I have a JBL E250P subwoofer and it is giving me issues: -When I play sound, it works just fine. -However, when I stop playing music, it will NOT go into standby mode. If I turn it off, and then back off, it stays in standby, then turns on automatically! -I unplugged the RCA cables from the sub (JUST the power cord going in), and it did the same thing! -I can hear a VERY faint buzzing coming from the woofer! Not good at all. I got this guy from JBL directly as a vendor accomodation, so I will be dealing with them. What do you think the issue is? Also, do you think JBL trusts my mAd $k1llz to pull out just the plate amp and send it to them? I don't want to pay serious cash to ship this back to Northridge. Thanks!