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Based on the limited-edition AT50ANV premium moving coil cartridge, the AT-ART7 features the same basic design but exchanges the titanium armature (coil-winding frame) for a liquid crystal polymer armature, which is both thinner and stronger and does a better job of suppressing the unwanted vibration from power generation. The cartridge’s magnetic circuit uses a large-sized neodymium magnet and is designed to maximize the strength of the intensive magnetic field in the coil gap, increasing the output voltage and enhancing playback of medium-to-low frequencies. The result is extremely natural, three-dimensional sound 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 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 provides stable playback.