It's just 2-channel, and I'm not about to embark on creating another system anytime soon. Thanks for your opinion, bigjohn! Anyone else? Has anyone ever detected any improvements due to bi-amping, and if so, what did you notice?

Panasonic AE3000U
Carada Precision Series 102"
Denon AVR-1082
VP150
M60 x2
QS8 x4
SVS PC12-Plus x2