audio technica / AT4021

This stick-type instrument microphone features a double wave diaphragm for high sensitivity and ultra-low noise. Its enhanced mid- and low-frequency response reproduces the natural tones of cymbals, pianos, acoustic guitars, and more.

■Condenser microphone, back electret type
■Unidirectional
■Frequency response: 20-20,000Hz
■Sensitivity: -34dB
■Maximum input sound pressure level (1kHz, THD 1%): 148dB S.P.L.
■Low cut: 80Hz, 12dB/oct.
■ATT: 10dB
■Signal-to-noise ratio (1kHz, 1Pa): 78dB or higher
■Output impedance: 250Ω
■Power supply: Phantom DC 11-52V, 3mA
■Weight: 119g
■Accessories: AT8405a microphone holder, windscreen

~From the manufacturer's website~
・A new stick-type instrument microphone in the 40 series featuring a newly developed φ19.2 large-diameter diaphragm.

- Features a newly developed ""Double Wave Diaphragm (PAT.P.)"" for class-leading sensitivity and ultra-low noise levels.

Improved mid- and low-frequency response delivers clear, natural response for instruments such as metal, piano, and acoustic guitar.


Includes an 80Hz, 12dB/octave high-pass filter that effectively cuts out background noise, and a -10dB pad switch that's useful in any environment.


Enhanced RF protection against mobile phones, wireless intercoms, and radio waves. Significantly reduces noise, eliminating problems in harsh environments.


Complies with the European RoHS Directive.