AT-ART7
Discontinued
Dual Moving Coil Cartridge

AT-ART7

AT-ART7
  • Overview
  • Gallery
  • Features
  • Specifications

Overview

AT-ART7

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.
AT-ART7

Features

  • Premium magnetic core moving coil type cartridge, based on the design of the limited-edition AT50ANV
  • Liquid crystal polymer armature (coil-winding frame) suppresses unwanted vibration from power generation
  • Special line contact stylus and solid boron cantilever with a 0.26 mm diameter
  • Magnetic circuit with large-sized neodymium magnet significantly increases magnetic energy
  • PCOCC used for coils and terminal pins
  • Hybrid body of machined aluminum and hard plastic, along with the machined aluminum base, reduces unnecessary resonance
  • 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 8 µH (1 kHz)
Output Voltage 0.12 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 10 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; AT6101 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 Non 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.