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In support of your wall mount..............

Posted by Chuck Y (A) on November 10, 2004 at 08:59:00

In Reply to: apparently not posted by Peter Gunn on November 10, 2004 at 05:58:58:

Wood floors will transmit vibrations, mostly from footfall, or vibes from speakers, now matter how well supported. When you place ANY TT on a floor based support you have to isolate the TT in some fashion. The walls of many houses sit on the perimeter foundation and are not directly connected to the wood floor. In these houses a wall mounted platform for the TT would be an excellent choice. Even should the walls be in contact with the floor the vibrations will be reduced by having to pass thru many different types of materiel with different vibrational modes. Of some interest to me, although I have never seen a study on it, is how much vibration passes thru the springs of a suspended TT which is not isolated in SOME manner. I think one of the reasons that John might like his TT set up without additional vibrational protection is that it needs to be able to bleed off internally created vibrations, but I would think that vibrations flow in both directions. Interestingly, I agree with him to the extent that I set my TT directly onto a hard surface to allow the TT vibes to excape, but I go one step further and I try to isolate this hard surface from incoming vibrations.

Don't let John grind you down, you will note that all of his comments are negative, have very little to do with the pratical problems of TT design and use, and he offers no real world solutions. What I loved was his comment below in which he unabashedly, without any support, denegrated off the plinth motors as being the worst design possible - and at the same time he, because of some assumed engineering backgound, is an expert in the field of vibration transmission (and assummedly resonance control) which is the underlying principle for taking the motor off the plinth, i.e. to reduce vibration from the motor to the TT. Oh well......

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