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
What? It seems to me your process is far more tedious. Once you've set all other adjustments, it's simply a matter of tuning in the particular record. Similar to tuning a station on the radio. You can hear the sweet spot fade in and out as you tune forward and back. There is no better way. It may be anal if you care that much, but it's certainly not "retentive". If you have not tried this method, it will seriously enlighten you if you do. But you need a tone arm that allows it.
Don_c55, I think what most people are adjusting for with fine VTA adjustment is actually proper overhang. Adjusting VTA will change overhang slightly. IME overhang adjustments make more difference than SRA adjustments. This is just a theory and I have no hard evidence to support it but it is my suspicion. Not to say SRA does not make a difference because it does. I just think fine VTA adjustment has more to do with dialing in overhang than it does with dialing in SRA.

Sean
Csontos, I don't think so but you could say the same thing about SRA as well. What percentage of 1 degree of SRA is adjusted for with fine VTA adjustment?
I'd say it's pretty well infinite. But the change in overhang as a result is so exponentially minute as to be irrelevant once it's been set with VTA in the ballpark.