Audio Technica AT-OC9ML/II

Dual Moving MicroCoil Stereo Phono Cartridge The AT-OC9ML/II Dual Moving MicroCoil cartridge represents a significant achievement in precision manufacturing, with tolerances on the order of a few microns. Strict quality control ensures that these tolerances, and thus the performance, are maintained across all AT-OC9ML/II cartridges.

Here are some highlights of the AT-OC9ML/II:

• Dual moving coil design for maximum channel separation
• High-flux samarium/cobalt magnet for higher voltage electrical signal
• PCOCC coil windings for improved transparency and reduced signal loss
• Gold-plated boron cantilever
• MicroLine stylus profile

Dual Moving Coil Cartridge

• Material: Aluminum
• Stylus Shape: Integral MicroLine (nude)
• Stylus Size: MicroLine
• Stylus Radii: MicroLine
• Stylus Assembly: Integral diamond stylus, square shank
• Cantilever: Solid boron, gold-plated

Measurements

• Frequency Response: 15 Hz to 50 kHz
• Channel Separation: 31 dB at 1 kHz
• Channel Balance: 1.0 dB (at 1 kHz)
• Output Voltage: 0.4 mV (at 1 kHz, 5 cm/s)
• Vertical Tracking Angle: 23°
• Vertical Tracking Force: 1.25 to 1.75 g (1.5 g standard)
• Static Compliance: 35 x 10⁻⁶ cm/dyne
• Dynamic Compliance: 9 x 10⁻⁶ cm/dyne (100 Hz)
• Coil Material: PCOCC
• Terminal Pins: PCOCC
• Recommended Load Impedance: 100 Ω minimum
• Coil Impedance: 12 Ohms
• DC Resistance: 12 Ohms
• Coil Inductance: 25 µH (at 1 kHz)

General

• Dimensions (W x H x D): 17.3 x 16.8 x 25.7 mm
• Cartridge Weight: 8 g
• Included Accessories:
  • Non-magnetic screwdriver
  • Anti-static stylus brush
  • 2 washers
  • 2 nuts
  • 2 mounting screws 13.5 mm
  • 2 mounting screws 18 mm
  • 1 plastic protector