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The MV75A had an Achilles' Heel

One of my mentors who was an audio reviewer lent me one to compare with my Threshold Stasis 3 in the early 80s. The C-J reminded me of the AR AU integrated (my first "serious amp" at age 15) in that it sounded great at high output but resolution fell apart at low levels - completely unlike the Threshold.

That was a great learning experience and why I didn't keep the AR amp very long. The Dynaco PAS-3X that followed a year later taught me another valuable lesson about impedance matching. With the preamp's highish 1k ohm output, you needed high input Z amplification. Like the Stereo 120 amp used with it having a 100k value. Forget using many other SS amps like the Crown D150 used the next year having one fourth that value driving double Advents - albeit with an H-K Citation 11 that had no problem.

Gain and impedance matching are both important considerations for ideal partners.





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