Audio-Technica AT4050ST Stereo Condenser Microphone Broadcast Recording

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.

Key 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-Ts stringent consistency and reliability standards
• Custom shock mount provides superior isolation
• Certified by the METAlliance (Music Engineering and Technology Alliance)

Technical Specs

ELEMENT
Externally-polarized (DC bias) condenser
POLAR PATTERN
Cardioid and Figure-of-eight
FREQUENCY RESPONSE
20-18,000 Hz
LOW FREQUENCY ROLL-OFF
80 Hz, 12 dB/octave
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
DYNAMIC RANGE (typical)
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)
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 diameter
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
ACCESSORIES FURNISHED
AT8449 shock mount for 5/8"-27 threaded stands; microphone dust cover; protective carrying case
AUDIO-TECHNICA CASE STYLE
R1