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Dynamics varying with track position.

I’m finding that dynamics and timbre improve as the cartridge moves toward the inner 1/2 of the album. Running a DL 103r.  Aligned on my 303 arm with Regan paper protractor.  Also a slight emphasis on the left channel. Tried realigning/ checking overhang and I’ve heard no change.  Also checked the alignment with the Ortofon guide. Any one have a thought on the cause or remedy for this?
thanks. 
Lou
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nandric's avatar
nandric
4,086 posts
 

Anti-skate related distortion (should) start in the right channel.

Increasing the anti-skate will increase the tracking ability. However

Van den Hul warned against ''too much'' anti-skate by trying

to get + 60 microns (pure). Aka: better no skate at all than too

much. I moved to the ''other side'': no anti-skate at all.

lwal22's avatar
lwal22 OP
76 posts
 
Alignment checked out with the DB so I  began trying antiskate changes. The issue cleared up entirely.  Oddly the best result comes from nearly 0 antiskate on the Rega.  I suspect the magnet/ slider is seriously miscalibrated. Since it’s sounding balanced now, I’ll leave that alone.
thx  
yogiboy's avatar
yogiboy
5,661 posts
 
+1 anti-skate problem. Try readjusting it!
lwal22's avatar
lwal22 OP
76 posts
 
Thanks for the insight. I’ll check the alignment with a dB systems available to me. If I don’t get improvement I’ll spring for a mirror alignment tool. 
The azimuth adjustment is tough with the rega arm. Any reason to suspect it’s off?
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cleeds
5,947 posts
 
I agree with @stringreen - it sounds like improper setup. A paper template is simply insufficient. The best and most accurate gauges use a mirror to align not the phono cartridge, but the cantilever/stylus itself. Using anything less than that is a hit-or-miss proposition.
roberjerman
4,319 posts
 
Lowest distortion will be at the two null points - where the stylus is MOST tangent to the grooves. This applies to ALL pivoted arms! The emphasis on the left channel could be a problem with the anti-skate mechanism on your tonearm. Try adjusting it for more or less force while listening. 
stringreen's avatar
stringreen
6,468 posts
 
It really sounds to me like your setup is wrong.   If you downloaded the paper template, and printed it, very often printers aren't accurate at all.  Get a DB alignment gizmo or similar....and recheck your work.
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