McIntosh MPI 4 Brochure
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Page 1
The MPI4 - maximum performance from your stereo system -"once in - a view of the separation provided on any signal source - absolute balance of your stereo channels from phono cart DUAL TRACE Each channel of stereo signal is displayed individually in the dual trace mode of opera- tion. Comparison of the signals assists in comparison of recordings, the quality of stereo information in the source and much other valuable information. LEVEL The audio level of stereo signals is dis- played as two vertical columns on the screen. The height of each column is deter- mined by the power or amplitude of the input signal. Action can be stopped and held to permit close comparison between the highest levels attained by left and right channels. PHONO CARTRIDGE CALIBRATION You will protect your record investment, extend the life of your records, and reduce needle wear when the turntable is properly set up. With the aid of test recordings the MPI 4 will assist in this proper set up. The display assists in properly adjusting for proper tracking force, best tracing vs track- ing force, anti-skate, proper phasing, and channel separation. FM TUNING You'll see signal strength, center channel FM tuning and a reference for multipath distortion elimination. The image is a dis- play of the tuner IF curve. Signal strength is the vertical axis. Horizontal center is the center of the detector and IF curves. Proper tuning gives minimum distortion and maxi- mum listening pleasure on all kinds of FM broadcasts.
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helps you lifetime"programs flawlessly recorded - better FM reception - a measurement of the performance of the phono cartridge dge to speakers - an accurate measurement of power output PHASE Program material that is 'out of phase' sounds unnatural and thin; 'in phase' sounds alive and rich. Occasionally a pro- gram source will be 'out of phase.' On the MPI 4 you can see the phase relationship so you can correct the condition. $599.00 Cabinet $29.00 BALANCE Accurate system balance assures you of full stereo pleasure, The MPI 4 gives you a visual indication of the balance of your stereo system. You can check and correct the output balance of your stereo phono cartridge, tape recorder, tuner, or any part of your stereo system. You will know when your stereo system is in balance when you use an MPI 4. CHANNEL SEPARATION The MPI 4 shows the stereo separation from all stereo program material. The dis- play changes position and shape with the program material to permit interpretation of what the display means to your listening enjoyment. You see what makes a good stereo record sound good. You will know why your records sound the way they do. MULTIPATH DISPLAY Multipath reception deprives you of FM listening enjoyment in several ways: - noise level increase - distortion is introduced into the pro- gram material - stereo separation is reduced - the stereo effect may be completely lost - stereo indicators may fail to function