Turntables and cartridges
A practical guide to drive systems, cartridge types, phono gain, step-up transformers and the setup choices that help a turntable perform as intended.
The starting point
A record groove contains a physical trace of the music. The stylus follows that groove, the cartridge turns its movement into a very small electrical signal, and the phono stage prepares that signal for the rest of the system.
Spinning the record
Both approaches can deliver excellent speed stability and low noise. The implementation matters more than the label, so the better choice depends on how the turntable will be used and designed.
A belt transfers rotation from the motor to the platter or sub-platter. Separating the motor from the platter can help manage vibration, while the belt, pulley and power supply all influence speed accuracy.
The platter is driven directly by the motor. Good designs offer fast start-up, strong speed stability and long-term reliability without a drive belt.
Neither system is automatically more musical. A well-engineered belt-drive turntable can outperform an ordinary direct-drive model, and the reverse is equally possible.
The parts working together
Hover or tap a number to learn about each part.
Reading the groove
All three designs use the stylus and cantilever to turn groove movement into an electrical signal. What moves inside the generator affects output level, moving mass, serviceability and the phono stage the cartridge requires.
Each drawing shows a cartridge with its casing opened up. Follow the stylus from the record, along the cantilever, to the highlighted part inside. Brown identifies what moves; grey parts stay still. These are simplified teaching diagrams, not exact internal layouts.
A small magnet moves near fixed coils. Output is comparatively high, compatibility is broad, and many models have a user-replaceable stylus.
Good forAccessible ownership, easy stylus replacement and straightforward matching.A light iron element modulates a fixed magnetic field. Electrically, many MI cartridges behave much like MM models and normally use an MM phono input.
Good forLow moving mass with MM-like output and phono-stage compatibility.Tiny coils move within a fixed magnetic field. Low-output models place greater demands on phono gain and noise performance; stylus replacement is usually a specialist service.
Good forListeners prepared to match cartridge, tonearm and phono stage more carefully.AT THE GROOVE
The stylus shape determines how the diamond meets the groove. The cantilever is the tiny arm that carries that movement into the cartridge. Both matter, but neither specification predicts the result on its own.
The tip touches the two groove walls, not the bottom. A narrower contact from front to back can trace finer groove changes; line-contact profiles also spread contact over more of the wall vertically. The contact patches below are enlarged teaching diagrams, not exact tip shapes or dimensions.
A rounded tip with a relatively small contact patch on each groove wall. It is generally less sensitive to some alignment errors, but its broader tracing radius can limit how precisely it follows fine groove changes.
Simple and forgivingA smaller front-to-back radius helps it follow finer groove changes than a typical conical tip. Correct alignment and tracking force still matter.
A familiar middle groundA line-contact profile with a tall, narrow contact area on each groove wall. It can trace fine detail, but careful alignment is important.
Broad vertical contactA finely shaped ridge provides a narrow tracing radius and a tall contact area. Accurate setup helps it follow demanding inner grooves with less tracing distortion.
Fine contact, precise setupCommon, light and easy to form into a small tube. Good aluminum cantilevers appear across a wide range of cartridge prices.
Very stiff and light, usually used as a solid rod. It is costly to manufacture and is common in higher-performance designs.
Rigid crystalline materials formed into small rods. Their stiffness can be useful, but the complete cartridge design remains more important than the material name.
Exceptionally stiff and rare as a cantilever material. It is difficult and expensive to make, so it appears only in specialized designs.
Making a tiny signal usable
A step-up transformer is not an alternative cartridge type. It is one way to raise the voltage from a low-output moving-coil cartridge before the signal reaches an MM phono stage.
Active route
An active MC input or head amplifier uses powered electronics to provide the additional gain. Many designs offer adjustable gain and loading, making them easier to adapt to different cartridges.
Transformer route
A passive transformer increases voltage according to its turns ratio. It adds no powered electronic gain at this first step, but the ratio also changes the load seen by the cartridge.
Getting the fundamentals right
A turntable is a vibration-measuring device. Correct geometry and a stable support are not finishing touches—they are part of how the turntable works.
Use a rigid, level surface that does not rock or flex. Keep the turntable away from strong vibration and sources of magnetic hum.
Use the cartridge manufacturer’s specified range. Too little force can mistrack and damage records just as surely as excessive force.
Measure the downward force with a stylus gauge. Use your cartridge’s recommended setting—not a universal value.
The stylus must follow the intended geometry across the record. Use the method specified for the tonearm or turntable.
Use the correct protractor and check both marked points. Overhang is how far the stylus extends beyond the platter spindle when the arm is swung over it.
Begin with the manufacturer’s guidance, then confirm that the arm tracks cleanly and evenly.
If bass energy reaches the turntable, the system can form a feedback loop. More distance, a firmer support or a suitable wall shelf can help.
Isolation is system- and room-dependent. Soft feet are not automatically better, and added mass is not a universal cure. The support should suit the turntable’s own suspension and design.
Not every tonearm offers these adjustments. Follow its instructions, protect the stylus while making changes, and recheck tracking force afterwards.
Front view
Start with the cartridge upright rather than leaning left or right. The stylus should sit correctly against both groove walls. A level body is a starting point; precise checks may need a test record and specialist help.
Side view
Raising or lowering the arm base changes the cartridge’s angle to the record. Start with the arm approximately parallel to the record during playback, unless the manufacturer specifies otherwise. VTA means vertical tracking angle; the arrow shows the height adjustment, not the VTA itself.
Choosing with intention
01Do you want a ready-to-play turntable or a platform you can adjust and upgrade?
02Does your amplifier already include a compatible phono stage?
03Can the tonearm properly balance and accommodate the cartridge?
04Will the turntable sit on furniture, a dedicated stand or a wall shelf?
05Do you value easy stylus replacement, or are you comfortable with specialist service?
Need help matching the pieces?