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rvance
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Joined: Sep 8 2007 - 9:58am
To Shim Or Not To Shim?

I acquired a headshell/cartridge alignment jig for my Philips 212 TT. The Grado cart body is about 1/8" -3/16" too shallow for optimum VTA, but the Grado install instructions say NOT to put anything between the cart and headshell- even to obtain the best VTA. Must be a compliance/resonance issue?

My friend's 212 has a vintage Decca with cartridge length shims to achieve proper VTA and it sounds sweet. Given the lack of proper shims, I would have to build up with tiny washers. I've also considered tracing the cart body and cutting a full size piece of material and gluing it to the Grado for the desired thickness- or should I just forget the whole thing?

Any ideas?

Jan Vigne
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Re: To Shim Or Not To Shim?

I wouldn't shim the cartridge with washers. First, I would consider what you might gain by trying to adjust VTA. You don't mention just how your set up sounds right now. So before you go achangin' I would do some thinkin'. What's going to change in sound quality in your system by jacking with the headshell?

If you want to experiment, try a thin piece of cork cut to the dimensions of the cartridge body. Otherwise, if the cartridge body isn't rubbing on warps and you have no complaints about the sound - only a comparison to what another system sounds like, I'd say leave it alone.

rvance
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Re: To Shim Or Not To Shim?

Jan, Thanks for your reply and suggestion. rv

misterdecibel
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Re: To Shim Or Not To Shim?

Maybe a thicker platter mat would help?

JohnMichael
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Joined: Jan 30 2007 - 2:09pm
Re: To Shim Or Not To Shim?

Here is a product that might give you the VTA you are looking for plus other benefits.

http://www.thecartridgeman.com/isolator.htm

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