Vinyl Asylum

• RE: Is there a stylus guide of "least damage" to vinyl? - goldenthal 06:37:05 09/28/16 (3)
  In Reply to: RE: Is there a stylus guide of "least damage" to vinyl? posted by flood2 on September 28, 2016 at 01:09:26

  Flood2:
  
  My limited experience tends to accord with your suggestion that Shibata produces h. f. distortion and does so even though the profile was devised to allow greater ease of tracking higher frequencies. In that sense, I have not found the few Shibatas of my (somewhat dated) experience to be "euphonic" -- i.e., the distortion did not add beauty.
  
  Are MicroLine and MicroRidge the same thing?
  
  Thanks,
  
  
  Jeremy
  

  ---

  • RE: Is there a stylus guide of "least damage" to vinyl? - flood2 15:01:10 09/28/16 (2)
    In Reply to: RE: Is there a stylus guide of "least damage" to vinyl? posted by goldenthal on September 28, 2016 at 06:37:05

    Hi
    
    MicroLine, SAS (Super Analogue Stylus as named by JICO) and MicroRidge are variations of the same basic design. There are subtle differences in the bearing radius and "ridge" thickness (the patent is fairly broad and specifies a wide range for the scanning dimension between 0.5um up to 15um - the lower limit being restricted by the mechanical strength of the ridge feature) and polish.
    The Shure MicroRidge has a slightly larger scanning dimension of 0.15mil (3.8um) vs 0.12 mil for the MicroLine. The bearing radius is 3.0mil (76um) for the MicroRidge. The bearing dimension of the MicroLine is not disclosed in the specifications provided by AT but the range is typically between 70 to 80um.
    
    The Shibata revival really puzzles me! The alignment of the tip is particularly tricky not just in use, but in manufacture - the contact line (curving aside) is not on the central axis line from the centre of the shank to the apex, it is slightly in advance (hence the curved line). Therefore the SRA is actually defined by the cut - one cannot use the USB microscope method which sets the shank/tip angle. I don't know how consistent the cuts can be made, but any lateral asymmetry will not only automatically introduce a zenith error, but potentially different effective rake angles in the channels. The "rake" angle of the tip itself in the cantilever can further introduce an error on top of this.
    It is a very challenging tip to get to work optimally and it is readily beaten in technical capability by the more modern designs.
    
    Regards Anthony
    
    "Beauty is Truth, Truth Beauty.." Keats
    
    

    ---

    • Superbly clear explanation, Anthony! nt. - MWE 17:08:25 09/29/16 (0)
      In Reply to: RE: Is there a stylus guide of "least damage" to vinyl? posted by flood2 on September 28, 2016 at 15:01:10

      nt.
      
      Mark in NC
      "The thought that life could be better is woven indelibly into our hearts and our brains" -Paul Simon
      
      

      ---
    • RE: Is there a stylus . . . Thank you, Anthony! (nt) - goldenthal 11:49:18 09/29/16 (0)
      In Reply to: RE: Is there a stylus guide of "least damage" to vinyl? posted by flood2 on September 28, 2016 at 15:01:10

      n
      

      ---

Post a Followup:

This post is made possible by the generous support of people like you and our sponsors:

VH Audio

---

[ Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2024, Audio Asylum, all rights reserved ]

---

[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]

---