Stylus Rake Angle


I am trying to set up my new VPI 3D arm as close to perfection as I can. On the Analog Planet, Michael Fremer gives one opinion, however, a different opinion was voiced by Harry at VPI, and Peter at Soundmith. I've been discussing this with them....Fremer says that SRA should be adjusted even if the back end of the arm is WAY high up as needed, whereas Harry, and Peter said to start with the arm in a horizontal position and move it slightly up and down to find the sweet spot. Peter said that my cartridge (Benz LPS) and some others have an additional facet in the diamond so bringing the arm up in back would be exaggerating the proper SRA. When I wrote back to Fremer, he answered with an insistance that he was correct. Does anyone want to add to the confusion??
128x128stringreen
None of you explained the mechanism, only why it is a good thing. I agree it is a good thing. After thinking about it last night (what I do in the dark before sleep), I decided maybe it has to do with how music is encoded in the groove vis how the stylus contacts the groove and is thus able to translate physical undulations in the groove into an audio signal. The relation between the stylus geometry and those undulations might be the critical factor. I could imagine how that might effect what some would call "timing". But I don't think it's really timing by the formal definition of same.

Also, I commend you (plural) and anyone else who can confidently distinguish first order harmonic tones from the fundamental. As a (part-time amateur) singer, I can tell you that is no easy thing even in a live venue. The brain doesn't really care a lot about that first octave of tonal difference. (Why sometimes if my pianist starts out an octave too high, I will go right along with him, until I realize that the high notes are going to be out of my vocal range.)
Good 'transient' performance is always easily distinguishable from poor transient performance. It really is the final goal and distinguishable difference we hear when successfully correcting set-up errors. It's not a matter of our ability to isolate first order harmonics when timing is right. It's a matter of the natural ability of our brain to recognize when it's not. It's when we hear the difference that we then recognize correct timing in comparison.
Yes, but "timing" per se is the job of the turntable. The turntable provides the "X-axis" for the music, which is time. Who could argue that correct time is not important? Not me.