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In Reply to: RE: Woofer Pumping posted by AudioSoul on February 06, 2016 at 09:42:31
Especially when the arm has far too much mass for the cartridge in use. An example would be to mount an ADC XLM-II(30 x 10-6cm/Dyne compliance) up to an original (16.5g) Thorens TP16 tonearm. I've seen woofer pumping under that condition. And the phenomenon went away when a more suitable cartridge was mounted to the somewhat heavy tonearm.
But that is just one plausible cause for woofer pumping that I know of.
-Steve
Follow Ups:
nt
clearly he said "turntable rumble".
arm/cart mismatch has nothing to do with rumble.
-Steve
I was not referring to his tentative explanation for his problem. I was referring to the problem itself: one woofer "pumps" while the other does not.
If I am incorrect, let me know.
"I was not referring to his tentative explanation for his problem. I was referring to the problem itself: one woofer "pumps" while the other does not.
If I am incorrect, let me know."
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I'm not saying anyone is incorrect. I don't have the energy to spend on such posting. If I remember correctly I have seen an occasion of woofer pumping where one speaker exhibited the pumping and the other did not. The correction was in fixing the arm/cartridge mismatch.
That is all I can offer, correct or incorrect.
-Steve
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