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CAD Audio

CAD Audio 901R Boundary condenser microphone - is currently on backorder. You may still purchase now though and we'll ship as soon as more become available.

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Brand New ConditionMore InfoThis product is in the box as received from the manufacturer and comes with the original warranty.

  • Boundary condenser microphone
  • For use on altars, conference tables, stage floors, and television productions
  • Improved radio frequency immunity
  • Hi-pass filter removes unwanted low frequency energy
  • Advanced transformerless design
  • Requires phantom power
  • Rugged perforated steel screen construction
  • Includes 30' feet cable with a miniature 3-pin connector

The ASTATIC 901R is a superior low noise, electret condenser cardioid surface mounted boundary microphone. It has been redesigned with improved RF immunity to greatly reduce susceptibility to radio interference from GSM based cell phones, PDA/cell phones with walkie-talkie capability and other similar devices. It is ideal for use on altars, conference tables, stage floors, or television productions.
The 901R's electronics features an advanced transformerless design and is self-contained to eliminate the need for mounting any external boxes. The cardioid pickup pattern minimizes annoying feedback when used close to sound reinforcement speakers and monitors, while reducing the pickup of unwanted off axis sounds. The integral 80Hz, 12dB/oct hi-pass filter removes unwanted low frequency energy.

  • Operating Principle: Electret
  • Condenser Polar Pattern: Cardioid
  • Frequency Response: 100Hz - 20kHz
  • Sensitivity: -33dBV (22mV) @ 1Pa
  • Impedance: 150ohms
  • Self Noise: 25dBA
  • Max SPL: 127dB, 1% THD
  • Power Requirements: P12, P24, P48, 2.4 mA
  • Dimensions: 4-9/32" x 3" (109 x 76 mm)