I have a REL Q100 active subwoofer and a Pioneer VSA-E06 DD amp three months ago they worked perfectly well. After boxing up my entire system in the spare room and redecorating the lounge (which looks great now by the way)I reconected my system together and all was well ......except the amp will not output to sub,so I take the sub to my local dealer who sends it to Rel....nothing wrong they say.I take the amp to my dealer they agree sub and amp not working together.OK here it comes the amp hooked up to another active sub via the sub pre out all works fine??!! My sub hooked up to another amp all works fine???!! What do i do now both used to work together,both work with other pairings,WHY WON'T THEY WORK WITH EACH OTHER..????? Your help/suggestions greatly appreciated.