The AT4050 is a transformerless, multiple-pattern studio microphone designed for use in the most demanding applications. It utilizes dual gold-plated, aged, "large-diaphragm" condenser elements for extended frequency response. The microphone polar pattern can be switched for cardioid, omnidirectional or figure-of-eight operation. This, coupled with low-noise transformerless electronics, makes this microphone ideal for the most critical digital recordings.
Features:
Transparent uppers/mids balanced by rich low-end qualities combine with advanced acoustic engineering for extensive performance capabilities and highest quality
Dual-diaphragm capsule design maintains precise polar pattern definition across the full frequency range of the microphone
The 2-micron-thick, vapor-deposited gold diaphragms undergo a five-step aging process so that the optimum characteristics achieved remain constant over years of use
Three switchable polar patterns: omni, cardioid, figure-of-eight
Transformerless circuitry virtually eliminates low-frequency distortion and provides superior correlation of high-speed transients
State-of-the-art surface-mount electronics ensure compliance with A-T's stringent consistency and reliability standards
Switchable 80 Hz hi-pass filter and 10 dB pad
Includes AT8449 shock mount
Technical Info
Element: Condenser
Dynamic Range (Typical): 132 dB, 1 kHz at Max. SPL
Polar Pattern: Cardioid, Omni, Figure-of-eight
Phantom Power Requirements: 48V (±4V)
Frequency Response: 20 - 18,000 Hz
Switches: Polar pattern; 10 dB pad; roll-off
Open Circuit Sensitivity: -36 dB (15.8 mV), re 1V at 1 Pa
Low Frequency Roll-off: 80 Hz, 12 dB per octave
Impedance: 100 ohms
Weight: 18.0 oz (510 g)
Maximum Input Sound Level: 149 dB SPL, 1 kHz at 1% T.H.D.
Output Connector: XLRM-type
Signal to Noise Ratio: 77 dB, 1 kHz at 1 Pa
Accessories Furnished: AT8449 shock mount; microphone dust cover; protective case
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Because this item is used at your mouth or ear, it cannot be returned once opened due to health reasons. 
