ML170/OCC

About the ML170/OCC

The Audio-Technica AT-ML170/OCC is a high-performance moving-magnet (Vector Aligned) phono cartridge using Audio-Technica's MicroLine stylus profile, which closely approximates the shape of the original cutting stylus to provide very accurate groove tracing and extended high-frequency response. It employs a gold-plated boron cantilever and a VM (vector-aligned) magnet structure for low distortion and good channel separation. Key specifications include an output of 4 mV at 1 kHz, recommended tracking force of 1.25 g (adjustable over 0.95 to 1.55 g), frequency response 5 Hz to 40 kHz, channel separation 21 dB, and channel balance 0.5 dB. The recommended load is 47 kilohms with 100 to 200 pF capacitance, and the cartridge body weighs about 7 g with standard 1/2 inch mounting. The original stylus is the MicroLine ATN170ML. The AT-ML170/OCC is regarded as one of Audio-Technica's upper-tier vintage MM designs, valued by audiophiles for its extended bandwidth and precise tracing. Many units offered on the used market are cartridge body only (no stylus), with pricing varying significantly depending on whether an original or replacement stylus is included.