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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.
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 | 0.5 mV (1 kHz, 5 cm/sec.) |
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) |
Mount | Half-inch |
Weight | 8.5 g (0.30 oz) |
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 |
Product Weight (lbs.) | 0.0200 |
Width (in.) | 0.67 |
Depth (in.) | 1.01 |
Height (in.) | 0.68 |
Frequency Response | 15 - 50,000 Hz |
Manufacturer Warranty | 1 Year |