Mobile Fidelity UltraTracker Cartridge


Drawing on 40 years of making records at Mobile Fidelity Sound Lab, the new MoFi Electronics division is focused on improving the sonic integrity of audio reproduction in the home. Our products are the result of multiple collaborations with some of the world’s best audio designers, stemming from decades of experience in the studio.
We designed three new high-output, moving-magnet phono cartridges in collaboration with Allen Perkins of Spiral Groove. MoFi cartridges use a V-Twin dual-magnet generator that mirrors the design of a lathe’s stereo cutter head. Two powerful low-mass magnets are accurately aligned in parallel with the stereo record grooves to achieve excellent channel separation and detail retrieval true to the Original Master Recording



UltraTracker Highlights

UltraTracker extracts immense amounts of detail, dynamics, tone, and texture from LPs. Literally made to live in records’ grooves, the configuration gives this cartridge innate advantages few others can claim at this price.

MoFi cartridges are designed by looking at where a record starts: On a cutting lathe like the model used at Mobile Fidelity Sound Lab. UltraTracker features a V-Twin dual-magnet generator that mirrors the layout of the cutting head that originally makes a record’s grooves. Employing two low-mass, powerful magnets aligned in a V formation parallel with the record grooves, this cartridge features excellent tracking ability.

  • V-Twin dual-magnet generator
  • Nude Elliptical stylus
  • Well-damped billet aluminum body
  • 3.5mV output


The well-damped billet aluminum body controls resonances for tight, accurate bass reproduction. UltraTracker delivers finely tuned wide-bandwidth audio, with extension at both frequency extremes and no smearing of detail.


By using a nude-elliptical diamond stylus, UltraTracker easily tracks complex dynamic passages. You’ll hear superb detail and experience musical emotionalism that will send shivers down your spine.


  • Type: Dual Magnet Stereo
  • Frequency Response: 20 to 25,000 Hz
  • Recommended Load Impedance: 47,000
  • Capacitance: 100pF
  • Output Voltage: 3.5 mV
  • Tracking Force: 1.8 – 2.2grams
  • Stylus Construction: Nude eliptical
  • Weight: 9.7 g

To see more of the MoFi range heat over to UltraDeck

Have a Question?

If you have any questions about this product, please don't hesitate to get in touch with us via:
  • Our address: 1/81 Guthrie St Osborne Park Western Australia 6017
  • Our phone: 08 9445 2783
  • Our email: pierre [@] OR jim [@]
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