There's no copyright notice from PROTON on the manual, only the republisher's restriction. Just posted what I would have considered fair citation use under Canadian rules (not entire the file itself)!
Good morning Duncan. Speaker still working this AM. Thanks for your continued interest and advice on the PROTON 301. I am closing the subject thread as the title may be misleading. I do have the full schematic and service manual for probable future cries for help! Unfortunately the republisher restricts distribution.Not sure that is enforceable, I had hoped to post it on Audio Engine for other needy souls.