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Old 22nd September 2010, 06:17 PM   #11
a.wayne is offline a.wayne  United States
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Wow beautiful ......... truly !!!


Question ? Why an acrylic platter , what are the advantages ?
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Old 22nd September 2010, 08:57 PM   #12
wjlamp is offline wjlamp  Greece
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Originally Posted by a.wayne View Post
Wow beautiful ......... truly !!!


Question ? Why an acrylic platter , what are the advantages ?

Because acrylic,has a similar sound character to the vinyl,compared to various metals used for platters.That means, that the mechanical energy generated by the stylus pressure in the grooves of a disc, is absorbed by the platter,and doesn't reflect back to the disc and the stylus. Other materials like rubber,felt,glass,cork,etc,have differing acoustic impedances to the vinyl,and are frequency selective.As you know everything has its own resonance.Acrylic seems to be more linear than the others for that use.
You can easily hear it by substituting platter mats,on a record player.
However,which is best,is in the ear of the beholder.

B.L
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Old 22nd September 2010, 11:03 PM   #13
3GGG is offline 3GGG  Australia
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And it looks cool!
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Old 22nd September 2010, 11:08 PM   #14
Salas is offline Salas  Greece
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There is a vinyl disc mat, which is actually a record with no grooves and a suppressed label area so the LP snuggles better when wresting on it. A mate has it, argues it was his best. Even tried drummer's 12 inch practice silencers. In my case a classic carbon anti static mat proved nicely non detectable. Our platters are dense organic but not acrylic.
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Old 23rd September 2010, 02:21 AM   #15
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I agree it certainly looks cool. The diy tables being built are inspiring, including yours. Great work, I bet it sounds great. What are your perceptions/opinions so far in that regard.
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Old 23rd September 2010, 03:31 AM   #16
3GGG is offline 3GGG  Australia
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Thak you for the kind words SGregory. Unfortunately I dont have a cartridge or phono stage as od yet so no listening for me! I hope to have it up and running soon.
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Old 23rd September 2010, 04:14 AM   #17
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Are you putting a 103R on it?
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Old 23rd September 2010, 05:48 AM   #18
3GGG is offline 3GGG  Australia
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Sure am. Hope it is good. I will get the broken one retipped but the time to wait was too great for now.
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Old 23rd September 2010, 07:07 AM   #19
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Great work!Enjoy your work of art!What you state about the resonance of turntable platters
regarding their materials is true if you stick to one material.
Everything changes when a sandwich of different materials is used as their different
resonance characteristics counteract leading to different (and usually better)
sonic results.The best mat i have seen was (is?) made by Verdier (France) that is
from thick rubber mixed in the melting process with lead powder...
Of course Verdier uses all metal platters...
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Old 23rd September 2010, 07:09 AM   #20
vgeorge is offline vgeorge  Greece
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Originally Posted by 3GGG View Post
The speed control works beautifully and is housed below the motor on the slate motor/speed control housing. The platter get up to full speed within a few seconds, then reduces its voltage output for a smooth ride.
Could you please give us more details on the speed controler you used?
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