Bi-wires links for speakers ?

same - except for one thing...

Richard Vandersteen is a fan of biwiring for his speakers & I pay attention to his opinions, just as I do to ARC, Pass, Magneplanar, and other top manfs. with long track records of excellence

Personally I DO NOT believe that bi-wiring can make any difference if someone really wants to improve the sound he should bi-amplifying ; more power=more control or just upgrading the ampflication (single wiring),But I do suspect that the standard stock jumpers provided with the speakers might degrade the sound so replacing them Should at least match quality of speaker cable. 

Is your BELIEVE based on theory or personal experience?

From my experience, best result is using 2 separate runs for TRUE bi-wiring.   Doubled the cost but well worth it to my ear.

Personally I DO NOT believe that bi-wiring can make any difference if  someone really wants to improve the sound he should bi-amplifying 

If you want a definitive answer, why don't you contact ProAc? They built the damned thing. 

Before we go crazy over 4 inches of wire, try pulling the plate off the speaker. You may be surprised at the rather pedestrian wire that runs from the terminal to the speaker elements. Several feet in larger speakers.  And in the crossover circuits there are caps and resistors that have tin leads that are an inch long on either side of the component. And coils that are who knows how many feet of plain copper wire rolled up. And in some the signal path runs through circuit board traces. So, how is replacing 4 inches of wire on the outside going to improve anything?   if you hear a difference it could only be subtractive, because there is no way to overcome these internal shortcomings. It may sound different, but not better. And that Gentlemen is My humble opinion. 

Just curious, has anyone noted directionality rearing its ugly head for bi-wire links? Are any specialty jumpers marked with arrows?