Audio-Technica AT4047/SV Cardioid Studio Condenser Microphone with Pad, HPF and Shock Mount


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  • The rich, warm sound takes you back to the classic F.E.T. studio microphones. But there's nothing remotely old-fashioned about the technology behind that vintage sound. The AT4047/SV studio condenser's dual-diaphragm capsule design maintains precise polar pattern definition across the full frequency range.

    The AT4047/SV is intended for use in professional applications where remote power is available. It requires 48V DC phantom power, which may be provided by a mixer or console, or by a separate, in-line source such as the Audio-Technica AT8801 singlechannel and CP8506 four-channel phantom power supplies.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 high-pass position reduces the microphone’s sensitivity to popping in close vocal use.

    It also reduces the pickup of low-frequency ambient noise (such as traffic, air-handling systems, etc.), room reverberation and mechanically coupled vibrations.In use, secure the cable to the mic stand or boom, leaving a slack loop at the mic. This will ensure the most effective shock isolation and reduce the possibility of accidentally pulling the microphone out of its mount.Avoid leaving the microphone in the open sun or in areas where temperatures exceed 110° F (43° C) for extended periods. Extremely high humidity should also be avoided.

    • Transformer-coupled output and a specially tuned element provide warm sonic characteristics reminiscent of early F.E.T. studio microphone designs
    • Exceptionally wide dynamic range, low self-noise and high SPL capability for maximum versatility
    • Dual-diaphragm capsule design maintains precise cardioid pattern definition across the full frequency range of the microphone
    • Precision-machined, nickel-plated brass, acoustic element baffle provides enhanced element stability and optimal sensitivity
    • 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
    • Custom shock mount provides superior isolation
  • ELEMENTExternally polarized (DC bias) condenser
    LOW FREQUENCY ROLL-OFF80 Hz, 12 dB/octave
    OPEN CIRCUIT SENSITIVITY–35 dB (17.7 mV) re 1V at 1 Pa*
    IMPEDANCE250 ohms
    MAXIMUM INPUT SOUND LEVEL149 dB SPL, 1 kHz at 1% T.H.D.;159 dB SPL, with 10 dB pad (nominal)
    NOISE19 dB SPL
    DYNAMIC RANGE (typical)140 dB, 1 kHz at Max SPL
    SIGNAL-TO-NOISE RATIO185 dB, 1 kHz at 1 Pa*
    SWITCHESFlat, roll-off;10 dB pad (nominal)
    WEIGHT (less accessories)14.5 oz (410 g)
    DIMENSIONS6.69 (170.0 mm) long, 2.10;(53.4 mm) maximum body diameter
    OUTPUT CONNECTORIntegral 3-pin XLRM-type
    ACCESSORIES FURNISHEDAT8449/SV shock mount for 5/8-27 threaded stands; microphone dust cover;protective carrying case
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