I have the 703's with a HTM7 center, all powerered with a classe CAV-180 5 channel (330watt) multichannel amp. I was disappointed with the 703s at first, and wanted to return them. Far too bassy and too bright top end. Nice mid-range, but so what? I upgraded my cables, found the best position for the speakers, and ran them for 50 hours to open them up. Wow! What a difference. I listened to the 803 and 804's with a rotel 1080 amp, and my setup sounds better. Hell, my 703's sound better than they did when I listened to them with a Rotel-1080 at the dealer. Now I guess the 803-804s may sound better with my classe amp, but for a rock 'n roll guy, I love turning my sub way low, and driving the 703's base speaker. For the price and for rock 'n roll - The 703s beat the 704s and with a quality classe amp, beat the 803/804s.