Any electrical engineers out there? Set up: - Yamaha RX-Z9 (running surrounds FRT/REAR) - Parasound HCA-2205A (running Center and Fronts) - Center= Definitive CLR-2500 - Fronts= JBL L7's Current config: I'm currently using the Parasound to run the center and L7's and it has made a huge difference in the overall impact. So, I'm using 3 channels of the Parasound at present. Question: I've considered just passive bi-wiring these three channels as I need better speaker cabling anyway, but my real question is regarding the Parasound. Does it make any sense at all to use the remaining 2 channels to bi-wire the L7's? It seems such a waste to have these channels not being used. So, the technical question is can you split the PRE OUTS for the FRONTS and feed them to 2 different channel inputs on the Parasound and then use the outputs of the 4 channels to bi-wire the L7's? I don't understand the implications of essentially tying two inputs together on the Parasound to accomplish this. I do understand that the same power transformer is feeding the entire amp but each channel has it's own storage capacitors (30,000uF each channel), transformer winding, and output devices so my thought is I would be gaining some power reserve. So, FRT LEFT on the Z9 would feed channels 1,2 on the Parasound and FRT RIGHT would feed channels 3,4. Then channels 1,2 would bi-wire the Left L7 and channels 3,4 would bi-wire the Right L7. I've read the many threads on bi-amping/bi-wiring and I certainly don't mean to revisit what others have discussed, my main question is will I damage my equipment by splitting the PRE OUT on the Z9 and use it to feed two channels on the Parasound. Thank you in advance for your advice and expertise.