Amp for VA Beethovens?

I am upgrading to the Vienna Acoustics Beethovens from the VA Mozarts. I have been using a Creek 5350SE int. amp which is 85w at 8ohms and 150w at 4ohms. The Mozarts are 6ohm speakers, and the Beethovens are 4ohm. While I am sure that the Creek will power the Beethovens, I think that I would be better off with something more powerful. I would prefer another integrated amp, but am willing to either add an amp to the Creek, or get a matched set. Any suggestions? Thanks