All I was trying to explain with my previous post is that the LFE channel itself is analog, so for the best results you would need an analog shielded
cable, not a coaxial cable with the wrong impedance value. A cable like this for instance: Profigold
. (This is not the best cable per se, just a reference). As you can see, in fact this cable is nothing more than a mono analog shielded
cable. Otherwise look it up at dolby or wiki, and you'll see I'm correct that the linkage between your amp and your active sub is analog. (And that was my whole point, I never said you didn't need good shielding...)
I am not gonna respond to this anymore, seeing we are going way off topic with cable clutter.
Speaking of this topic, did you check your cables TS? Haven't heard from you if you resolved it or not, kinda curious now.