The Amek 501, commonly referred to as the "Langley," is a vintage professional mixing console that represents a pivotal era in British recording technology. It was one of the first "production" consoles released by Amek, a company founded by Graham Langley and Nick Franks. The console is renowned for its "Langley" preamp topology, its flexible modular architecture, and its robust, serviceable construction. While lacking the total recall and automation of later Amek models (like the APC), the 501 is prized in the modern vintage market for its discrete, Class A-style sonic character and highly musical EQ.
"I’m looking for the operation and service manual for the Amek 501 Langley mixing console. Specifically need channel strip schematics, PSU pinout, and trim/Gain calibration procedure. Any leads or PDF scans greatly appreciated. Will compensate for time/copies." Amek 501 Langley Manual