Dynavector 17D3 hitting clamp on VPI Scout

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.

Thanks for the replies, folks. Lewm, I'm not positive, but I suspect that the problem will occur with most if not all records on my system. I only played a few before I realized what was happening, and since then I've either lifted the tonearm before the run-out grooves or played records without the clamp. I don't want to do any experiments that might cause damage. I checked the records I played, though, and the clamp doesn't extend over the run-out grooves. I checked a number of records by moving the tonearm by hand to the end of the playing surface (without actually playing the record) and it looks like the edge of the cart would impact the clamp in every case. The problem seems to be that the cart is wide enough that its sides extend beyond the playing surface.

I like the idea of grinding down the clamp, although I don't think it's going to work. I looked at the bottom of the thing and discovered that the surface is only about a quarter of an inch wide. If I ground it enough to give room for the cart I might destroy it.

I'd be open to using another clamp or weight or something. I'm very new to this so I'm not really sure what the options are. It looks like most of the clamps out there are for specific turntables.

Thanks for helping out a newbie!

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