So I replaced the stock jumpers on my LSi9's with some monster cable I had laying around (I think it is Z1) tonight. Just did one speaker so I could do an A-B.
I found the stock jumpers to be superior in terms of bass and imaging than the monster wire. Not by a huge margin, but I definitely preferred the stock. I then replaced the second set of jumpers with the monster and listened for a while. I experienced listener fatigue for the first time with the LSi9's. Switched back to stock and decided to leave well alone.
For reference, I am driving the 9s with a Rotel RB991 (300WPC@4ohm); Cobalt ultimate speaker cables.
Anybody experienced anything like this? I have often heard that replacing the jumpers yields an improvement, but this was not the case.