SPU #1 S

The SPU #1 E is a remarkable embodiment of the classic Moving Coil technology, offering an ideal solution for playing back a wide range of stereo recordings, from the early classics to modern and contemporary pieces, with an outstanding price-to-performance ratio.

The SPU #1 S features a Spherical stylus.


Perfect all-rounders for the newcomers to the world of SPU


Crafted with precision, the housing of the SPU #1 cartridges is constructed from a combination of grinded wood and resin composite and features High Purity Copper armature windings and terminal leads, ensuring pristine signal transmission.

The SPU #1 E model takes sound reproduction to the next level with its elliptical stylus profile, providing a more detailed sound reproduction and expansive imaging.

Perfect solution for stereo recordings


With their universal connector, the SPU #1 models ensure the ability to mount the units in a wider range of tonearms with universal (SME) mount, e.g., the Ortofon Reference tonearms. The combination of SPU #1, the ST-7 Moving Coil transformer and Ortofon Reference tonearms gives a supreme experience. Sonically, the SPU #1 models are genuine SPUs, known for their full-bodied and powerful music image, minimum of intermodulation distortion, and an impressive channel separation, a perfect solution for the playback of stereo recordings.

September 2016

… To this day, Ortofon SPU cartridges enjoy cult followings in Japan and elsewhere.
… There are many variants of the basic, iconic SPU design, but most are highmass, low-output, heavy trackers known for their old-school warmth and musicality ...

Michael Fremer



  • Channel balance at 1 kHz
    1.5 dB
  • Output voltage at 1 kHz, 5cm/sec
    0.18 mV
  • Channel seperation at 1 kHz
    20 dB
  • Channel seperation at 15 kHz
    10 dB
  • Frequency response 20 Hz - 20 kHz
    3 dB
  • Tracking ability at 315Hz at recommended tracking force
    60 µm
  • Compliance, dynamic, lateral
    10 µm/mN
  • Stylus type
  • Stylus tip radius
    R 18 µm
  • Tracking force range
    3.0-5.0 g (30-50 mN)
  • Tracking force, recommended
    4.0 g (40 mN)
  • Tracking angle
  • Internal impedance, DC resistance
    2 ohm
  • Recommended load impedance
    10 ohm
  • Coil wire material
    High Purity Copper (OFC)
  • Cartridge body material
    Ground wood and resin composite
  • Cartridge colour
    Black matte
  • Cartridge weight
    28 g

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