Help... my turntable is alive!
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Never thought about it before but here's my take on it : if one considers that the pivot is the primary means of adjusting VTA and that the movement is constrained to the vertical axis, if one assumes that "horizontal"/"neutral" VTA is effectively "zero" on that axis then raising the arm is deemed a "positive offset" while lowering the pivot is deemed a "negative offset". It is possible that this is where the expressions have been formed. If viewed in this way there is a logic to each statement even though you may not strictly be able to "Google" the origin of such a "convention"? |
moonglum ... if one considers that the pivot is the primary means of adjusting VTA and that the movement is constrained to the vertical axis, if one assumes that "horizontal"/"neutral" VTA is effectively "zero" on that axis then ...But that's mistaken. VTA is the angle between the cantilever (measured from the cantilever's pivot to the stylus contact area) and the record surface. The ideal VTA in any given setup is a function of the cartridge's design and the cutting head that was used in making the LP. It's actually a critical setup parameter. So to describe it as "zero" under some circumstances simply isn't correct. I can see how the misunderstanding occurs, but that doesn't make it correct. |
Dear Cleeds, I think you are are confusing angular quantification of VTA with *someone's* attempt to indicate the direction of a VTA adjuster on a tone arm. This "positive" or "negative" attitude does not attempt to account for angular displacement just the general attitude of the tone arm post-adjustment. If you can offer a better "convention" that describes it by all means do so and we'll use that instead. ;) We await your deliberations with interest. Bill |
