Audiolab no longer exist as a company, they were taken over by tagmclarenaudio in 1997/8. You can still get spares and servicing from TAG mclaren Audio LTD however INSTRUCTION MANUALS can be downloaded free at the audiolab website. Try the tagmclaren audiolab website at http://www.iaguk.com/tma/index.htm
Any manual available from Instruction manuals UK are listed below :-