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Dynavector 17D3 hitting clamp on VPI Scout

Hi, everyone. I've got a serious problem with my new Dynavector Karat 17D3. It was professionally installed and set up on my first-generation VPI Scout table with the JMW tonearm. It works fine until the stylus goes into the blank grooves at the center of the record. Then the side of the cartridge hits the VPI record clamp. Aside from the loud crashing sound this produces, the dealer says that the impact may damage the stylus. For the moment, I'm playing records without the clamp. That's not really a good solution, though, since the clamp performs an important function and is recommended by VPI. Have any of you encountered this problem? Any tips for a solution?
madcitygeoff

Showing 2 responses by lewm

lewm
12,456 posts
 
This would seem to be a problem with only certain LPs that have an unusually broad playing surface, so the run-out grooves run under your clamp. Is that the case? The Karat has a very delicate and tiny cantilever (which is what will get damaged before the stylus per se gets damaged), so I think you have no choice except to eschew use of the clamp on LPs that exhibit the problem. Unless you want to risk your expensive cartridge....

Maybe you can find an alternative suitable clamp with a narrower base, or take your VPI clamp to a machinist and have him grind down the periphery a bit.
lewm
12,456 posts
 
Perhaps I am misunderstanding you. Clamp goes on top of LP; mat goes under LP. Two different functions and different relationships to the LP.

Yes, as I recall the VPI clamp is not particularly large in diameter, so I don't quite know why you are having this problem, unless, as you say and as Elizabeth may be suggesting, the DV Karat is very wide body. I just recently set up a DV Karat for a friend and did not notice that.
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