Offering the realism of a live sound field, the AT4050ST is a side-address condenser with cardioid and figure-of-eight elements configured in a Mid-Side arrangement. This innovative stereo condenser allows sound recordists the choice of selecting a left-right stereo output or choosing discrete Mid-Side signals for later manipulation, a remarkable flexibility. The microphones dual-diaphragm capsules maintain precise polar pattern definition across the full frequency range. Its transformerless circuitry virtually eliminates low-frequency distortion.Main Features:Innovative side-address Mid-Side stereo microphone engineered for professional recording, broadcast and sound reinforcementIndependent cardioid and figure-of-eight condenser elementsSwitch selection of Mid-Side mode and two internally matrixed stereo modesDual-diaphragm capsules maintain precise polar pattern definition across the full frequency range of the microphoneTransformerless circuitry virtually eliminates low-frequency distortion and provides superior correlation of high-speed transientsThe 2-micron-thick, vapor-deposited gold diaphragms undergo a five-step aging process so that the optimum characteristics remain constant over years of useOpen acoustical environment of the symmetrical housing assembly minimizes unwanted internal reflectionsIntegral 80 Hz high-pass filter switch and 10 dB pad switchState-of-the-art design and manufacturing techniques ensure compliance with A-Ts stringent consistency and reliability standardsCustom shock mount provides superior isolationCertified by the METAlliance (Music Engineering and Technology Alliance)Specifications:ELEMENT Externally-polarized (DC bias) condenserPOLAR PATTERN Cardioid and Figure-of-eightFREQUENCY RESPONSE 20-18,000 HzLOW FREQUENCY ROLL-OFF 80 Hz, 12 dB/octaveOPEN CIRCUIT SENSITIVITY Stereo 90: -42 dB (7.9 mV) dB re 1V at 1 PaStereo 127: -41 dB (8.9 mV) dB re 1V at 1 PaMid: -36 dB (15.8 mV) dB re 1V at 1 PaSide: -36 dB (15.8 mV) dB re 1V at 1 PaIMPEDANCE 50 ohmsMAXIMUM INPUT SOUND LEVEL Mid and Side: 149 dB SPL, 1 kHz at 1% T.H.D.; 159 dB SPL, with 10 dB pad (nominal)NOISE Stereo 90: 25 dB SPLStereo 127: 16 dB SPLMid: 15 dB SPLSide: 17 dB SPLDYNAMIC RANGE (typical) Mid: 134 dB, 1 kHz at Max SPLSide: 132 dB, 1 kHz at Max SPLSIGNAL-TO-NOISE RATIO Stereo 90: 69 dB, 1 kHz at 1 PaStereo 127: 78 dB, 1 kHz at 1 PaMid: 79 dB, 1 kHz at 1 PaSide: 77 dB, 1 kHz at 1 PaPHANTOM POWER REQUIREMENTS 48V DC, 6.4 mA typical (both channels total)SWITCHES 90, 127, M-S; Flat, roll-off; 10 dB pad (nominal)WEIGHT 517 g (18.2 oz)DIMENSIONS 193.0 mm (7.60″) long, 53.4 mm (2.10″) maximum body diameterOUTPUT CONNECTOR Integral 5-pin XLRM-typeCABLE 5.0 m (16.5′) long, 8-conductor, shielded, vinyl-jacketed stereo cable with 5-pin XLRF-type connector at microphone end and two 3-pin XLRM-type connectors at output end ACCESSORIES FURNISHED AT8449 shock mount for 5/8″-27 threaded stands; microphone dust cover; protective carrying case AUDIO-TECHNICA CASE STYLE R1