Mobile Fidelity
Master Tracker (MM)
Phono Cartridge

Features

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

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, UltraTracker features excellent tracking ability.

WELL-DAMPED BILLET ALUMINUM BODY

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.

NUDE-ELLIPTICAL DIAMOND STYLUS

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.

Specifications

Type
Dual Magnet (MM) Stereo

Stylus
Nude-Elliptical

Output Voltage
3.5mV

Frequency Response
20–25,000Hz

Weight
9.7g

Tracking Force
1.8–2.2g

Impedance
47kOhm

Capacitance
100pF

Compliance
Static compliance :  35 x 10e-6/dyne
Dynamic compliance :  10 x 10e-6/dyne