GoodSoundClub - Romy the Cat's Audio Site

In the Forum: Analog Playback
In the Thread: Bass impact on Turntable: how to estimate objectively

Post Subject: I have done some work on this in the past.Posted by mem916 on: 10/14/2014

I recorded the output of my cartridge/ phono stage/ line stage with the stylus resting in a groove of a stationary record while playing a CD at high volume with heavy bass through another path. Since my system uses tubes I was also getting tube microphonics of course.
One of these days I will re-do this test and play an unmodulated test track as I suspect that is more realistic. Comparing the spectrum analyzer plots of an unmodulated track with and without the high volume air and floor born vibration hitting the system should reveal the degree of the problem.

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