For $500 or less, a used Adcom GFA-5500 has 200 watts per channel into 8 Ohms, so it would be even more than that into the 3.3's 6 Ohm load, and it is a Mosfet amp, which is supposedly a little warmer sounding than bi-polar designs.
Amplifier to pair with NHT 3.3
I'm the proud owner of a pair of used NHT 3.3s. From what I've read I should be feeding them with something capable of plenty of power, but I've got them running off a small crappy integrated amp (30W) at the moment. Any suggestions for an upgrade? I'm looking in the < $500 range for something used. Thanks in advance.