Product Details


Designed for indoor communication systems, including transportation, restaurant, and industrial applications. Suitable for environments with high levels of background noise.

Note: For proper operation, mouth-to-microphone distance should be 2 inches (5 cm) or less.


  • Frequency response tailored for voice communications
  • Minimal pick-up of background noise due to close-talk design
  • Hum-bucking coil reduces induced noise from computer displays
  • Attaches to flexible gooseneck arm (not included)
  • Two conductor, shielded, bare-ended (no connector), straight cable
  • Does not require DC power for operation
Microphone Type
Polar Pattern
Frequency Response
Form Factor
Model Line
Type Dynamic, unidirectional (cardioid), close-talking
Frequency Response 100 to 7,000 Hz
lmpedance 170 ohms
Output Level -61.5 dBV/Pa (.84mV) : 1 Pa = 94 dBSPL; -41.5 dB (8.4 mV): 0 dB = 1V/100 microbar

Additional specifications are available in the user guide.


    A12 Mounting Flange

    Mounting Flange, 5/8''-27 Threaded.

    from $9

    A13HD & A13HDB Heavy Duty Mounting Flanges

    Heavy-duty mounting flange available in silver or black.

    from $12

    G12 Chrome Gooseneck, 12 inch

    12 inch (30.48 cm) chrome gooseneck.

    from $15

    G12B Black Gooseneck

    Black 12 inch (30.48 cm) gooseneck for Shure 503BG, 515BSL and 515BSLX microphones.

    from $21

    G18A Chrome Side-Vent Gooseneck

    18 Inch (46 cm) Chrome Side-Vent Gooseneck.

    from $18

    G27B Black Gooseneck

    27 inch (68.6 cm) black gooseneck for Shure 503BG, 515BSL, and 515BSLX microphones.

    from $32

    G6A Side-Vent Gooseneck

    Chrome side-vent gooseneck, 6-inch (15.24 cm).

    from $11

    R172 Cartridge for 503BG

    Replacement cartridge for the Shure 503BG microphone

    from $39

Software & Downloads

User Guides

File Language Type File Size
503BG User Guide

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