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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.


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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.