The Denon AU-103 is a moving coil phono cartridge designed for high-end audio reproduction. It features a low-mass armature and a coil windings made of high purity copper wire for excellent tracking ability and transient response. The cartridge is known for its smooth and detailed sound reproduction, with a wide frequency response and low distortion. The Denon AU-103 is compatible with standard 1/2 inch mount turntable headshells and has an output voltage of 0.3 mV.