AT4050ST

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

Certified by the METAlliance (Music Engineering and Technology Alliance)

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

POLAR PATTERN

: STEREO 90

POLAR PATTERN

: STEREO 127

POLAR PATTERN

: MID, SIDE