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
Another newbie question.... do turntable mats perform some of the same functions as a clamp? Would a mat be a solution in my case?
I found the same problem with a Michell Engineering clamp. The Karat 17D3 has a very wide body and it hits at least half the LPs that I've played. I try to lift the tone arm before it hits the clamp but oftentimes I'm just a tad late. I don't think that the slight bending of the cantilever is exerting enough torque on the stylus or generator to do harm in the short term but I've been thinking of shaving the clamp down to avoid potential damage in the long term. The Michell Engineering clamp bell is made of delrin so it'll be easy to grind down but I'm not sure about the resulting aesthetics.

Seems that Dynavector needs to redesign the Karat's dimensions so that it doesn't become a deciding factor in cartridge choice. The 17D3 is such a fine cartridge, I'd hate to think people would avoid it because of this problem.

Tom
Hi, A mat won't solve anything for you. It also requires raising the tonearm, to maintain proper vertical tracking angle and stylus rake angle. I have a Dynavector XX2MKII cartridge, and have not had any problems such as yours. I have used the clamp that came with the table, the Stainless heavy VPI weight, and now a TTW (Turn Table Weights) heavy brass clamp that works very well, and is a joy to look at. I don't recall anyone else having this problem, and there's quite a few Scouts out there using the same cartridge as you are, so I am surprised to hear this. If it's a newer version of the Scout, perhaps they changed the clamp. Try giving VPI a call, and report the problem, I'm sure they can come up with a solution.

Good luck,
Dan
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.
Thanks for clarifying the mat issue. VPI is aware of the problem but I haven't heard anything from them yet. I'm trying to do some self-education in the meantime.

I did a bit more research and found a product--the Rek-O-Kut Disc Stabilizer--that was specifically designed for the problem of record clamps hitting the cartridge. It's a lot narrower than the VPI clamp that came with my Scout--2-5/16 inches vs. 3-1/2 inches. It's a weight and not a screw-down clamp.

I'm wondering if this product would be appropriate for my Scout. If so, would I use it in conjunction with the washer that VPI supplies for use under the record?

I really appreciate the help that you're all offering. I'm learning a lot here.