I was coincidentally able to learn something interesting with my 35 foot cable when I added my second EP-500 and was messing around with different placements. I daisy chained the second EP-500 with the 35 foot cable and immediately noticed a dramatic drop in sound level from that second sub. I had to significantly up the gain to get an equal sound pressure. Didn't like the placement anyway so I abandoned the 35 footer (it was a good coaxial cable). So...makes me wonder about how much signal loss would be occurring with that kind of cable length. I now daisy chain the sub with a 12 foot cable and there is no need to adjust the gain different from the first sub.
