My personal experience is there may be some benefit separating the LF from the MF/HF, but beyond that I would upgrade to a higher quality cable before buying more of a lower quality cable, given the same amount of money to work with. That is what I did with my tri-wired Alon's which ended up sounding better with a better quality bi-wire pair and jumpers. Keep in mind there are a lot of influencing factors including the added capacitance resulting from more wire. Therefore, each case can be different.
Benefit of Tri or Quad Wire compared to Bi wire
My speakers are four way and have fourteen bananas (7 red and 7 black) on the back. There are three sets of jumpers. I am about to purchase new speaker cable. Has anyone tried tri wire or quad wire? According to Robert Harley - you should at least bi wire when you have the terminals to do so. I am assuming there is diminishing return when you go to three or four cables. Please write your experience of tri or quad wiring, preferably compared to bi wire or single wire. Thanks, as always.