Audio Technica AT4050ST Stereo condenser microphone

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 microphone’s dual-diaphragm capsules maintain precise polar pattern definition across the full frequency range. Its transformerless circuitry virtually eliminates low-frequency distortion.

Product Features

• 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
• The 2-micron-thick, vapor-deposited gold diaphragms undergo a five-step aging process so that the optimum characteristics remain constant over years of use
• Open acoustical environment of the symmetrical housing assembly minimizes unwanted internal reflections
• Integral 80 Hz high-pass filter switch and 10 dB pad switch
• State-of-the-art design and manufacturing techniques ensure compliance with A-T’s stringent consistency and reliability standards
• Custom shock mount provides superior isolation

Product Specifications

General

• Element:  Externally-polarized (DC bias) condenser
• Polar Pattern:  Cardioid, Figure-of-eight, M/S
• Frequency Response:  20 - 18,000 Hz
• Open Circuit Sensitivity: 
  • Stereo 90°: -42 dB (7.9 mV) dB re 1V at 1 Pa
  • Stereo 127°: -41 dB (8.9 mV) dB re 1V at 1 Pa
  • Mid: -36 dB (15.8 mV) dB re 1V at 1 Pa
  • Side: -36 dB (15.8 mV) dB re 1V at 1 Pa
• Impedance:  50 ohms
• Maximum 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 SPL
  • Stereo 127°: 16 dB SPL
  • Mid: 15 dB SPL
  • Side: 17 dB SPL
• Low Frequency Roll Off:  80 Hz, 12 dB/octave
• Switches:  90°, 127°, M-S; Flat, roll-off; 10 dB pad (nominal)
• Dynamic Range:
  • Mid: 134 dB, 1 kHz at Max SPL
  • Side: 132 dB, 1 kHz at Max SPL
• Signal-to-Noise Ratio:
  • Stereo 90°: 69 dB, 1 kHz at 1 Pa
  • Stereo 127°: 78 dB, 1 kHz at 1 Pa
  • Mid: 79 dB, 1 kHz at 1 Pa
  • Side: 77 dB, 1 kHz at 1 Pa
• Phantom Power Requirements:  48V DC, 6.4 mA typical (both channels total)
• Output Connector:  Integral 5-pin XLRM-type
• Cable:  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
• Audio-Technica Case Style:  R1
• Accessories Included:  AT8449a shock mount for 5/8"-27 threaded stands; 5/8"-27 to 3/8"-16 threaded adapter; microphone dust cover; protective carrying case

Physical

• Weight:  517g
• Dimensions:  193.0 mm (7.60") long, 53.4 mm (2.10") maximum body diameter