9", 10" or 12" tonearm?


Can anyone explain why many analog aficionados like or dislike 12" tonearms? What is the main sonic difference between a 9 or 10" tonearm and a 12" one? Is the 12" dogma outdated? I must say that in the past there were more 12" designs (SME 3012, SAEC, Audiocraft) than nowardays. Is 12" for "audiophools" with strong nostalgic feelings (like me)? (Especially when combined with those old Denon 103 or Ortofon SPU).
dazzdax

Showing 1 response by rauliruegas

Dear Sdcampbell: I agree with you, but:

+++++ " the longer arm may provide less tracing distortion, and therefore better sound, than the shorter arm. " +++++

The theory told us that that statement is true. In three of my tonearms where you can interchange arm wands ( pipes ) : Audiocraft AC4400/3300, Micro Seiki MAX 282/237 and Moerch DP-6, I own and used long and short arm wands trying to " see " if there are any improvements on the long ones: till today I never find that the longest had less distorted sound, there are very slightly differences in the sound that I think is for a diferent resonance point due to the diferent effective mass of the arm wands. I can't tell of those diferences like a " better sound ".

All these tonearms and the today top tonearms are very well made and it is very dificult by " ear " to tell if the theory be fullfiled on practice.

Other points are that a longer tonearm has its own problems about: torsion forces and slightly high self resonances due to its " long " and bearing " forces " diferences against a short one .

I think that if exist a good tonearm design and a good execution design both type of tonearms: short and long, perform always almost the same.

Regards and enjoy the music.
Raul.