Dear @chakster : Professional or pro industry works with " tools " according to its needs. Technics, Denon, EMT, etc figthed for that market and that's why appeared the SP10s or the DP100M with built-in phonopreamp/speaker. Before these models and along other names that market was extremely competitive due the grow up of that market all over the world not only in Japan.
The pro-model manufacturers wanted to take as many costumers as they can with more atractive items for that partuicular kind of customers where they need it trusty/confident items with the capacity to works 24 hours seven day a week year after year with very low maintenance. All these means high build quality but they were not looking for the penultimate accuracy in the frequency response or cartridge tracking habilities or to be truer to the recording.
No one of them used top cartridge models as : Accuphase AC-2 or Audio Note IO or Audio Technica AT1000. Tonearms as the own Technics EPA 500 or Audio craft or Micro Seiki.
SAEC tonearms are very good looking tonearms that were builded with very high quality excecution but never been and never be a top tonearm design because that bearing type in the audiophile market where pro-industry does not belongs. Forgeret about but if you want to really know on the 506 then buy one and finish your " story " where you made a no-sense conclusions.
Better than that please do it a favor and due that you listen mainly to 7" size recordings then take this alignment parameters for your 64FX tonearm that will give you the lower tracking error with the lower distortion levels for a 7" recordings :
P2S: 238.55mm ; offset angle: 15.294° ; overhang: 8.45mm
the alignment is Löfgren A ( Stevenson gives no single advantage even with this special alignment. ) dedicated for that size recording and only as an example the tmaximum racking error goes down from: 1.9°-2.1° to only 0.36° that's outstanding and then way lower tracking distortion levels.
I hope your tonearm permits to mount it and mount the cartridge exactly with those parameters.
Good luck,
R.
The pro-model manufacturers wanted to take as many costumers as they can with more atractive items for that partuicular kind of customers where they need it trusty/confident items with the capacity to works 24 hours seven day a week year after year with very low maintenance. All these means high build quality but they were not looking for the penultimate accuracy in the frequency response or cartridge tracking habilities or to be truer to the recording.
No one of them used top cartridge models as : Accuphase AC-2 or Audio Note IO or Audio Technica AT1000. Tonearms as the own Technics EPA 500 or Audio craft or Micro Seiki.
SAEC tonearms are very good looking tonearms that were builded with very high quality excecution but never been and never be a top tonearm design because that bearing type in the audiophile market where pro-industry does not belongs. Forgeret about but if you want to really know on the 506 then buy one and finish your " story " where you made a no-sense conclusions.
Better than that please do it a favor and due that you listen mainly to 7" size recordings then take this alignment parameters for your 64FX tonearm that will give you the lower tracking error with the lower distortion levels for a 7" recordings :
P2S: 238.55mm ; offset angle: 15.294° ; overhang: 8.45mm
the alignment is Löfgren A ( Stevenson gives no single advantage even with this special alignment. ) dedicated for that size recording and only as an example the tmaximum racking error goes down from: 1.9°-2.1° to only 0.36° that's outstanding and then way lower tracking distortion levels.
I hope your tonearm permits to mount it and mount the cartridge exactly with those parameters.
Good luck,
R.