I've been doing a fair amount of research as I plan to replace my Bose Acoustimass 10 & Velodyne 10" Sub driven through a Pioneer Elite VSX-82TXS. My room is a living room/dining room combo with hardwood floors measuring around 2400 Cu.Ft. (12x24x8). Prime listening position is about 9' from centre speaker with the surrounds along the back dining room wall, about 15' behind prime listening position. I'm considering M60, VP150 and QS8.

Sub Questions
- I'm considering either the EP350 or EP500. The EP500 is a lot more money and I'd like to better understand the incremental benefit and value of going that way?
- Is there any case to be built to keep the Velodyne Sub as a 2nd sub in this type of configuration?

Bi-Wiring Question
- Is there an incremental benefit to bi-wiring the M60s? I've never done Bi-Wiring before and don't yet understand the benefits for doing this.

Thanks for your time. I've found this board to be very informative as a lurker.

Cheers,
Spice