Hi Nandric,
you said
For most alignments there are three maxima (Stevenson being a special case). Typical distortion values for these are (for a 230 arm) 0.65% for the three equal LogrenA/Baerwald IEC maxima and 0.42% average across the side.
For Lofgren B IEC the average is 0.38% but the maximum is now 1% at the innermost groove.
For DIN alignments, there is more distortion when playing a DIN LP but less at the inner grooves when playing a IEC LP. This is why I chose a DIN alignment 30 years ago.
Dertonarm's Uni-DIN alignment is a variation on this which reduces the inner maximum to 0.5% for DIN LPs and lowers the middle max to 0.5% while increasing the outer max to over 1%.
John
.
you said
But there must be
the corresponding max. distortion at some other 'points'.
Well it seems to me that we should worry about those also.
I have never seen any numerical values for those in this forum. It may be the case that while I feel 'proud' about my own selection of the zero points my records are in a
sade state because of my choice?
For most alignments there are three maxima (Stevenson being a special case). Typical distortion values for these are (for a 230 arm) 0.65% for the three equal LogrenA/Baerwald IEC maxima and 0.42% average across the side.
For Lofgren B IEC the average is 0.38% but the maximum is now 1% at the innermost groove.
For DIN alignments, there is more distortion when playing a DIN LP but less at the inner grooves when playing a IEC LP. This is why I chose a DIN alignment 30 years ago.
Dertonarm's Uni-DIN alignment is a variation on this which reduces the inner maximum to 0.5% for DIN LPs and lowers the middle max to 0.5% while increasing the outer max to over 1%.
John
.