It may be a little late to chime in on this thread, but I would concur that the Diamond 8.4s respond to better feeding. I had been using a single, lowish power amp (a 30W/channel NAD), and was disappointed with the performance of my system, even at modest volumes but especially at higher ones. So I bought a second amp and started passive vertical biamping, which helped enormously in tightening up the low end and clearing up the high end.
Now I face a transition to a surround set-up (comprising four 8.4s, but no centre or sub yet), and am hoping that I can get away with using a better, higher power amp to get similar results without biamping. Wish me luck!
Now I face a transition to a surround set-up (comprising four 8.4s, but no centre or sub yet), and am hoping that I can get away with using a better, higher power amp to get similar results without biamping. Wish me luck!