Ortofon Stylus 20 Replacement Stylus

Ortofon Stylus 20 Replacement Stylus

The Ortofon Stylus 20 is a replacement diamond stylus assembly built for the OM-series family of Ortofon cartridge bodies, fitted with a nude elliptical diamond that gives it finer groove contact than a bonded stylus tip. It fits directly onto an existing OM 20-series body, so the generator, coils and headshell wiring stay untouched while only the wearing part is renewed. This separation between cartridge body and stylus is why a stylus purchase, rather than a full cartridge purchase, is the usual route once the original tip has worn down or an owner wants to move up to a nude elliptical profile.

Is the Ortofon Stylus 20 compatible with your cartridge body?

The Ortofon Stylus 20 is compatible with a defined set of Ortofon cartridge bodies rather than acting as a universal replacement stylus, so confirming the body model is the starting point before ordering. Ortofon lists it as the correct stylus for the Super OM 20, OM 20, OMP 20, OMB 20, LM 20, Concorde 20, LM 20H, TM 20U and TM 20H cartridge bodies. Each of these bodies shares the same stylus-mounting interface within the OM 20 platform, which is why one stylus part serves several model variants built on that platform, including the Concorde-format and LM/TM headshell-integrated versions. Bodies from other Ortofon series use different stylus interfaces and won't accept the Stylus 20, so matching the model designation against this list is what confirms fit.

What stylus profile gives the Stylus 20 its tracking performance?

The Stylus 20 is fitted with a nude elliptical diamond, meaning the diamond itself forms the contact tip rather than being bonded to a separate metal shank, which reduces the moving mass the cantilever has to drive through the groove. That lower moving mass is reflected in its 70 µm tracking ability at 315 Hz and its frequency response of 20 Hz to 20 kHz, +2/-3 dB, since a lighter, more responsive tip assembly can follow smaller and faster groove modulations across that range. The diamond is ground to a tip radius of r/R 8/18 µm, an elliptical shape that increases the contact area running along the groove wall compared with a spherical tip, supporting its ability to trace high-frequency detail without the vertical tracking angle compromises a larger radius would introduce. Dynamic lateral compliance is rated at 25 µm/mN, a figure that governs how the stylus suspension responds to tonearm effective mass and is relevant when matching the cartridge to a tonearm, since a mismatch between compliance and arm mass affects how evenly the stylus tracks across the resonance range. The stylus body is finished in black.

What tracking force and angle does it require?

The Stylus 20 is specified with a tracking force range of 1.25-1.75 g (12.5-17.5 mN) and a recommended setting of 1.5 g (15 mN), so a tonearm with a downforce gauge capable of setting VTF within that band is needed to run it correctly. It's ground to a tracking angle of 20°, the angle the stylus is set to trace the groove at, which is a factor in setting tonearm height or VTA once fitted. Ortofon provides a downloadable user guide covering fitting and adjustment, which is the reference point for setting these values on a specific tonearm.

Where does the Stylus 20 sit within Ortofon's stylus range?

The Stylus 20 is one of five styli in Ortofon's replacement stylus range, alongside the Stylus 10, Stylus 30, Stylus 40 and Stylus 78. Buyers with an OM 20-series body choosing between these options are selecting by which cartridge body they already own, since each stylus in the range is built to match a particular body or platform rather than being interchangeable across the whole range. Confirming the cartridge body model, as set out above, is what determines which of these styli is correct, rather than choosing on stylus number alone.

Who should choose this replacement stylus?

This replacement stylus is the right choice for owners of a Super OM 20, OM 20, OMP 20, OMB 20, LM 20, Concorde 20, LM 20H, TM 20U or TM 20H cartridge body who need to renew a worn stylus, or who want to fit a nude elliptical tip to that body. Because the stylus assembly is the replaceable part of the cartridge, fitting it extends the working life of the existing cartridge body without requiring a new cartridge, tonearm rewiring, or cartridge alignment beyond checking tracking force and angle as set out in the user guide.