Dear @mijostyn : " most people do not know what P2S means. "
As a fact and even that in this forum some of us were discussing in deep the tonearm/cartridge whole alignment set up still today exist a misunderstood in some alignment issues. It's easy to have some kind of misunderstood about.
The alignment per sé is an " open " scenario to have even personal and dedicated alignment only for our tonearms.
The foundation for the alignment calculations are 3 parameters ( inputs to the Löfgren equations. ): tonearm effective length and most inner and outer groove distances.
So we can manipulate/change one or even those 3 parameters and we " discover " our personal alignment.
Everything depends on what could be our specific targets, where we want the tracking distortions " lives " and its levels in favor of lowering some way even if we can detect it the changes.
SAT tonearm designer is what he did it changing the most inner groove distance parameter and that's why the tonearm comes with a dedicated/special protractor because null points are not the Löfgren standard.
Changes in EL works too if the headshell slots permit to do it.
Then we can choose for different parameters and choose between Löfgren A or B, each one with its own in theory trade-offs.
"" By the way, Lofgren B is the way to go:-) ""
But choosing between Löfgren A or B it's only an illusion that works only in theory/c/paper.
Example: EL 300mm. overhang difference between both alignments is only 0.38mm ( longer the B alignment. ) and if EL is 256mm. that difference goes to 0..45mm. The offset angle is the same in both kind of alignments.
So we are playing with a P2S accuracy level of at least 0.38mm. to make the set up and with the same difference in the overhang. We have two points where we always are off.
So the best we can " wait " for is to be around the alignment and with higher distortions levels that what comes through calculations and this is the true " game " we are platying and discussing.
R.
As a fact and even that in this forum some of us were discussing in deep the tonearm/cartridge whole alignment set up still today exist a misunderstood in some alignment issues. It's easy to have some kind of misunderstood about.
The alignment per sé is an " open " scenario to have even personal and dedicated alignment only for our tonearms.
The foundation for the alignment calculations are 3 parameters ( inputs to the Löfgren equations. ): tonearm effective length and most inner and outer groove distances.
So we can manipulate/change one or even those 3 parameters and we " discover " our personal alignment.
Everything depends on what could be our specific targets, where we want the tracking distortions " lives " and its levels in favor of lowering some way even if we can detect it the changes.
SAT tonearm designer is what he did it changing the most inner groove distance parameter and that's why the tonearm comes with a dedicated/special protractor because null points are not the Löfgren standard.
Changes in EL works too if the headshell slots permit to do it.
Then we can choose for different parameters and choose between Löfgren A or B, each one with its own in theory trade-offs.
"" By the way, Lofgren B is the way to go:-) ""
But choosing between Löfgren A or B it's only an illusion that works only in theory/c/paper.
Example: EL 300mm. overhang difference between both alignments is only 0.38mm ( longer the B alignment. ) and if EL is 256mm. that difference goes to 0..45mm. The offset angle is the same in both kind of alignments.
So we are playing with a P2S accuracy level of at least 0.38mm. to make the set up and with the same difference in the overhang. We have two points where we always are off.
So the best we can " wait " for is to be around the alignment and with higher distortions levels that what comes through calculations and this is the true " game " we are platying and discussing.
R.