How to Set Up a Cartridge

Fitting a cartridge is the one job in vinyl that genuinely rewards care. A micro-linear stylus mounted a few degrees off sits in the groove at the wrong angle, which loses exactly the detail you paid for and wears both stylus and record unevenly. The same cartridge aligned properly does everything it was designed to do.

It takes about half an hour the first time and ten minutes after that. You need one thing you may not have: an alignment protractor. Many turntables ship with one; printable versions are widely available and work fine provided you print at 100 percent scale with page scaling switched off.

Before you start

• Unplug the turntable and leave the stylus guard on until the alignment step.
• Work on a level surface with good light. A phone torch angled across the protractor helps enormously when reading the null points.
• Find the specification.You need the cartridge’s recommended tracking force before you start, not halfway through.
• Have a small screwdriver that fits the headshell screws. Cartridge screws are easy to round off with the wrong tool.

Step 1 — Wire and mount the cartridge

Four thin lead wires connect the tonearm to the cartridge pins, and the colors are standardized: white to left positive, blue to left negative, red to right positive, green to right negative. The clips are delicate; grip the metal collar with tweezers or fine pliers, never pull on the wire.

Then fit the cartridge into the headshell with its two screws. Leave them justloose enough that the cartridge can still slide forward and backward in the slots — you are about to move it. Cartridges with threaded bodies, like the Audio-Technica VM95 range, make this considerably easier because there are no nuts to hold in place.

Step 2 — Overhang and alignment

This is the step that matters most. A pivoted tonearm swings in an arc while a record groove is a spiral, so the stylus can only be exactly tangent to the groove at two points on the record. Those are the null points, and alignment means positioning the cartridge so the stylus hits both.

1. Place the protractor over the spindle so it sits flat.
2. Lower the stylus gently onto the outer null point.
3. Slide the cartridge forward or back in the headshell until the stylus tip sits exactly on the point, and the cartridge body sits square with the grid lines printed around it.
4. Repeat at the inner null point. It will usually be slightly off; adjust, then go back and check the outer point again.
5. Iterate until both are right, then tighten the screws evenly — alternate between them so the cartridge does not twist as you go.

Re-check alignment after tightening. Cartridges love to rotate a fraction of a degree on the final turn of the screw.

Step 3 — Azimuth

Crouch down and look at the cartridge head-on from the front of the deck. The body should be vertical, not leaning left or right. A tilted cartridge puts uneven pressure on the two groove walls, which shows up as poor channel balance and vague stereo imaging.

Most tonearms in this price range have no azimuth adjustment, so if it is visibly tilted the fix is to loosen the screws and reseat the cartridge squarely in the headshell. Small deviations are not worth chasing.

Step 4 — Balance the arm and set tracking force

Set anti-skate to zero first, or it will fight you.

1. With the stylus guard on, lift the arm off its rest and hold it over the platter.
2. Turn the counterweight until the arm floats level— neither sinking to the platter nor rising to the rest. Take your time; this is the reference point everything else depends on.
3. Return the arm to its rest. Now hold the counterweight still and rotate only the numbered dial to zero. You are calibrating the scale, not moving the weight.
4. Finally, turn the whole counterweight until the dial reads the tracking force your cartridge specifies.

Do not improvise a value. Too little force is not the safe option: a stylus that skitters in the groove distorts on loud passages and can damage groove walls more than a slightly heavy setting will. Use the number the manufacturer publishes.

Step 5 — Anti-skate

As a record plays, friction drags the arm inward toward the spindle. Uncorrected, that presses the stylus harder against the inner groove wall than the outer — uneven wear on your records, and one channel distorting before the other.

Set the anti-skate dial to roughly the same number as the tracking force. That is the manufacturer-intended starting point and it is close enough for essentially every domestic setup. Five seconds, and it is the setting most often left at zero by people who did not know it existed.

Check your work

Play something familiar and listen for three things:

• Sibilance.If “s” sounds spit or splash, particularly toward the middle of a side, alignment or tracking force is off.
• Channel balance. With a mono or centered vocal, the image should sit dead center. A pull to one side suggests azimuth or a lead wire.
• Inner-groove distortion. If the last track on a side is noticeably rougher than the first, re-check alignment at the inner null point.

If something is wrong and you cannot tell which setting caused it, the troubleshooting guideworks backward from the symptom. And if you are only changing the stylus rather than the whole cartridge, none of this applies — see how to replace a turntable stylus, which is a two-minute job.