The Audio-Technica AT-OC9/III is the latest evolution of the AT-OC9 cartridge originally launched in 1987. Over the years the AT-OC series has undergone a number of model changes both inside and outside Japan, and it has continued to be a best seller for over 20 years. While drawing on the basic design of the AT-OC9ML/II which has been available exclusively in overseas markets and which has received critical acclaim all these years, the AT-OC9/III is the result of a fresh approach based on a thorough review of the stylus tip, cantilever, magnetic circuit parts, damper and other aspects designed to track and reproduce the highest sound quality. With the new AT-OC9/III cartridge you will experience musical opulence and expressiveness of sound layered on depths of silence.
 
Features:

- Special Line Contact stylus with solid boron cantilever
- Neodynium magnet and permendur yoke for increased magnetic concentration and energy
- PCOCC used for coils and terminal pins for pure electrical transmission
- Dual moving coil for high separation and wide response
- Especially strong and rigid VC mold holds the coils in place for minimized vibration
- Precision-crafted aluminum alloy body and hard resin structure designed for high rigidity, minimized vibration and improved signal to noise ratio
- Brass mounting screws designed to optimally produce high sound quality for the cartridge
 
Audio-Technica AT-OC9/III Cartridge Specifications
- Tonearm mount: Standard 1/2 inch 
- Type: Moving Coil, dual moving coil design 
- Frequency response: 15 - 50,000 Hz 
- Output voltage: 0.4 mV (1 kHz and 5 cm/sec) 
- Tracking force: 1.8 - 2.2 g (2.0 g standard)
- Recommended load impedance: Minimum 100 Ω
- Coil impedance: 12 Ω 
- DC resistance: 12 Ω 
- Channel separation: 30dB (1 kHz)
- Channel balance: better than 0.5dB (1 kHz)
- Dynamic compliance: 18.0 x 10-6cm/dyne (100Hz)
- Static compliance: 35 x 10-6cm/dyne
- Stylus: Contact Line diamond 0.0016 × 0.00028 inch (40 x 7 uM)
- Cantilever: 0.26 Solid boron 
- Vertical tracking angle: 23° 
- External size: H17.3.x W16.8 x L25.7 mm
- Weight: 8.0g
- Accessories included: Nonmagnetic Screwdriver (x1), washers (x2), stylus protector (x1), screws - 11mm (x2), 16mm (x2), nuts (x2), stylus brush (x1), PCOCC lead wire set(x1)