Ortofon SPU Mono GM MkII
Best premium cartridge for dedicated vintage mono record collectors.
This specialized moving coil cartridge is purpose-built for the authentic playback of early 25µm mono vinyl records. Its high-output design removes the need for additional transformers, offering a streamlined and accurate solution for vintage audio enthusiasts.
$1237.99
at
The Cable Company
More SPU options
Who it's for
- Vinyl collectors seeking the most faithful playback of mono pressings
- Audiophiles who prioritize emotional engagement and tonal richness
- Serious listeners using vintage-style high-mass tonearms
Who should skip it
- Archivists concerned about long-term preservation of fragile record grooves
- Owners of lightweight modern turntables without universal headshell mounts
- Detail-oriented listeners who prefer clinical precision over vintage warmth
Performance breakdown
Mono Fidelity
Unrivaled accuracy for vintage 25µm mono pressings and historical recordings.
Signal Chain Simplicity
High-output design removes the need for complex external step-up transformers.
Resonance Control
The wood-resin composite body effectively dampens unwanted vibrations during playback.
Tracking Stability
Robust tracking force ensures consistent contact with older, worn vinyl grooves.
Setup Complexity
Heavier mass requires careful tonearm matching and precise counterweight calibration.
Stylus Precision
Spherical profile is perfectly optimized for early mono groove geometry.
Key Specs
Output Voltage
3 mV
Frequency Response
20 Hz - 20 kHz
Stylus Type
Spherical
Stylus Tip Radius
25 μm
Tracking Force Range
3.0-5.0 g
Internal Impedance
100 ohm
Recommended Load Impedance
47 Kohm
Cartridge Body Material
Ground wood and resin composite
Weight
28 g
Cartridge Type
Moving Coil
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