AT-ART9
Discontinued
Dual Moving Coil Cartridge

AT-ART9

AT-ART9
  • Overview
  • Gallery
  • Features
  • Specifications

Overview

AT-ART9

Utilizing the same vibration system, neodymium magnet and permendur yoke as the AT-OC9/III MicroCoil™ cartridge, the AT-ART9 is designed to provide sound reproduction of the highest quality. The cartridge’s special line contact stylus, with a 40 µm × 7 µm curvature radius and a 0.26 mm diameter solid boron cantilever, enables an extremely accurate reading of the record groove and faithful transfer of the signal from the stylus tip to the magnetic coil. The VC mold design ensures stability and rigidity, while the dual moving coil (fashioned from high-performance PCOCC wire) offers excellent stereo separation and improved frequency response for long-lasting performance. The hybrid housing of machined aluminum and hard plastic, along with the machined aluminum base supporting the magnetic circuit and vibration system, reduces unwanted resonance and supports stable playback.
AT-ART9

Features

  • Premium magnetic core moving coil type cartridge
  • Builds on basic magnetic design of the limited-edition AT50ANV and vibration system of the AT-OC9/III
  • Special line contact stylus and solid boron cantilever with a 0.26 mm diameter
  • Neodymium magnet and permendur yoke significantly increase magnetic energy
  • PCOCC used for coils and terminal pins
  • Very high-quality magnetic circuit
  • VC mold design ensures stability and rigidity, limiting unnecessary coil movement and reducing distortion
  • Hybrid body of machined aluminum and hard plastic reduces unnecessary resonance
  • Machined aluminum base
  • High-separation, wide-response dual moving coil

Specifications

Cartridge & Stylus
Frequency Response 15-50,000 Hz
Channel Separation 30 (dB at 1 kHz)
Vertical Tracking Angle 23°
Vertical Tracking Force 1.6-2.0 g (1.8 g standard)
Stylus Construction Nude square shank
Recommended Load Impedance Min. 100 ohms
Coil Impedance 12 ohms (1 kHz)
DC Resistance 12 ohms
Coil Inductance 25 µH (1 kHz)
Output Voltage 0.5 mV (1 kHz, 5 cm/sec.)
Output Channel Balance 0.5 dB (1 kHz)
Stylus Shape Special line contact
Cantilever 0.26 mm diameter solid boron
Static Compliance 35 x 10-6 cm/dyne
Dynamic Compliance 18 x 10-6 cm/dyne (100 Hz)
Mounting Half-inch
Dimensions 17.3 mm (0.68") H × 17.0 mm (0.67") W × 25.6 mm (1.01") D
Accessories Included Non-magnetic screwdriver; 2 washers; 2 nuts; cartridge installation screws (12 mm × 2, 18 mm × 2); plastic protector; brush; PCOCC lead wire set
Body Material Aluminium
Mounting Feature Half-inch mount
Stylus Curvature Radius 1.5 x 0.28 mil
Terminal Pins Brass
Type Magnetic Core Moving Coil
Weight 8.5 g (0.30 oz)
Notes Note: moving coil cartridges require receivers or preamps with compatible inputs; their stylus assemblies are not field-replaceable.