Should a repair be required, you might want to contact Raptor Electronics. The owner, Brian Hawkins, was part of the original AudioPrism/Red Rose technical team. He can repair and make modifications/upgrades to electronics made by AudioPrism & Red Rose.
Raptor contact details:
raptorelectronics@earthlink.net
Web site link
Raptor contact details:
raptorelectronics@earthlink.net
Web site link