Dear @slaw : There are several LP’s that comes with dificult grooves to track NOT ONLY at the very inner grooves ( last 5-6mm ) where we can listenig using Löfgren A or B vs Stevenson.
Example: the Reference Recording Symphonic Dances comes with those " cresendos " way before the middle of the LP, Refrenece Recording Dafos ( Gate of Dafos track. ) almost the same: first part of the LP surface.
Mercury Firebird with the big drum attack at the middle. Reference Recording Berlioz Symphonie Fantastique where the high velocity recorded grooves are at the end but at the middle too.
The Telarc 1812 has not dificult recorded grooves at the inner grooves ( last 5-6mmm that’s where <<stevenson " works " ), it has several passages all over the LP surface.
Pictures at an exibition or Nigth Bald Mountain st several passages recorded at high velocities and not necessary in the low bass range.
As a fact exist several recordings where the hard task comes with mid and high frequency ranges at different LP surface areas. Many piano LPs recordings are dificult to track it and produce high distortions.
Now, when the cartridge/tonearm has dificult to track some LP grooves and these are at the inner grooves what we can do to find out which the problem we need to make this test ( obviously that the TT/cartridge/tonearm set up must be accurated. ): we listen to the LP in normal condition ( all the LP. ) after the side finished we clean perfectly the LP and the stylus tip and listen again only to those inner grooves and normally the tracking improves with lower distortion levels.
Why normally those happens?, well even if we can’t see any sign of dust in the stylus tip after only one LP side exist microscopic dust accumulated down there and this very tiny quantity of dust goes against the tracking abilities of the cartridge especially in the high velocities recorded grooves an increment distortion levels.
High velocities recorded grooves are hard to track it does not matters at what place in the LP surface. As I said piano can gives problems but trumpet or other " easy " instruments different of drums/percussions/organ makes its " job " challenging the cartridge rides. It does not matters either the kind of alignment choosed.
Regards and enjoy the MUSIC NOT DISTORTIONS,
R.
Example: the Reference Recording Symphonic Dances comes with those " cresendos " way before the middle of the LP, Refrenece Recording Dafos ( Gate of Dafos track. ) almost the same: first part of the LP surface.
Mercury Firebird with the big drum attack at the middle. Reference Recording Berlioz Symphonie Fantastique where the high velocity recorded grooves are at the end but at the middle too.
The Telarc 1812 has not dificult recorded grooves at the inner grooves ( last 5-6mmm that’s where <<stevenson " works " ), it has several passages all over the LP surface.
Pictures at an exibition or Nigth Bald Mountain st several passages recorded at high velocities and not necessary in the low bass range.
As a fact exist several recordings where the hard task comes with mid and high frequency ranges at different LP surface areas. Many piano LPs recordings are dificult to track it and produce high distortions.
Now, when the cartridge/tonearm has dificult to track some LP grooves and these are at the inner grooves what we can do to find out which the problem we need to make this test ( obviously that the TT/cartridge/tonearm set up must be accurated. ): we listen to the LP in normal condition ( all the LP. ) after the side finished we clean perfectly the LP and the stylus tip and listen again only to those inner grooves and normally the tracking improves with lower distortion levels.
Why normally those happens?, well even if we can’t see any sign of dust in the stylus tip after only one LP side exist microscopic dust accumulated down there and this very tiny quantity of dust goes against the tracking abilities of the cartridge especially in the high velocities recorded grooves an increment distortion levels.
High velocities recorded grooves are hard to track it does not matters at what place in the LP surface. As I said piano can gives problems but trumpet or other " easy " instruments different of drums/percussions/organ makes its " job " challenging the cartridge rides. It does not matters either the kind of alignment choosed.
Regards and enjoy the MUSIC NOT DISTORTIONS,
R.