Dear @noromance : " No one appears to have mentioned the sound quality with regards to AS. I find that the music sounds less restrained with no AS applied .."
I’m in agreement with your statement by first hand experiences with different cartridges/tonearms and how its quality level performance really improves and this at the end is what it counts.
I think that almost all audiophiles as us several years ago were educated to use the AS in our pivoted tonearms. Even in those old days the advise was " to ste up the AS tonearm at the same value of VTF " and in those old times the cartridge/tonearm manufacturers was ok with.
I remember my AT 1100/1010 ( both very good tonearms ) where the AS was handled by string/weigth and its AS mechanism you need to choose 3 AS positions according the stylus tip: conical, ellipthical and LC and was AT who years latter told me that the AS must be no higher than the 50% of VTF but almost no one but VPI manufacturer just disappeared the AS and several of us were and even today are against the VPI design,
Now, which is the specific role of any cartridge/tonearm during LP play?, I think is to pick-up all the grooves information it can and everything the same what could and can make a differences for the better in the cartridge and in the tonearm? :
cartridge tracking abilites and very low friction in the tonearm bearing, that’s that the stylus/cantilever movements following the grooves been free of additional natural forces developed down there and the AS tonearms mechanisms are not a " natural force " and this AS impedes that natural cartridge/cantilever movements.
What almost all the technical oriented gentlemans posted before have some sense but the reality is that with or with out AS the today very good polished different shapes stylus tip gone play by play suffering a natural wear and we start to listen that stylus tip wear after/around the first 800 hours of playing and today almost all audiophiles own over 2-3+ cartridges. So before that playing figure we just do not " noted " the stylus tip wear and that’s just worn and maybe ready to re-tip.
"" The sound of alleviating this force is unmistakable: more relaxed sound, larger soundstage, more overall coherency and intelligibility. ""
No doubt about. Nothing is perfect in audio and on the AS issue it’s better don’t use it there are other issues that in reality benefit the listening sound but not the AS. Just try it and you can be sure that if you listen distortions as lewm then something is wrong down there cartridge/tonearm.
Yes I was surprised the very first time I did not use the AS and till today there is no way to come back t AS.
Regards and enjoy the MUSIC NOT DISTORTIONS,
R.