There is always TE systems for these kind of amps. They are not cheap but they are several steps above a Mirage in quality. http://www.tesystems.com/ As far as the old FAA amps go. Some folks are still using them but as another poster indicated the converted Larcan TV transmitter power amps are a smarter buy unless you can get the old FAA amp for a bargain. Old FAA amps seem to be ~$250-350. They make 300-350W and are pretty heavy and loud. The Larcan will make 700-900W cost about $600-700 and run off a 50V server switching power supply.