I have a JBL PSW1200 which has apparently had an amplifier issue. The manual says "do not remove the back cover", so after removing the back cover I found the 2a fuse blown. I replaced the fuse and it blew again. I called JBL and they said they cannot fix the PSW but offer an upgrade accomodation to a P12SW for $200 plus tax and s&h. Is it worth it? I have had trouble locating it for pricing. Is there something better out there for around $300.