Inner tracks vs outer tracks

Almart1,
a linear tracking arm like the Kuzma Airline or the Eminent Technology 2 will help to solve your problems.
another approach is the UNIdin curve you get when buying a Smarttractor. This geometrical solution solves your problem much better than any other curves.

best
E.

Dear @thuchan : After all these years I’m sorry to say it but maybe because you still don’t understand the geometry algnment issue you are really wrong with your statements, especially that alignment option that in reality can’t help on the inner grooves distortions levels as you said.

You can look here about:

https://www.analogplanet.com/content/uni-din-versus-l%C3%B6fgren-b-just-clarify

there the Löfgren A alignment inner null point is at 66mm. against 63.3mm of the other alignment. Please explain how that makes not a true difference but is the solution for the OP?, even Löfgren B makes a good work at 70mm and way superior to " your " touted alignment all over the other parts of the LP surface grooves.


In the other side: how many LPs has the OP with grooves/recorded at the inner 70mm-60mm ?

Do it you a favor and read the last 3 posts in that MF thread linked.

Btw, after you understand the main geometry alignment subjects/characteristics you could easily " design " your own alignment and I mean it. Every one can do it.

So try to learn by your self because your statements means that after over 15 years you are " seated " in the same chair with out growing-up because you are and converted only in a " follower " ! ! but learned almost nothing. Are you satisfied with?

Do not do it through other people and remember that there is no single perfect solution for the cartridge/pivoted tonearm geometry alignment. Always exist trade-offs.

R.

Dear Raul,
the MF article is 6 years old.
Wally tried to determine UNI-DIN in the vinyl-engine calculator and tried to compare it with the stipulation of Loefgren. It is not only far away from reality, I guess Wally did not understand UNI-DIN (same with you?).

Mathematically and under the assumption that the tracking parameters were the same on each LP-side Loefgrens Euclidian Approaching would be correct! As either the one nor the other is correct the bases for the calculation is not right - especially not for Stereo!

UNI-DIN was accomplished on the bases of a Stereo-Microgroove LP. The Stereo track, nor 33 1/3 or 45 rpm existed at the time of Loefgren ´s calculation. The same for Baerwald.

When you want enjoying a LP with all tracks you better move to UNI-DIN, also regarding the last songs on the record.
MIchael Fremer knew why he did not prefer one of the curves at Wally´s miscalculation. Maybe today Michael would see it in a different light?

Best
E.

Dear @thuchan : With all respect and only trying to help you as I said you are a follower and geometry alignment is not rocket science. It’s extremely simple.

Because is plain geometry/mathematics any one can manipulates numbers and achieve a different alignment.

That’s what Stevenson did it and that’s what the SAT tonearm did it too.

It’s a way to achieve a perfect alignment? NO it can’t do it and those mathemathics explain you why you can’t do it.

Stereo or Mono the main issue does not changes because exist a length in the LP surface, exist the recorded LP area, exist a begin of the recorded grooves ( this is the most out side groove. ), exist too a end recorded groove ( most inner groove ), exist the pivoted tonearm,etc, etc

Al those does not changes and it does not matters what you want to do you must take in count that most inner/outer grooves distances to make your calculations ( stereo or not. ). Maybe you can ake other " road " but at the end:

the main subject for the alignment calculations ( any kind. ) in any pivoted tonearm is to obtain the overhang and off-set angle to mount in accurated way the cartridge to the tonearm and the tonearm in the TT.

From where do you think comes the null points? do you know which is the use of those null points? do you know from where comes the tracking distortion numbers over the LP recorded surface? why exist the inner/outer most grooves different standards as: IEC, DIN or JIS that achieve different calculations alignment parameters values?

Do it a favor and find out by your self the rigth answers to those questions with out ask any one and you can be sure that when you achieve the rigth answers then you already understand in deep the alignment subject.

That’s all and till today you still just can’t understand it ( because I think that you not even intented to do it. ) and if you follow been a " follower " ( yes I know that him told you discovered the " black thread ".) you will live your audio life deseiving in this specific subject. Is up to you.

Regards and enjoy the MUSIC NOT DISTORTIONS,
R.

""  When you want enjoying a LP with all tracks you better move ....., also regarding the last songs on the record. ""

that is a confirmation that even that chart/diagram in the link you can follow it to take in count why you are wrong with your kind of statements..

Dear @thuchan : With all respect and only trying to help you as I said you are a follower and geometry alignment is not rocket science. It’s extremely simple.

Because is plain geometry/mathematics any one can manipulates numbers and achieve a different alignment.

That’s what Stevenson did it and that’s what the SAT tonearm did it too.

It’s a way to achieve a perfect alignment? NO it can’t do it and those mathemathics explain you why you can’t do it.

Stereo or Mono the main issue does not changes because exist a length in the LP surface, exist the recorded LP area, exist a begin of the recorded grooves ( this is the most out side groove. ), exist too a end recorded groove ( most inner groove ), exist the pivoted tonearm,etc, etc

Al those does not changes and it does not matters what you want to do you must take in count that most inner/outer grooves distances to make your calculations ( stereo or not. ). Maybe you can ake other " road " but at the end:

the main subject for the alignment calculations ( any kind. ) in any pivoted tonearm is to obtain the overhang and off-set angle to mount in accurated way the cartridge to the tonearm and the tonearm in the TT.

From where do you think comes the null points? do you know which is the use of those null points? do you know from where comes the tracking distortion numbers over the LP recorded surface? why exist the inner/outer most grooves different standards as: IEC, DIN or JIS that achieve different calculations alignment parameters values?

Do it a favor and find out by your self the rigth answers to those questions with out ask any one and you can be sure that when you achieve the rigth answers then you already understand in deep the alignment subject.

That’s all and till today you still just can’t understand it ( because I think that you not even intented to do it. ) and if you follow been a " follower " ( yes I know that him told you discovered the " black thread ".) you will live your audio life deseiving in this specific subject. Is up to you.

Regards and enjoy the MUSIC NOT DISTORTIONS,
R.

"" When you want enjoying a LP with all tracks you better move ..., also regarding the last songs on the record. "

in the chart/diagram of the link you can SEE that your statement is not true.

Btw, do you know that the SAT tonearm manipulated alignment gives you better " numbers " that all those alignments.? with lower distortion levels?

NOW, if you are so sure about then please share with all of us a comparison between " your " alignment and Löfgren or SAT or what ever one of its distortion levels over the recorded LP surface. Easy, please do it. Appreciated.

@thuchan , we don't need explanations but numbers>/facts: hard numbers. Got it?