DIY Platter

[Ammonite Audio]

Excellent stuff that Dynamat Andre thanks for the tip
I used it on my pioneer platter which had a distinct ring before but sounds dead as a dodo now

IMG_0010 by 337alant, on Flickr

Alan

Did the platter ring when a mat was placed on top? And does the turntable sound better for the damping?

[Stratmangler]

Where does one obtain it in the UK?

Marco.

Have you got a car parts shop nearby?
They're likely to have some.

[Andrei]

Excellent stuff that Dynamat Andre thanks for the tip
I used it on my pioneer platter which had a distinct ring before but sounds dead as a dodo now
Alan

Glad you liked it. Did your platter have any other damping underneath that you had to clear away?

Where does one obtain it in the UK?

Marco.

All sorts of sizes are available. The reason it comes in such large quantities is that it is used for cars. My chariot for example has all four doors and the boot lined with the stuff. Automotive retailers are likely to stock it. I have tried a couple of other brands, but they were not as effective. And if you do give it a go; the subspecies you ask for is Dynamat Extreme.

I was looking at a review of an item earlier today and they had used this material to deaden the case so seems there are more uses than just under platters
Regards Neil

Platter, Internally on the 1210 chassis, Cars where some put it under the carpet on the firewall between the front seats and the engine, computer case panels, on the bracing of speaker drivers. They also make a product that goes on the opposite facing internal wall of a car door speaker (could be used in a hi-fi speaker too I suppose). Not effective on politicians, noisy spouses and cats on heat.

[Marco]

Have you got a car parts shop nearby?
They're likely to have some.

Cheers, I’ll ask next time I’m in my local one. I’ll only be interested though if I can pick it up in small strips.

Marco.

[337alant]

Marco PM me what you need, I will send you some

Glad you liked it. Did your platter have any other damping underneath that you had to clear away?

Andrei, no it was a bare platter

Alan

[Ammonite Audio]

Sorry if this has been asked before, but how can you be sure to maintain correct dynamic balance when sticking on such damping materials? I've no idea if the standard platter is balanced, but it would seem sensible to avoid out of balance forces that would require the motor circuitry to work hard applying corrections.

[Andrei]

Yes this is discussed earlier in the thread. Jim (6L6) and Samuli (samursa) have both suggested materials that could be poured into the cavity. Samuli's pic at #49 shows the use of a spirit level. As I see it there are two benefits of this. First these material would ensure near perfect balancing; and second I imagine they would be easier to implement. I am certainly going to try it, as I have three spare platters, but I have a number of other projects on the go. It will be interesting to see if they are as effective at damping as dynamat.

[6L6]

Yes this is discussed earlier in the thread. Jim (6L6) and Samuli (samursa) have both suggested materials that could be poured into the cavity.

The Epoxy recommended to me by more than one pweson who has done it is this - http://www.westmarine.com/buy/west-s...2HwaAqIe8P8HAQ

Although you may need a bit more than that quantity...

[Ammonite Audio]

Yes this is discussed earlier in the thread. Jim (6L6) and Samuli (samursa) have both suggested materials that could be poured into the cavity. Samuli's pic at #49 shows the use of a spirit level. As I see it there are two benefits of this. First these material would ensure near perfect balancing; and second I imagine they would be easier to implement. I am certainly going to try it, as I have three spare platters, but I have a number of other projects on the go. It will be interesting to see if they are as effective at damping as dynamat.

I understand what has been done there, but static balancing is not the same as dynamic balancing. Would you balance a car wheel with a spirit level, and why do manufacturers usually take such trouble to carry out dynamic balancing of platters? The potential out of balance forces may be relatively small, but in vinyl replay the displacement and forces involved at the stylus are tiny.

[Marco]

Marco PM me what you need, I will send you some

Hi Alan, thanks for that. I’ll work out what I need (won’t be much - just a few strips) and let you know

Marco.