Just need a bit of advice from you guys and gals.. I've got a set of Missions m7s speakers and sub and suddenly the sub has stopped working - i'm getting no noise during test tones (or during audio). I don't play movies/music loud - to be honest I've watched about 10 films on the setup in the 7 months approx. i've had it! I leave the whole setup always plugged in and the sub sits in standby - is this ok or should I turn it off after long times of unuse? There used to be a light on glowing red to show standby I think, but now there is no light I've changed the fuse in the plug - no change. There's a fuse in the sub itself (11A) so i'm going to buy one of those tomorrow, but I thought they were only there to stop you blowing the sub if you went too loud etc - am I wrong? Do the subs just 'go' and I'll need to get it repaired? Any advice would be helpful!