Hey guys, first post here and I need help.

I just bought a pair of NHT Classic 3s and am running them in a 5.1 setup off a Denon 2805 amp. Since I got them home I've been wondering if I'm giving them enough good power.

The manual says that I get 125w at 8 ohms in 2 channel mode. My question is, how much difference in sound quality will I hear if I add a under $1500 amp to power the mains? Anyone have a specific amp recommend?