Morch DP6 and vertical damping - pros & cons??


I am setting up my tonearm, a Morch DP6. The instructions that come with it tell you how to add the included silicone fluid for vertical damping (at the pivot point) but also mention that this might not be a good thing to do (can't remember the exact wording.) The instructions do not say why you might not want to add the fluid to the pivot point. Can anyone tell me why or why not the vertical damping should be used? Does it effect the sonics in a possibly negative way, or....? I will be using the arm on a Teres 160 turntable with the basic ZYX cartridge, R100H.

Once the fluid is in there, it looks as if it would be nearly impossible to remove, so I would like to make an informed decision about whether or not I should use it.

Thanks,

Holly
oakiris

Showing 2 responses by cello

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Holly,
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I think both Doug's and Raul's comments are valuable
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I would suggest a melding of both their points in that you start without any damping fluid, wait 200 hours (more than the 100 Doug recommended, I think more break-in time would be important).
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Then, if the damping fluid is easily removed, try adding some damping fluid in miniscule amounts (literally one small droplet at the end of a toothpick) at a time and listen using the same reference LP that you know well and displays all of the frequency ranges. It is a long process, but well worth the effort if it works in your set up..
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Below are a couple of links for threads on Audiogon, related to using damping fluid on a Graham 2.2 arm that will give you some additional insight. It is not directly related to a DP-6, but the dialogue is well worth your time to read.
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http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1108179762&openusid&zzCello&4&5#Cello
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http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1096560646&openusid&zzCello&4&5#Cello
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Where as Raul may end up being right, I think it is well worth the time to experiment in your system with your cartridge.
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I once spoke with a Graham rep at a demo of a new Graham Arm and he had not put any effort into getting the damping fluid right and did not seem to realize the huge value in having the right amount of fluid in a Graham arm. I am not sure that the manufacturers always have as much experience with their own products in some areas as some of the customers do.
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Doug and I were together when we found out how important getting the correct amount of fluid was on a Graham arm with an Airy cartridge. The sonic improvement was startling.
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I can’t tell from Raul’s post if he has tried experimenting with the damping fluid or not. If he has, not then he might be missing an opportunity to get even better sound from his system.
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Rgds,
Larry
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Hi Sirspeedy,
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Good to hear from you and glad to hear that you are finally getting your TT back.
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I had a Symposium Ultra that I used under my CDP and it killed the sound. I have no idea how it will do under a TT.
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I would definitely recommend that you get a set of Symposium Rollerblocks to use with the Ultra and see what results you get. The Rollerblocks come up used on Audiogon fairly often, but you have to be quick, they go fast.
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If the Rollerblocks don't do well under your TT, I can almost guarantee that they will help either your CDP (if you have one), pre-amp or amp. They are one of the best add-ons to my system. In fact if you get a pair on don't like them, I will buy them from you for up to $ 250.00 as set.
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Let us know how your TT sounds with and without the Symposium Ultra shelf.
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Rgds,
Larry
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