Guys, I am having issues and dont know which part of my system is causing the problem?? I have an AE sub connected to a Pioneer 2011 amp with a single ixos sub cable from the amp to an ixos splitter into the line in L&R of the sub. Recently I have started getting a really loud electrical type hum from the sub. I have disconnected the cable and the hum goes straight away. Have tried a different cable (only had a standard phono type cable and dont really know if this will work at all or if I am supposed to use that type of cable??!!) and the hum went away but now the sub doesnt seem to work properly. Slight rumble coming from it when I go into the setup mode but very very distant and little or nothing coming from it on films. So anyone care to have a stab at where the problem lies? Cheers!!