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Turntable resonance normal?

Hi folks. I've noticed that with my Soundsmith cartridge in the groove without the table spinning if I tap on the tonearm, plinth, or HRS base I hear a thump with volume set at normal listening level thru the speakers. Not real loud but there. I don't know if this should happen given my setup. VPI Prime Signature with the Fatboy arm sits on an HRS base which sits on an Adona rack. No noise when stylus is out of groove. Am I expecting too much or am I missing something? Any input is helpful, thanks. Joe
joeyfed55

Showing 1 response by mijostyn

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mijostyn
8,570 posts
 
Joeyfed, yes this is a problem shared by most fixed plinth turntables except perhaps the real massive ones like the big Kuzma. Sound in the room is transmitted to the base and picked up by the tonearm. You can thump all day long on a suspended SOTA and you will not hear a thing. If you tap lightly on an SME you won't hear anything. Same is true of a Basis and I suspect an Air Force. But, only the SOTA comes in at a reasonable price. 
In most cases the noise that gets through is greatly attenuated. I am not sure if it makes a real difference as I have only used suspended turntables for decades. 
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