[dlherman]

Have a couple of questions about the Longhorn modification I want to perform
on a Grado Gold.

The guide says to use 1/8" u-channel, but the closest size available locally is
5/32". I don't think such a small size difference should matter, or does it?

Also, would plumbers putty be a suitable damping material in place of the plast-i-clay?

Thanks,
Doug

[Zheeeem]

5/32 will work fine, as will plumbers putty.

[Tom Alverson]

I agree with Zheeeem.  To be sure about the plumbers putty, make a little ball of it and  drop it on a table.  If it bounces at all, then it is probably not good for damping.  I found my plasticlay at the  mall toy store (toys-r-us?)

Tom

[avahifi]

Plumbers putty is acid based to stick really well to copper pipes.  Avoid it, it might eat up your cartridge coils long term.

Plastic modeling clay is available under the name "Permoplast" at art stores if you can't find it at a toy store.

Do not used Playdough, that is a flour and water paste that sets up hard as a rock and is worthless for resistive damping.

Regards,

Frank Van Alstine

[Wayner]

My wife found some non-hardening modeling clay at JoAnn Fabrics. I'm sure you can find it at any craft store.

Wayner

[mark funk]

Clay is like anything else plast-t-clay is the low end and goes up from there. When I clay-ed my Dahlquist DQ-10 I payed a little more to get all black but when I clay-ed the inside of my sub I cleaned out all the stores around here a few times of Plast-t-clay and Permoplast very colorfull on the inside.

[dlherman]

Thanks to all who replied.

I found some non-hardening modeling clay made by Crayola at a local Toys-r-us
and I'll give that a try.

regards,

Doug

[dB Cooper]

Here's a shot of the Longhorn on my Dual 506. The design of the cartridge allows the bar to be placed very close to the stylus tip in all axes. The bar is about 3.5" long. It made a night and day difference in the sound quality from the ULM tonearm.

[mzbrahce]

I bought 30# of clay about 9 months ago for speaker cabinet dampening and the cheapest price I found was from allartsupplies.com
Their shipping charges were reasonable, too--less than the 6% sales tax I pay when buying locally.

--------------Mark

[TheChairGuy]

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John