With any of the four cartridges you mention, (I'm including the 47, though I really don't know it) you'll want to make accurate VTA/SRA settings and/or adjustments on a regular basis probably.
That limits the choice of arms to either the Tri Planar (gimbal) or the Graham 2.2 or Phantom (unipivot) for easy adjustment as far as pivoting arms go. And I don't think any of the few straightline trackers currently in production offer any advantages in the VTA/SRA adjustment department, and some of your cartridge choices may not work with them at all for effective mass mismatch reasons.
Anyone want to add good (meaning: easy to make adjustments, preferably on the fly) alternatives to the Tri Planar or Graham? Please do.
TTs? Too many good ones, though if you're planning to run multiple arms, Raul will probably tell you to find a used
Micro Seiki ;~))
That limits the choice of arms to either the Tri Planar (gimbal) or the Graham 2.2 or Phantom (unipivot) for easy adjustment as far as pivoting arms go. And I don't think any of the few straightline trackers currently in production offer any advantages in the VTA/SRA adjustment department, and some of your cartridge choices may not work with them at all for effective mass mismatch reasons.
Anyone want to add good (meaning: easy to make adjustments, preferably on the fly) alternatives to the Tri Planar or Graham? Please do.
TTs? Too many good ones, though if you're planning to run multiple arms, Raul will probably tell you to find a used
Micro Seiki ;~))