Antiskate is used to counteract skating force which varies across the record surface from outside to inside in nonlinear fashion. Skating force is a function of groove friction, stylus shape, tracking error (impacted by alignment choice), record speed and many other factors. A proper approximate anti skate setting would allow one to achieve the lowest distortion in both channels across the record. In some tonearms, proper anti-skate works in conjunction with proper azimuth to minimize crosstalk.
I don't think there is a hard and fast rule of setting antiskate as a fixed fraction of VTF.
Use your ears. Proper anti skate allow for least distortion in both channels. Many things to listen for. Simplest is mistracking in vocals. In an orchestral recording, the violin section on the left and the mass strings on the right should play with equal alacrity. Too little anti skate and the violin section lose its luster. You can also listen for soundstage stability during dynamic passages. In low distortion playback, the acoustic space where the recording is made should be fairly apparent. Improper anti skate would produce tracking distortion which mask the subtle acoustic clues. too much anti skate and the soundstage to the right would collapse upon demanding passages.
Many leave anti skate setting as the last adjustment. I feel that it is worthwhile to re-optimize VTF,azimuth, VTA/SRA after dialing in anti skate. Frequently you can lower the VTF very slightly after proper anti skate is done. By lowering VTF, you may need a different VTA setting to achieve the same SRA.
There is a group of people on audiogon and even dealers who feel adamantly that no anti skate is best. They would congratulate you if you arrive at the same conclusion.
" Your setup must be right when you don't need anti skate"
or
" You need anti skate ? That's just a bandaid. Your setup must be off"
I don't doubt that their system sounds best without anti skate. I think of the following possibilities.
1. The anti skate mechanics of the tonearm is compromised. Using anti skate cause other distortions.
2. Some tonearms may have inherent antiskating force. This may be unintentional or intentional (e.g.. force of tonearm cable )
3. Certain cartridges require very little anti skate. The zyx I have tried require less anti skate than lyras.
4. Antiskate setting done as an after thought without re-optimizing other parameters. If you spent hours setting up striving for the best sound with zero anti skate. I trust you have done just that. Adding any anti skate will throw a wrench in there.
4. Poor alignment
I am no authority on the subject but this is a well discussed topic. Many knowledgeable people including Jonathon Carr and Frank Schroeder have contributed. I suggest you do a search for their take on the subject. Skating force is not a tooth fairy. Skating force is significant and produce significant distortion.
I was in the no anti skate camp until an experienced person in my listening group taught me what to listen for.
Regardless of their opinions on anti skate, I congratulate anyone who find happiness in their vinyl setup.
I don't think there is a hard and fast rule of setting antiskate as a fixed fraction of VTF.
Use your ears. Proper anti skate allow for least distortion in both channels. Many things to listen for. Simplest is mistracking in vocals. In an orchestral recording, the violin section on the left and the mass strings on the right should play with equal alacrity. Too little anti skate and the violin section lose its luster. You can also listen for soundstage stability during dynamic passages. In low distortion playback, the acoustic space where the recording is made should be fairly apparent. Improper anti skate would produce tracking distortion which mask the subtle acoustic clues. too much anti skate and the soundstage to the right would collapse upon demanding passages.
Many leave anti skate setting as the last adjustment. I feel that it is worthwhile to re-optimize VTF,azimuth, VTA/SRA after dialing in anti skate. Frequently you can lower the VTF very slightly after proper anti skate is done. By lowering VTF, you may need a different VTA setting to achieve the same SRA.
There is a group of people on audiogon and even dealers who feel adamantly that no anti skate is best. They would congratulate you if you arrive at the same conclusion.
" Your setup must be right when you don't need anti skate"
or
" You need anti skate ? That's just a bandaid. Your setup must be off"
I don't doubt that their system sounds best without anti skate. I think of the following possibilities.
1. The anti skate mechanics of the tonearm is compromised. Using anti skate cause other distortions.
2. Some tonearms may have inherent antiskating force. This may be unintentional or intentional (e.g.. force of tonearm cable )
3. Certain cartridges require very little anti skate. The zyx I have tried require less anti skate than lyras.
4. Antiskate setting done as an after thought without re-optimizing other parameters. If you spent hours setting up striving for the best sound with zero anti skate. I trust you have done just that. Adding any anti skate will throw a wrench in there.
4. Poor alignment
I am no authority on the subject but this is a well discussed topic. Many knowledgeable people including Jonathon Carr and Frank Schroeder have contributed. I suggest you do a search for their take on the subject. Skating force is not a tooth fairy. Skating force is significant and produce significant distortion.
I was in the no anti skate camp until an experienced person in my listening group taught me what to listen for.
Regardless of their opinions on anti skate, I congratulate anyone who find happiness in their vinyl setup.