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Core Sound TetraMic
TetraMic Specifications

(Last updated 06/26/2007)

Preliminary Specifications

  • Microphone Type: tetrahedral, single-point Ambisonics surround sound
  • Raw capsule information:
    • Number: four
    • Medium-sized diaphragm: ~12 mm
    • Pattern: cardioid
    • Type: electret condensor
  • TetraMic pattern: variable, selected at decode
  • Capsule ordering and channel assigment (the "front" of TetraMic is indicated by the "Core" logo):
    • Channel 1: LFU (left/front/up)
    • Channel 2: RFD (right/front/down
    • Channel 3: LBD (left/back/down
    • Channel 4: RBU (right/back/up)
  • Capsules tested, selected and matched into sets, with calibration data supplied to "VVMic for TetraMic" decode software
  • Frequency response:
    • Raw: 40 Hz - 18.5 KHz +/- 4 dB
    • Corrected: 30 Hz - 18.5 KHz +/- 2 dB
  • Self noise: 19 dBA per capsule
  • Phase: inverting when used with Core Sound PPA; non-inverting with 4Mic
  • Maximum SPL per capsule: 135 dB
  • Sensitivity per capsule: 14 mV/Pa
  • Output connector:
    • compatible with Switchcraft TB6M (mates with TA6F)
    • breaks out via breakout cable to four 3-pin mini-XLR plugs (P3), compatible with Switchcraft TA3F
  • Power:
    • 4.5 to 6 VDC into breakout cable's 3-Pin mini-XLR plugs
    • 48 Volt Phantom Power with optional PPA (Phantom Power Adapter, compatible with Audio Technica AT8531 Power Module and many others)
    • approximately 15 mA @ 48 VDC total (3.5 mA per capsule) when using PPA

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For pre-sales consulting or to place an order, call Core Sound at 1.888.937.6832 or 1.201.801.0812.

"Core Sound Microphones" is a trademark of Core Sound, LLC
"Core Sound" is a trademark of Core Sound, LLC
"PDAudio", "TetraMic", "HeadLine", "2Phant" and 4Mic are trademarks of Core Sound, LLC
Thanks to HK Audio for use of their open-air concert photo. Mossman photo ©2004 OceanBridge Communcations.
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