Audio-Technica AT8031 Cardioid Condenser Handheld Microphone


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Dale #:AUDI-AT8031

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  • The AT8031 is ideal for close-up interviews, vocals, overheads, piano, and strings. Its cardioid polar pattern reduces pickup of sounds from the sides and rear, improving isolation of desired sound source. The mic's proximity effect provides added warmth when used close up. Features include a large protective screen that reduces "popping" and sibilant distortion. It operates on battery or phantom power.

    • All-purpose condenser microphone ideal for interviews,voice-overs, air studio and general audio acquisition
    • Cardioid polar pattern reduces pickup of sounds from the sides and rear, improving isolation of desired sound source
    • Switchable 80 Hz high-pass filter minimizes pickup of undesired low-frequency sounds
    • Large protective screen reduces "popping" and sibilant distortion
    • Operates on battery or phantom power

    The AT8031 requires 11V to 52V DC phantom power or a 1.5V AA battery for operation. A battery need not be in place for phantom power operation.Battery installation: Unscrew the lower section of the microphone body, just below the nameplate. Insert a fresh 1.5V AA battery in the handle compartment ("+" end up), then reassemble the microphone. Alkaline batteries are recommended for longest life.Remove the battery during long-term storage.Output from the microphone's XLRM-type connector is low impedance (Lo-Z) balanced.

    The signal appears across Pins 2 and 3; Pin 1 is ground (shield). Output phase is "Pin 2 hot" "–positive acoustic pressure produces positive voltage at Pin 2.To avoid phase cancellation and poor sound, all mic cables must be wired consistently: Pin 1-to-Pin 1, etc.An integral 80 Hz high-pass filter provides easy switching from a flat frequency response to a low-end roll-off. The roll-off position reduces the pickup of low-frequency ambient noise (such as traffic,air-handling systems, etc.), room reverberation and mechanically coupled vibrations.

    The high sensitivity of the AT8031 assures useful output and an excellent match to most input sources. In some cases, however,an attenuator such as the Audio-Technica AT8202 may be required between the microphone and preamplifier to avoid overloading sensitive input stages.The microphone is RoHS compliant"–free from all substances specified in the EU directive on hazardous substances.Avoid leaving the microphone in the open sun or in areas where temperatures exceed 110 deg. F (43 deg. C) for extended periods.Extremely high humidity should also be avoided.

  • ELEMENTFixed-charge back plate permanently polarized condenser
    LOW FREQUENCY ROLL-OFF80 Hz, 12 dB/octave
    OPEN CIRCUIT SENSITIVITY(Phantom / Battery)–44 dB (6.3 mV) /–45 dB (5.6 mV) re 1V at 1 Pa
    IMPEDANCE (Phantom / Battery)250 ohms / 300 ohms
    MAXIMUM INPUT SOUND LEVEL(Phantom / Battery)137 dB / 123 dB SPL,1 kHz at 1% T.H.D.
    DYNAMIC RANGE (typical)(Phantom / Battery)113 dB / 99 dB,1 kHz at Max SPL
    SIGNAL-TO-NOISE RATIO70 dB, 1 kHz at 1 Pa
    BATTERY CURRENT / LIFE0.4 mA / 1200 hours typical(alkaline)
    SWITCHFlat, roll-off
    WEIGHT (less accessories)205 g (7.2 oz)
    DIMENSIONS193.0 mm (7.60) long,50.3 mm (1.98) head diameter
    OUTPUT CONNECTORIntegral 3-pin XLRM-type
    ACCESSORIES FURNISHEDAT8405a stand clamp for 5/8-27 threaded stands; 5/8-27 to 3/8-16 threaded adapter; AT8114 windscreen; battery; soft protective pouch
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