The limiting factor in your system now is the electronics - and I'm not talking about power but rather finesse that only great quality electronic design can dish up. I just found that out last night.
You're talking about clean amplification? I've gotta say that the ADA1000-3 sounds great to my ears (noticeably better than my Denon 4500H when driving the same speakers). I have the space to go with separates on all channels some day (big dedicated media closet with dual 20amp dedicated circuits) being built as we speak.
