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McIntosh MPI 4

Maximum Performance Indicator (1975)

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McIntosh MPI 4


The McIntosh MPI 4 is a laboratory grade instrument providing the facility to continuously monitor the quality of the performance of a stereo system.

The MPI 4 can sample and display signals from the tuner, preamplifier and power amplifier without reconnecting cables.

Signals are displayed on an oscilloscope screen calibrated with scales for tuning, measuring and testing.


instruction/owners manual   English -

service manual   English -

brochure   English - martylightroom

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This website is not affiliated with or sponsored by McIntosh. To purchase MPI 4 spares or accessories, please contact the company via their website or visit an authorised retailer.