The Audio-Technica AT4040 is a side-address condenser microphone meticulously engineered to deliver smooth, natural sonic characteristics. Crafted with precision and artistic inspiration, this microphone boasts advanced large diaphragm technology, offering exceptionally low noise, wide dynamic range, and high-SPL capability for unparalleled versatility. Whether used in studio recordings or live performances, the AT4040 excels under the demands of digital recording systems, ensuring consistent, transparent reproduction across various applications. Its symmetrical and transformerless low-noise circuitry enhances transient response and delivers clean output signals, making it suitable for capturing the nuances of instruments and sound effects with precision. The microphone's robust construction, coupled with state-of-the-art electronics, guarantees reliability and consistency in performance.
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Technically-advanced large diaphragm tensioned specifically to provide smooth, natural sonic characteristics

Externally polarized (DC bias) true condenser design

Exceptionally low noise, wide dynamic range, and high-SPL capability for greatest versatility

Transformerless circuitry virtually eliminates low-frequency distortion and provides superior correlation of high-speed transients

Precision-machined, nickel-plated brass, acoustic element baffle provides enhanced element stability and optimal sensitivity

Open acoustical environment of the symmetrical housing assembly minimizes unwanted internal reflections

State-of-the-art surface-mount electronics ensure compliance with A-T’s stringent consistency and reliability standards

Custom shock mount provides superior isolation

Switchable 80 Hz hi-pass filter and 10 dB pad

Element Externally-polarized (DC bias) condenser
Polar Pattern Cardioid
Frequency Response 20-20,000 Hz
Low Frequency Roll Off 80 Hz, 12 dB/octave
Open Circuit Sensitivity -32 dB (25.1 mV) re 1V at 1 Pa
Maximum Input Sound Level 145 dB SPL, 1 kHz at 1% T.H.D.; 155 dB SPL, with 10 dB pad (nominal)
Noise 12 dB SPL
Dynamic Range 133 dB, 1 kHz at Max SPL
Signal-to-Noise Ratio 82 dB, 1 kHz at 1 Pa
Phantom Power Requirements 48V DC, 4.2 mA typical
Switches Flat, roll-off; 10 dB pad (nominal)
Weight 12.7 oz (360 g)
Dimensions 6.69″ (170.0 mm) long, 2.10″ (53.4 mm) maximum body diameter
Output Connector Integral 3-pin XLRM-type
Accessories Included AT8449a shock mount for 5/8″-27 threaded stands; microphone dust cover; protective carrying case
Audio-Technica Case Style R1

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