I have a nice pair of Snell XA 90ps with the amplified powered subs (2 in each box). On one speaker the amp is not working, it powers up, red LED illuminates on the front of the cabinet but no sound. Drivers tested fine and produce sound, just not from the amp. Anyone know how to get this repaired? All of the other drivers are working fine, just the 2 - 10" subs are not getting powered by the amp. I'm told that the micro control board goes defective on some of these. My plan is to sell these as they are too big now for my living quarters but I want to have a fully functioning pair to sell vs. something that needs repair. BTW if anyone is interested in them, repaired or as is, message me. These are awfully nice speakers and were right at $7K a pair when new. A good deal awaits someone looking for these!