FR-1 MK3F

About the FR-1 MK3F

The Fidelity Research FR-1 MK3F is the most advanced cartridge in the FR-1 series and the first moving-coil cartridge in the world to use pure silver wire for its coils, which lowers resistance and improves efficiency without altering the cartridge design. It features a coreless coil to prevent hysteresis distortion and a solid diamond stylus with a line contact tip to increase groove contact area and enhance high-frequency response. The cartridge is known for remarkable inner detail, a stable stereo image, and moderate coloration with a tonal balance similar to the Shure V15-IV elliptical. It has a relatively high compliance and weighs 10 grams, making it compatible with low-mass tonearms for optimal resonance. The FR-1 MK3F is praised for its low-frequency tracking ability and clean sound, though some users note a slight lack of low-end impact. It remains a highly sought-after vintage cartridge for audiophiles.