i was under the impression that biwiring, in some cases, can be effective because the back-voltage going thru the wiring of the woofer is now separated from the wiring to the the tweeter, even tho it eventually meets up back at the amplifier. i believe that having the connection point several feet of wire away, at the amp, instead of at the speaker, can make a difference. i know my monitors sound better w/a stereo amp when bi-wired, as opposed to having a single run w/the speaker mfr's factory yumpers in place. but, perhaps its sonic degradation of the yumpers? or yust the fact that, when bi-wiring, i am doubling the quantity of copper cabling? i admit that i havent tried doubling the speaker-wire to only *one* set of terminals w/the yumpers in place...
doug s.