Cartridge alignment is an important part of setting up a turntable, but not every record player needs manual adjustment.
Many turntables arrive with a factory-installed cartridge that is already aligned. You generally only need to check alignment after installing a new cartridge, changing its position in the headshell, or investigating possible setup problems.
The process involves using a cartridge alignment protractor to position the stylus correctly at specific points on the record. With patience, good lighting and the right tool, you can do this at home without specialized equipment.
This guide explains what cartridge alignment does, what tools you need, and how to adjust your cartridge using a two-point alignment protractor.
Signs Your Turntable Cartridge May Need Alignment
Incorrect cartridge alignment can contribute to tracking distortion and uneven playback, particularly toward the inner grooves of a record.
However, these symptoms do not automatically mean alignment is the problem. A worn stylus, incorrect tracking force, damaged record or other setup issue can produce similar symptoms.
Look for the following signs:
1. Distortion Toward the End of a Record
If the final tracks on a record sound noticeably harsher or more distorted than the opening tracks, cartridge alignment is one possible cause.
As the stylus moves toward the center of the record, the groove geometry changes and tracking-angle errors can become more noticeable.
This is sometimes called inner-groove distortion.
Before adjusting the cartridge, check the stylus condition, tracking force and record cleanliness as well.
2. Uneven Left and Right Channel Playback
If a centered vocal or instrument sounds noticeably stronger in one channel, cartridge alignment may be worth checking.
However, channel imbalance can also result from cartridge wiring, damaged cables, phono preamp problems or a faulty cartridge.
3. A Recently Installed Cartridge
The most straightforward reason to align a cartridge is that you have installed a new one.
Even if the cartridge fits into the headshell, its position and angle may not be correct for your tonearm.
A cartridge alignment protractor helps establish the correct position.
Do Factory-Installed Cartridges Need Alignment?
Usually not.
Many turntables arrive with their cartridges installed and aligned by the manufacturer. If the cartridge has not been moved or replaced, there is generally no reason to adjust it.
Some beginner turntables also use integrated cartridge arrangements or fixed headshell designs that do not provide conventional cartridge alignment adjustments.
Check your turntable’s manual before attempting to move anything.
What You Need to Align a Turntable Cartridge
You only need a few basic tools for a conventional two-point alignment procedure.
| Tool | Purpose |
|---|---|
| Cartridge alignment protractor | Provides the reference points and alignment grids |
| Small screwdriver | Loosens and tightens cartridge mounting screws |
| Good lighting | Helps you see the stylus and alignment lines |
| Magnifying glass or loupe | Makes small alignment adjustments easier |
| Digital tracking-force gauge | Checks tracking force after alignment |
The most important item is the alignment protractor.
Some turntables include a suitable protractor, while others require you to purchase or print one.
Choosing the Correct Protractor
Not all alignment protractors use the same geometry.
Common alignment systems include:
- Baerwald (Löfgren A): A widely used geometry designed to distribute tracking error across the record.
- Löfgren B: An alternative geometry with a different distribution of tracking error.
- Stevenson: A geometry that places particular emphasis on minimizing tracking error closer to the inner grooves.
The correct choice depends on your tonearm geometry and the alignment method recommended for your turntable.
If your manufacturer supplies a specific protractor, use that rather than choosing a random printable template.
If you print a protractor, make sure the printer is set to 100% scale. Do not use options such as Fit to Page, which can change the template’s dimensions.
How to Align a Turntable Cartridge Step by Step
The following instructions describe a conventional two-point protractor procedure for a turntable with an adjustable cartridge mounted in a slotted headshell.
Step 1: Prepare the Turntable
Before starting:
- Switch off the turntable.
- Remove the record from the platter.
- Make sure the turntable is level.
- Install the platter and mat.
- Unlock the tonearm and check that it moves freely.
- Make sure the cartridge mounting screws are accessible.
The cartridge should already be attached to the headshell, but its mounting screws must be loose enough to allow small adjustments.
If you have just installed the cartridge, make sure its tracking force is close to the manufacturer’s recommended value before proceeding. This helps protect the stylus during the alignment process.
Step 2: Position the Alignment Protractor
Place the protractor on the platter, positioning its center hole over the turntable spindle.
Make sure it sits flat and does not move.
If you are using a thin printed paper protractor, some designs require a record underneath to bring the template to approximately record height. Follow the instructions supplied with your particular protractor.
Check that the protractor is intended for your turntable’s alignment geometry.
Step 3: Loosen the Cartridge Mounting Screws
Using the appropriate screwdriver, loosen the two cartridge mounting screws slightly.
You want the cartridge to move forward, backward and rotate slightly within the headshell slots.
Do not remove the screws completely.
The cartridge should remain supported and should not move freely when you release it.
Handle the cartridge carefully. Avoid touching the stylus or cantilever.
Step 4: Align the First Reference Point
Move the tonearm so that the stylus rests on the first alignment point printed on the protractor.
Look closely at the alignment grid.
The goal is to position the stylus accurately over the marked point while ensuring that the cantilever is parallel to the reference lines.
The cantilever is the small component connecting the cartridge body to the stylus tip.
Important: Align the cantilever rather than automatically using the cartridge body’s edges. Some cartridge bodies are not perfectly parallel to their cantilevers.
Make small adjustments by moving the cartridge forward or backward and rotating it slightly.
Step 5: Check the Second Reference Point
Lift the tonearm and move the stylus to the second alignment point.
Again, check whether the stylus sits on the marked point and whether the cantilever is parallel to the reference grid.
You may find that the cartridge aligns correctly at the first point but not at the second.
This is normal during the adjustment process.
Move the cartridge slightly and repeat the check at both points.
Step 6: Fine-Tune Both Alignment Points
Continue adjusting the cartridge until it aligns correctly at both reference points.
The process usually involves several small adjustments:
- Check the first alignment point.
- Adjust cartridge position or angle if necessary.
- Check the second alignment point.
- Make another small adjustment.
- Repeat until both points align.
The goal is not simply to make the cartridge look straight. The stylus needs to follow the alignment geometry specified by the protractor.
Take your time. Small adjustments can make a meaningful difference.
Step 7: Tighten the Mounting Screws
Once both alignment points are correct, carefully tighten the cartridge mounting screws.
Hold the cartridge in position while tightening so it does not shift.
Do not overtighten the screws. Excessive force can damage the cartridge or headshell.
After tightening, check both alignment points again. The cartridge can move slightly while the screws are being secured.
Double-Checking Your Cartridge Alignment
Once the cartridge is aligned, check the rest of the setup before playing a record.
Recheck Tracking Force
Moving the cartridge can affect its position and setup.
Check the tracking force using the manufacturer’s recommended value. A digital tracking-force gauge can provide a useful verification.
Check Anti-Skate
Confirm that anti-skate is still set according to your turntable and cartridge manufacturer’s recommendations.
Cartridge alignment does not replace anti-skate adjustment.
Inspect the Cartridge from the Front
Look at the cartridge from the front while it is positioned over the platter.
The cartridge should sit upright rather than leaning noticeably to one side.
This is a separate alignment consideration called azimuth. Not every turntable provides an azimuth adjustment, so do not attempt to force the cartridge or tonearm into a different position.
Test a Familiar Record
Play a record you know well.
Pay attention to:
- Distortion toward the inner grooves.
- Unusual channel imbalance.
- Skipping or unstable tracking.
- Changes in playback compared with the previous setup.
If the original problem remains, check other possible causes rather than repeatedly moving the cartridge without a clear reason.
Common Cartridge Alignment Mistakes
Aligning the Cartridge Body Instead of the Cantilever
The cartridge body is not always perfectly aligned with the stylus assembly.
Whenever the cantilever is visible, use it as the primary reference against the protractor’s grid lines.
Using the Wrong Protractor
A protractor designed for a different tonearm geometry may produce an unsuitable alignment.
Use the manufacturer’s recommended template whenever possible.
Printing a Protractor at the Wrong Scale
A printable protractor must be printed at its intended size.
Check the template’s scale reference after printing and use 100% print size.
Tightening the Screws Too Much
Excessive force can damage the cartridge or headshell and may cause the cartridge to shift.
Tighten securely but gently.
Forgetting to Recheck Tracking Force
After moving the cartridge, check the tracking force again.
Use the recommended setting for your exact cartridge and stylus rather than a generic value.
Frequently Asked Questions
Do I need to align my cartridge every time I play a record?
No. Cartridge alignment is normally a setup procedure performed when installing a cartridge.
You generally only need to repeat it if the cartridge is removed, repositioned, replaced or visibly shifted.
Can misalignment damage my records?
Incorrect alignment can increase tracking error and contribute to distortion and uneven groove wear over time.
The actual risk depends on the degree of misalignment, cartridge condition, tracking force and playback conditions.
Correct alignment is part of maintaining a properly configured turntable.
Is cartridge alignment difficult for beginners?
It requires patience and careful adjustments, but the basic process is manageable.
A suitable protractor, good lighting and a small screwdriver are usually enough. The most time-consuming part is checking both alignment points and making small corrections.
What is the difference between overhang and offset angle?
Overhang is the distance between the stylus tip and the spindle when the tonearm is positioned over the spindle’s center.
Offset angle is the angle between the cartridge’s longitudinal axis and the tonearm’s effective axis.
Both affect how the stylus tracks the record grooves. A two-point protractor helps establish the correct combination for the selected alignment geometry.
Can I align a cartridge without a protractor?
You can use manufacturer-specified overhang measurements or a dedicated alignment gauge designed for your turntable.
However, a suitable protractor provides a more direct way to check both overhang and offset angle.
For most beginners, using the correct protractor is the simplest approach.
Do I need to align a cartridge when replacing only the stylus?
Usually not, provided you are replacing the stylus with a compatible replacement and have not moved the cartridge body.
After installing the replacement, check that it is fully seated and verify tracking force according to the manufacturer’s instructions.
Can every turntable cartridge be adjusted?
No. Some turntables have fixed or integrated cartridge arrangements that do not allow conventional cartridge positioning.
Others have removable headshells or slotted mounting points that make adjustment possible.
Check your turntable’s design before attempting alignment.
Final Thoughts: Take Your Time with Cartridge Alignment
Correct cartridge alignment helps the stylus follow record grooves as intended and reduces unnecessary tracking error.
If your turntable arrived with a factory-installed cartridge, you probably do not need to make any adjustments.
If you have installed a new cartridge, use a compatible alignment protractor, check both reference points and make small adjustments until the cantilever is correctly positioned.
Once the screws are secured, recheck tracking force and anti-skate before playing your records.
A careful alignment is a worthwhile part of turntable setup and can help your cartridge perform as intended.