Cal Audio ?

http://www.approvedaudioservice.com/cal.html

Approved Audio Service, Inc. was one of the few authorized independent service facilities for California Audio Lab products.

These guys are great. They repaired my Alpha. They called me and explained the issues and the cost of repairs.

Support was an issue when they were in business.

They made good products but have been out of business for years. Support will be an issue if repairs are needed.