DPL II & DPL IIx

[GMichael]

Thanks. I have a Denon 7.1 receiver on the way. I posted the question because I was wondering if I should get the extra two speakers (for DPL IIx) down from the attic.

That depends on your room size and layout. If your seating is against the back wall then 7.1 is a total waste. If you have 5 or more feet behind you, it can be nice to have the extra speakers to fill in that space. But as others have said, It's just a made up field that doesn't add a huge difference. I like mine. Others would have no part of it.
If you don't have the room for them, I believe that some of the Denon 7.1 AVR's will let you use those two extra amps to bi-amp your front mains. Does this improve that sound? Again, it depends on who you ask. Some say of coarse it does, while others will say h.ll no. But it's an option you can play with.

EDIT:Or you could use those 2 extra amps to run stereo into another room, or even outside.