Audio-Technica AT4040 Cardioid Condenser Microphone

Made for professional recording, broadcast, and sound reinforcement, the Audio-Technica AT4040 is a side-address cardioid condenser microphone with a large, specially tensioned diaphragm.

Its externally polarized (DC bias) condenser element is tensioned for smooth, natural sound, and its symmetrical, transformerless circuitry virtually eliminates low-frequency distortion while keeping high-speed transients clean. A precision-machined, nickel-plated brass baffle keeps the acoustic element stable, and the open, symmetrical housing minimizes unwanted internal reflections. Self-noise is 12 dB SPL, with an 82 dB signal-to-noise ratio and a 133 dB dynamic range.

The cardioid pattern is most sensitive to sound directly in front of the element, which helps control feedback, reduce pickup of unwanted sounds, and isolate one performer from another. A raised Audio-Technica emblem marks the front, which faces the sound source. A switchable 80 Hz high-pass filter reduces popping in close vocal use, low-frequency ambient noise such as traffic and air-handling systems, room reverberation, and mechanically coupled vibration. A switchable 10 dB pad raises its maximum input from 145 to 155 dB SPL.

The AT4040 needs 48 V phantom power, drawing 4.2 mA, and its balanced, low-impedance output comes from an integral 3-pin XLR connector. The included AT8449a shock mount fits any microphone stand with 5/8″-27 threads. The AT4040 also comes with a dust cover and a protective carrying case.

Features

• Side-address cardioid condenser for recording, broadcast, and sound reinforcement
• Large diaphragm tensioned for smooth, natural sound
• Externally polarized (DC bias) condenser element
• Transformerless circuitry virtually eliminates low-frequency distortion
• Nickel-plated brass baffle and open, symmetrical housing
• Switchable 80 Hz high-pass filter
• Switchable 10 dB pad, for up to 155 dB SPL
• 12 dB SPL self-noise and 133 dB dynamic range
• AT8449a shock mount, dust cover, and carrying case included