Rf-7
No, not a BIG difference. It took me hours of listening to come
to the conclusion that it has somewhat a wider sound with
Bi-wire, than with ordinary lamp cord. The lamp cord had
a somewhat narrow-er sound and more forward.
It was so very slight, so min. marginal that it isn't worth how
much the cables cost me. There is so much controversy right
now that bi-wire is a scam. I did hear ever so slight margin
difference that just isn't worth the cost. Just go with a nice
quality speaker cable and you will be fine without the bi-wire.
I have four Klipsch RF-7's and really like them very much.
Enjoy!