I put the CV-4 (half of biwire pair) back in(instead of using the jumpers) after about 18 hours straight on the jumpers, and I noticed BIG improvements in bass response. This could be due to the fast that my jumpers havent been "broken in" yet, but it could also be due to the fact that I'm using a relatively small gauge cable with an already bass-shy speaker. I NEED DRAGONS!!!!! I bet the jumpers come around some, but I remember from previous experiments that speaker gauge does have an effect on bass quantity and quality. Curiously, when I switched from Midnight3 to SA-40, My Hales R3 (at the time) enjoyed a less full, but more tuneful bass. THe bass on th eHales was probably their best point, and it was plenty there, so "losing" a smidgen when I went to the SA-40 was ok. The character of the bass became much more tonally accurate and less "speaker like". NOW, however, I might need a larger gauge cable to squeeze all the bass I can out of my Nautilus 805s, but my problem is, I love the silver sound. Poerhaps I'll borrow a pair of midnight from a buddy to sub in for the CV-4. IF the bass gets better, I guess maybe I need some Dragon or (egad) Sterling, whinch isnt ALL silver, but I guess I could make due.... Too bad PS Audio doesnt make a Lab cable in silver.