The Good Turntable

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#186
Quote "The original mat is a heavy and thick rubber mat. It sounds muddy and overdamped, and may be appropriate when loudspeakers with excess treble output are to be compensated.
The Loricraft cork mat is a two piece thing consisting of a normal round cork mat and a cork ring covering only the groove area of the record. The Loricraft mat is considerably better than the standard rubber mat, and provides a cleaner presentation, less damped and more precise. "
 
#187
There are several varieties. At the end of the day it is a system and the task is to orchestrate it. It is the result that counts.
The measurements taken also gave the least amount of speed variation over time ever measured, the idler also gives tremendous pace and rhythm.
The motor that drives the idler in Martinas table floats the spindle, the bearings of the idler wheel are precision ruby made by an east german watchmaker....
 
#188
For a long time I used an 'ART' (The Italian company, not the UK company) graphite mat. I used a thin cork 'inter-mat' and the results were excellent.

I am at present rebuilding a Lenco and intend using a 2.5cms solid carbon 'carpet' (Thicker than any mat!!). ( I also have a solid graphite 'ART" clamp-weight).
 
#190

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#191


The AT-2 Record Playing System features "platterless playback". The platter is replaced by a metal flywheel with knife-edge machinings to support the record beneath the label area. The playing surface of the record couples to air on top and bottom.
....
Overlooked by most, the twelve inch diameter of the typical record makes it an increasingly ideal half-wave coupler of acoustic energy from the lower mid-range up, and improving as the frequency rises. The record naturally dissipates vibrations, particularly at the levels and frequencies that they occur, to air. Thus air becomes the absorbent "platter", the only substance that does not give energy back to the record. The reproduction of music is open, dynamic, remarkably natural. The AT-2 has become a collector's item.
Click to expand...

At some point in the 80s I think Ken Kessler was using 3 Rolex watch crowns to lift the record off the platter, he may have latter upgraded to Breitling or Tag Hauers 🙂

Regards
James
 
#195
Meitner,s quote about not Giving anything back to the record leaves the vinyl vulnerable to all other airborne waves, top and bottom!, affecting the surface that would be absorbed and unable to respond if coupled securely to anything heavier than itself.
Air IS a transmitter of energy and not easily dimissed.
Even though its clamped around the lable and rigid, (a necessity to counteract a bad idea
IMO) with anything less than a High compliance V15 Shure, you might not hear anything amiss on a 150 gram record
 
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