People complain about lack of bass, not enough mid range. Solution?

So I'm thinking of bi-amping my B&W 602s2 bookshelf from a Rotel RB-850 5 channel amplifier. As I understand I use my bi-wire Audioquest cables by plugging it into the left main and left surround and the same with the right. What I'm reading here it's a waste of time. Am I chasing a ghost?

@dennis041992

So I’m thinking of bi-amping my B&W 602s2 bookshelf from a Rotel RB-850 5 channel amplifier. As I understand I use my bi-wire Audioquest cables by plugging it into the left main and left surround and the same with the right. What I’m reading here it’s a waste of time. Am I chasing a ghost?

None of us are really in a situation to know for sure what your results will be. Given a less ideal setup of 2-way passive speakers and a single multi-channel amp, you’ll likely have less dramatic results than some other bi-amp situations, but you have little to lose by trying because you already have the capability. If you don’t try, there will be zero change. If you do try, there might be some improvement. Give it a go, and find out for yourself.

Per Denon:

No.

@knotscott

Interesting schematic above. Seems a bit convoluted though. It’s from A receiver with a built-in amplifier and I’m hard-pressed to see where there’s any quality to do much of anything. It does seem a bit strange though the the way they have the speaker split between main and surround signals. Why would anyone wanna do this? Maybe the internal settings allow for by biamping and changes the nature of the signal path? who knows 

@emergingsoul

That might be a bad example, as there may be other selection requirements not shown... I’m sure there are others.

It doesn’t provide the advantages of a true 2nd amplifier, but running a separate output channel for each driver, does offer the tweeter an output that doesn’t have the responsibility of driving the woofer.