A Briefing on Ortofon's SPU Cartridges
Ortofon’s SPU cartridges continue the tradition of the first ever Moving Coil cartridges as originally engineered by Mr. Robert Gudmandsen and produced by Ortofon in the late 1950s. Praised for their refined linearity and full body, these cartridges have remained a favorite throughout the years, both for modern and vintage high-end applications. The latest incarnation of SPU cartridges feature a wood-based integrated headshell to further reduce resonance and provide an authentic and attractive aesthetic.

Ortofon SPU Meister Silver GM MKII Technical Data

Output voltage at 1000 Hz, 5cm/sec.: 300 µV

Channel balance at 1 kHz: < 1 dB

Channel separation at 1 kHz: > 20 dB

Channel separation at 15 kHz: > 10 dB

Frequency range: 20-25.000 Hz

Frequency response: 20-20.000 Hz + 2 / - 1 dB

FIM distortion at recommended tracking force, DIN 45.542: < 1%

Tracking ability at 315Hz at recommended tracking force: > 70 µm

Compliance, dynamic, lateral: 8 µm/mN

Stylus type: Nude elliptical

Stylus tip radius: r/R 8/18 µm

Equivalent stylus tip mass: 0,45 mg

Tracking force range: 3,0-5,0 g (30-50 mN)

Tracking force, recommended: 4,0 g (40 mN)

Tracking angle: 20°

Internal impedance, DC resistance: 1.5 Ohm

Recommended load impedance: > 10 Ohm

Cartridge body material: Aluminium

Cartridge color: Silver/Black

Cartridge weight: 28,5 g


Ortofon SPU Brochure PDF


User Manual Ortofon SPU Meister Silver GM MKII