The dreaded "base audio" upgrade...

[SchweetMunkie]

So... I'm hoping for some clarification on a few things.

1) I've read plenty about the Focal 100KRSs, IFBMW-S and Cs, but both seem to have a pretty high price to value ratio...and I'm wondering how they compare to something like a Infinity Kappa setup? Any thoughts?

2) Since I have the base audio "system" and the stock head unit outputs "processed" signals to the fronts, rears, and subs... should I get something that advertises to sum the signals first before amping it? Would something like the Zapco DC 656 do that for me? Or the Audison Bit Ten? Or the JL CL-SSI??????? It's all so confusing!

I suppose the speakers are trivial if I can't work out how to process the signal first. I'd really appreciate any suggestions all of you could offer me!!