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Pickup SRA - starting from a 500x microscope

I am not sure if my Lyra Atlas has the right SRA. Can other owners contribute? I have bought a 500x usb microscope, but it remains hard to find the exact angle. It is easy to get the angle of the record (or platter - I use a mirror), but very hard to get the angle of the stylus. I use the Cooling Tech software but it does not solve my problems. Trying to estimate the angle I cannot set the crosses sufficiently exact, and end up with values like 88, 90, 94 - varying all over the place.
I have only taken a few pictures so far, and could perhaps improve them. Tips and info welcome.
o_holter

Showing 5 responses by sunnyboy1956

sunnyboy1956's avatar
sunnyboy1956
424 posts
 
Interesting that the OP is trying to figure out a method for setting the correct 92deg SRA on an Atlas yet the venerable Mr Carr at Lyra ( for whom I have the highest respect and admiration) is not a great fan of SRA.
A bemused Atlas owner !
sunnyboy1956's avatar
sunnyboy1956
424 posts
 
Dear Mr Holter, my apologies if my comments appear to be derisive or dismissive of your efforts. That was not intended. As an Atlas owner all I was trying to suggest was that you can achieve great if not spectacular sound with your Atlas without obsessesing about SRA. I made no reference to VTA. SRA and VTA are not identical or even interchangeable terms. There are many who believe that the efficacy of SRA is overrated notwithstanding it's advocacy by MF. YMMV
All the best
sunnyboy1956's avatar
sunnyboy1956
424 posts
 
http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1398564021&openflup&5&4
Try this
Cheers
sunnyboy1956's avatar
sunnyboy1956
424 posts
 
If I can add my 2 paise worth. If the broad range for acceptable SRA is 90-95 deg, it doesn't require too much geometry to figure out that the cartridge body or tone arm underside will be parallel to the record surface. That's the starting point for most non SRA aficionados to start tweaking for optimal results. IOWs junk the usb microscope and NJoy the music.
Cheers
sunnyboy1956's avatar
sunnyboy1956
424 posts
 
Dear Mr Graves
I really enjoyed reading your comments. Superb post. If SRA can cause such excitement, than surely all is well in this hobby that we love and enjoy.
Cheers
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