.
Built like a tank.

Have seen Rowland model 7's listed in that price range. Great sounding and beautiful to look at.