External amp recommendations/help

cambir
cambir Posts: 1,046
Looking for some advice, as I've almost always used an AVR to drive my main system, plus a zone 2 and 3. But I picked up a pair of Vienna Acoustics Mozart and a Maestro center, and I'm amp curious. My Marantz (SR8012) can drive 4 ohm, but I'm wondering what, if anything, I might be missing? I grabbed a Rotel RMB-1066 locally, then realized it isn't rated for less than 8 ohms when in bridge mode.

Any sub $400-ish amp recommendations to try that will make these Vienna's sound even better? Or will I need to spend considerably more and I should stick with the Marantz for now?