I have Audiosector Patek SE's in 50w stereo as well as 100w bridged mono versions (one set of each, with original power supplies). Not sure exactly what you are looking for... you can PM me if you are interested in following up. Have had these for years, they are in mint condition. These are power amps, not integrated. With balanced as well as SE connectors and Cardas clamp/thumbwheel style speaker connectors.