So I'm planning on an Emo XPA-3 whenever the Spring sale rolls around. I currently have an Adcom GFA-5500 with an Onkyo NR-708 receiver. Front speakers are Polk RTI-12's with a CSI5 center, a couple Sony towers for surrounds that I've modified with inexpensive crossovers (stock just had caps inline with the wires) and better tweeters/mids, with some stock Sony bookshelf speakers for rear surrounds.
I eventually want to get some RTI A7's for surrounds and some A3's for the rears, but what I have makes me happy for now.
The Adcom is in the shop currently but normally runs the RTI-12's. The NR708 runs the rest.
I'm trying to decide on the best setup once I get the XPA-3. Should I bi-amp the RTI-12's? The things LOVE power so I'm tempted.
If I do, should I use the Adcom on the woofer section and use the XPA-3 to run the mids/tweets? Or should I use the Adcom or the XPA-3 to run the surrounds and use the receiver to power the mids/tweets and the XPA-3 or Adcom to run the woofers? I'm favoring the Adcom to power the woofers if I do bi-amp because it has a higher damping factor (700, yes, 700) than the XPA-3 (Approx 200) and (arguably) more headroom.
On the other hand, I'm not sure how worthwhile it is to send 200 wpc of power to the mids and tweets on the RTI-12's; most of the power gets sucked by the woofers. I'd think the 110WPC the Onkyo puts out would be sufficient, especially if it's only responsibility besides that was to power the rear surrounds.
Plus I'm not sure if there would be an issue with balancing the sound levels between the upper and lower sections?
The Sony towers really aren't power hungry at all, and I don't know if the crossover can handle 200+ watts. Once I get my hands on the RTI A7s I'd of course I'd end up using one of the amps to drive them too.
Either way I'm probably going to have to run a extension cord to another room, I don't know if the wiring in this room can handle two big amps plus the receiver and the TV.
Opinions or past experiences anyone?