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Black plastic turntable cartridge with dual ruby sapphire stylus needle visible

Ruth's sister

Ruth's sister 4NB402140 internal power cable

SKU CH-Q7FE-XXJ7G

A dual ruby and sapphire stylus cartridge delivers 200-300mV output with 40±10MN needle pressure for accurate groove tracing and reduced record wear

  • Precise groove tracking with dual ruby and sapphire stylus
  • Extended frequency response from matched left and right channels
  • Reduced record wear thanks to multilevel stylus shape
  • Efficient signal generation via paratoroidal coils
  • 200-300mV output voltage for compatible phono stages

Cartridge Model 4NB402140

The 4NB402140 is a magnetic phonograph pickup designed for turntable tonearms. Its paratoroidal coils improve generating efficiency to deliver 200-300mV output. The dual ruby and sapphire stylus traces grooves with high accuracy for nuanced audio reproduction.

Stereo listeners with standard tonearms

This cartridge suits listeners who want extended frequency response and outstanding channel separation from a moving-magnet design. The stylus shape reduces record wear during playback. Buyers who need a moving-coil cartridge or a different mounting format should look elsewhere.

Output voltage 200-300mV

The 200-300mV output level determines compatibility with standard phono preamplifiers and receiver inputs. The tracking force is specified at 40±10mN. Verify that your tonearm and preamp match these electrical and mechanical requirements before purchasing.

Highlights

  • Precise groove tracking with dual ruby and sapphire stylus
  • Extended frequency response from matched left and right channels
  • Reduced record wear thanks to multilevel stylus shape
  • Efficient signal generation via paratoroidal coils
  • 200-300mV output voltage for compatible phono stages

Specifications

No published specifications for this item yet.

Questions about this item

How much heat or noise does the 4NB402140 stylus produce during long listening sessions?

The stylus is a passive mechanical component with no electronics, so it generates no heat and makes no audible noise of its own during extended play.

What turntable setup must I already own for the 4NB402140 cartridge to work?

You need a turntable with a standard headshell mount that accepts magnetic moving-magnet cartridges and a tonearm adjustable to a 40±10 mN tracking force.

Will the 4NB402140 stylus damage older vinyl records I want to keep?

Its multilevel ruby and sapphire tip is designed to reduce record wear compared with conical or elliptical styli, helping preserve older LPs during playback.

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