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Earthworks CTB30-SS Omni Boundary Layer Table Top Microphone - Stainless Steel - 60Hz - 30kHz

    Earthworks CTB30-SS Omni Boundary Layer Table Top Microphone - Stainless Steel - 60Hz - 30kHz

    Manufacturer: Earthworks, Inc.

    Item #: ETW-CTB30-SS   •   MFG #: CTB30-SS


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    The Earthworks CTB30 High Definition Boundary Microphone is the perfect choice for high quality teleconferencing applications. It is a low profile, pristine sounding microphone solution for any conference or huddle space. Its extended high frequency response to 30kHz and Omni Semisphere polar response provide the same high intelligibility at virtually any point around a conference table or other surface on which the microphone is mounted. In addition, the extremely fast diaphragm settling time allows more subtle details and nuances of the human voice to be reproduced, which adds to the incredible clarity and intelligibility of the CTB30 at various distances from the microphone.

    The CTB30 incorporates a unique filter that significantly reduces low frequency table thumping and HVAC noise. In addition, it delivers an impressive reduction of unwanted sounds from paper and pens. Like all Earthworks microphones, the CTB30 is completely immune to RF interference from mobile phones and other RF sources. Measuring just 4.1 inches in diameter, the sleek design of the CTB30 fits seamlessly into any room.

    • Features

      • Specially engineered filter to minimize table thumping and HVAC noise
      • Reduced pickup of paper shuffling
      • 30kHz flat frequency response optimized for speech
      • Ultra high intelligibility
      • More gain before feedback
      • Near perfect polar pattern
      • True Semisphere omnidirectional polar pattern
      • RF resistant
      • Rubber, shock absorbing pads eliminate vibration noise
      • Designed to allow cable to exit from the rear or bottom of the microphone
      • Low profile design
      • Only 4.1 inches (10.4cm) in diameter
      • Available in black, white, silver or Nextel Dark Black finish
      • Primary applications include teleconferencing, distance learning, surveillance, boardrooms, government facilities, and ambient room miking
    • Specifications

      • Frequency Response: 60Hz to 30kHz -3dB @ 1 ft
      • Low Frequency Rolloff: 60Hz, 15dB/octave
      • Polar Pattern: Omni Semisphere
      • Sensitivity: -25dB
      • Power Requirements: 24-48V Phantom, 10mA
      • Max Acoustic Input: 136dB SPL
      • Dynamic Range: 116dB @ 1kHz
      • Output: XLR-3 (pin 2+)
      • Output Impedance: 65ω balanced
      • Min Output Load: 600 Ohms between pins 2 & 3
      • Noise: 19.5 dBA (Typical)
      • Microphone Color: White
      • Dimensions: 4.1 x 4.1 x 0.45 inches
      • Cable Length: 10 Foot with installed XLR-3M
      • Connector Type: Low profile cable terminated into a 3-pin XLR-M
      • Weight: 0.36 lbs.
    • Warranty

      • 15 Year

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