If you aren't sure what to do with PARASOUND, who I feel is an excellent company and would do everything possible to help, first I would contact them and find out if they can determine the issue and give you an estimate. They may have an authorized repair dealer or facility in your area. If it seems too much then stop there.
Look into the SCHIIT preamps. A lot of sound quality and tech for the money
Look into the SCHIIT preamps. A lot of sound quality and tech for the money