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Old 29th October 2013, 02:58 PM   #31
kevinkr is offline kevinkr  United States
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Last time I checked they did not have any available. Thanks for the heads up!

No option for shipping outside of Europe, and my Dutch is not very good frankly.
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Old 31st October 2013, 09:18 AM   #32
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Default Standard test

It would be good if we a DiyAudio could come up with a simple standard test for measuring rumble. The everyone could compare apples with apple.
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Old 1st November 2013, 08:01 PM   #33
volken is offline volken  Netherlands
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Not so simple you need a decoupled measurement table otherwise you measure ambient vibrations !

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Old 1st November 2013, 11:15 PM   #34
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Quote:
Originally Posted by volken View Post
Not so simple you need a decoupled measurement table otherwise you measure ambient vibrations !

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Yes. When I took possession of the Minus-K platform, I thought that the isolation it afforded would make it possible to attain valid points of reference for noise measurements.

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Old 4th November 2013, 10:05 PM   #35
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Only valid measure of rumble is for that picked up by cartridge, thus platter must be in motion, and stylus in contact.
I remember a trick of building up a thickness of coins on the arm board and gently placing the cartridge onto the stack and turning on the motor.
Check the bass speaker cones, they could be flapping around producing watt draining subsonic bass.
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Old 5th November 2013, 01:28 AM   #36
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When arm board is 400 pound block of granite this doesn't work so well. This is also basis for super heavy platters.
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Old 5th November 2013, 11:20 AM   #37
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Originally Posted by Barleywater View Post
When arm board is 400 pound block of granite this doesn't work so well. This is also basis for super heavy platters.
What about those discs that contain rumble, many did?
It all seems too much work trying to convert a cement mixer.
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Old 7th November 2013, 10:32 AM   #38
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Default You do not need to go into rocket science

Yes there are many many variable, however if we at DIYAUDIO had a standard procedure then we could set up a bench mark.
However there is no standard procedure so we keep comparing oranges with apples.
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