McIntosh MPI-4 all original excellent condition

The McIntosh MPI-4 is completely original. Everything works and what you see is what you get. Please visit my website for more pics at vintagesoundshed dot com.

"The MPI-4 is a laboratory grade instrument. It provides 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."

Controls:

Sweepclassicaudio.com
Horizontal
Vertical
Intensity
Power Level
Gain/Power

Switches:

Sweep Frequency 20-200
Sweep Frequency 200-2K
Sweep Frequency 2K-20K
Dual Trace Left
Dual Trace Right
Level
Stereo
Multipath
lassicaudio.com

Indicators:

Oscilliscope Displaylassicaudio.com
Power Level: Preamp, 1000W, 300W, 100W, 30W, 10W, 3W, 1W, 0.3W, 0.1W

Controls Top:

Focus
Trace Separation
Sweep Expansion
Signal Strength
Deviation
Audio Trim Left
Audio Trim Right

Switches Top:

Level Mode: Normal, Peak, Reset
Reticule Illumination: On/Off
Low Pass Filter: On/Off
Trigger Source: Left, Right, Line
Multipath Polarity: -/+
Rear Panel:

AC Outlet Unswitchedlassicaudio.com
Power Amp In (L, R)
Speaker Impedance: 4, 8, 16
Left Audio: In/Out
Right Audio: In/Out
Signal Strength Inassicaudio.com
Deviation In

Shipping Weight: 25 Pounds (MPI-4)
Shipping Weight: 16 Pounds (Cabinet)