Audio-Technica AT4050ST Stereo Condenser Microphone Innovative side-address Mid-Side stereo microphone engineered for professional recording, broadcast and sound reinforcement Independent cardioid and figure-of-eight condenser elements Switch selection of Mid-Side mode and two internally matrixed stereo modes Dual-diaphragm capsules maintain precise polar pattern definition across the full frequency range of the microphone Transformerless circuitry virtually eliminates low-frequency distortion and provides superior correlation of high-speed transients