Hey guys, I hope someone here can help me. I have model number JBL SCS150. This consists of two front speakers, two rear speakers, one center speaker, and one 18" sub. I have these hooked into a high end Sony receiver. I've done evrything that I can possibly do and I can't get the sub to work. I've set the sun to "auto" and "on" but I can never the get the red "standby" light to change to green, signifying that it's receiving a signal. I know all my settings are right on my receiver since I've read the instruction booklet inside and out a million times. In addition, I familiar with the JBL documentation. Could this have something to do with a lack of power to the sub? If you could help, I'd be grateful. I'm going crazy for that thump.