Originally Posted by sivadselim
Speakers NEVER "need bi-wiring".
I'm not sure what 'need' means in this context, but Vandersteen strongly suggests bi-wiring, and there is
a noticeable quality improvement from running jumpers on one wire. There might be other examples, but that's the only one I can think of. Not to open up another can of worms, but this is likely due to their first order networks used in their speakers.
If you like the sound from bi-wiring in your set up and are happy with it then the principle detriment of bi-wiring is buying more wire, which can be practically no real cost. If you try it and like it, roll with it, if not no big whop.
Same with bi-amping. If your AVR allows it, and you can hear a difference, and you don't mind giving up those two channels, go for it. Personally I think what makes bi-amping improve the sound (if it improves it at all, or you feel that it does) is the AVR adjusting crossovers, and nothing to do with bi-amping itself, and possibly the placebo effect. However, I'd rather have the extra channels.
This is what I like about this hobby, you
should do what makes you
happy, based off what you
hear. Let people claim snake oil until the sun goes down. Just be honest with yourself, and make sure whatever you buy has a reasonable return policy.