I went and picked up my Kef PSW 2000 from a friend today who just had it in storage for a long time, last he knew it worked. Im not sure if it is working or not but first i connected it to my Denon PMA 355 amp by connecting an RCA cable from the "pre out" behind the amp, to the "line in" on the sub. That didnt work, so i tried running amp > sub > speakers, the speakers worked but not the sub. The light turns on the sub but no sound at all. Am i connecting it up wrong or is it faulty?? Ive taken the plate amp off and nothing looks burnt out or anything, but i can take a couple pics of you like. Some one help pleasee!