Stylus force digital scales

Also, if you use a dynamically balanced arm, VTF will remain constant even while playing a warped record.

lewn....speaking of azimuth.....In my experience, accurate azimuth is even more important than is exact vtf

cleeds
814 posts
09-25-2017 9:45am
Also, if you use a dynamically balanced arm, VTF will remain constant even while playing a warped record.

That statement is not true. Most dynamic balancing is applied with a spring which is designed to provide a restorative force to the arm. The actual tracking force at the stylus will be unpredictable and variable depending on the cartridge compliance, size and gradient of the warp and speed of the record. The competing forces are far more complex - it would be almost impossible to provide a constant tracking force over a record warp.  

dover.

... Most dynamic balancing is applied with a spring which is designed to provide a restorative force to the arm. The actual tracking force at the stylus will be unpredictable and variable depending on the cartridge compliance, size and gradient of the warp and speed of the record. The competing forces are far more complex - it would be almost impossible to provide a constant tracking force over a record warp.

Provided that the phono cartridge and arm are properly matched, a dynamically balanced arm will provide precise VTF within a very narrow range even over a warp. There may be some deviation, but it will be slight compared to a statically balanced arm.

@cleeds 
We'll have to agree to disagree.
I do agree that the deviation in VTF with dynamically balanced arms will be less than statically balanced arms on warps, but don't agree that VTF can be precisely maintained over a warp even with dynamic balancing, unless of course you consider +- 50% precise.