AUDIO ORIGAMI BLOG
The Importance of Anti-Skate
A quick guide to one of the most overlooked steps of tonearm setup.
Anti-skate is one of the most misunderstood adjustments on a turntable. Many listeners treat it as optional because records will still play even when it is set incorrectly. Unfortunately, that is exactly why it matters so much. Problems caused by incorrect anti-skate often happen slowly and subtly while sound quality, tracking performance and record life are quietly reduced.
When properly adjusted, anti-skate is just as important as vertical tracking force (VTF, the downward pressure applied by the stylus to the record), cartridge alignment, or vertical tracking angle (VTA, the angle at which the stylus sits vertically in the groove).
What anti-skate actually does…
As a record spins, friction between the stylus (needle) and the groove creates a natural pulling force that drags the tonearm toward the centre of the record. This inward pull is called skating force. Anti-skate applies a small outward counter-force to balance this effect. The goal is simply to keep pressure equal on both sides of the record groove. Each groove contains two walls: one carries the left audio channel the other carries the right audio channel. If anti-skate is incorrect, one groove wall carries more pressure than the other. So while Vertical Tracking Force (VTF) controls how hard the stylus presses downward, Anti-skate controls how evenly that force is shared side-to-side. You can therefore have perfectly correct tracking force but still track poorly if anti-skate is wrong.
Why anti-skate is as important as VTA and tracking force…
It directly affects tracking ability.
Tracking describes how accurately the stylus follows groove modulations, meaning the tiny movements containing music. Too little or too much anti-skate overloads one groove wall, reducing the cartridge’s ability to follow complex musical information such as vocals, cymbals, loud passages and inner grooves near the record label.
It causes channel-specific distortion.
Incorrect anti-skate rarely sounds like general distortion, instead, it usually appears in one channel first. You may hear sibilance, meaning “S” sounds, breaking up more on one side, one speaker sounding harsher, imbalance during loud passages, the stereo image drifting away from centre.
It affects stylus and record wear.
Unequal pressure means one side of the stylus wears faster, one groove wall wears faster, long-term record damage increases.
Anti-skate errors are often more audible than VTA errors Vertical Tracking Angle (VTA) adjustments can produce subtle tonal differences. Incorrect anti-skate, however, often produces clearly audible mistracking, splashy treble, unstable imaging or aggressive sibilance.
Why anti-skate matters on any tonearm length…
A common myth is that longer tonearms need little or no anti-skate.
In reality, skating force exists whenever three things are present:
- Stylus friction
- Offset cartridge geometry
- A spinning record groove
All pivoted tonearms meet these conditions. Regardless of arm length, groove-wall pressure balance still matters, therefore anti-skate still matters.
What difference correct anti-skate makes to sound…
Too little anti-skate (arm pulled inward): distortion stronger in one channel, often the right aggressive or spitty vocals inner grooves sounding strained soundstage pulling slightly sideways rough or grainy treble.
Too much anti-skate (arm pushed outward): opposite channel distortion bright or edgy treble cymbals becoming overly sharp reduced smoothness unstable imaging.
Correct anti-skate: vocals lock firmly into the centre cleaner sibilants smoother treble less listening fatigue improved inner-groove tracking music sounds more relaxed and effortless.
Why grooveless surfaces do not work…
Some setup guides suggest using a blank or grooveless record surface and adjusting anti-skate until the arm does not move inward or outward. This seems logical, but it is physically incorrect.
On a smooth surface:
- there are no groove walls
- stylus contact geometry changes
- friction behaviour is completely different
- real musical modulation is absent
Anti-skate exists specifically to balance forces between groove walls. A blank surface removes the very condition you are trying to optimise.
Setting anti-skate by ear…
- Set correct Vertical Tracking Force (VTF), alignment and reasonable Vertical Tracking Angle (VTA) first.
- Choose recordings with centred vocals, clear sibilance, cymbals and louder passages.
- Listen for unequal behaviour between channels.
- Make very small adjustments and replay the same musical passage.
- If breakup is stronger in the right channel, slightly increase anti-skate. If breakup is stronger in the left channel, slightly reduce anti-skate.
- Confirm using inner grooves near the end of a record side.
- Check centre image stability using centred vocals or mono content.
- Accept real-world compromise, as skating force changes continuously across a record.
Final thoughts…
Anti-skate directly controls how evenly the stylus contacts the groove walls, influencing distortion, stereo imaging, treble smoothness, tracking ability, stylus wear and record longevity.
When anti-skate is right, music becomes calmer, cleaner and more natural. The stylus simply follows the music as intended. It takes a few goes and a little time, but it’s really worth it!