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Astatic Continuously-Variable Polar Pattern Condenser Boundary Microphone (Black)

B&H # AS901VP MFR # 901VP
Astatic Continuously-Variable Polar Pattern Condenser Boundary Microphone (Black)


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CAD Audio's Continuously-Variable Polar Pattern Condenser Boundary Microphone is a continuously-variable polar pattern condenser boundary microphone. Special attention has been taken to design the 901VP to resist interference from devices such as cell phones and two-way communication devices. The integral 80Hz, 12dB/octave high-pass filter removes unwanted low-frequency energy to improve intelligibility. The all metal body and shock absorbing rubber bottom make for easy placement on almost any surface.

When placed on a hard surface, the 901VP will take advantage of the "boundary effect" signal-to-noise ratio increase. The 901VP is terminated with a TA3M-type connector recessed in the body of the microphone. The 901VP comes with 30' (9.1 m) of detachable microphone cable that is terminated with a standard 3-pin XLRM-type connector.

The 901VP features a continuously-variable polar pattern that can shorten the list of products an audio system designer needs to consider when boundary condenser microphones are specified. The installer can precisely tailor the polar pattern for the best performance depending upon the application or environment.

The polar pattern of the 901VP can be changed remotely by setting the onboard variable pattern control to figure-of-eight and adding CAD Audio's Remote Variable Pattern Control Box (VPC-1) between the microphone and audio mixer. The pattern can also be electronically controlled by utilizing the 40-360 DSP cable and corresponding software with compatible digital signal platforms.

The 901VP is primarily designed for speech and vocal pickup in governmental, institutional, religious and business applications.

Continuously-variable polar pattern control
Securable variable pattern controls
Remote Variable Pattern compatible when used with Variable Pattern Control box (VPC-1)
Remote Variable Pattern through compatible digital signal platforms when used with 40-360 cable
All metal housing, suitable for commercial applications
RF (radio frequency) Resistant Architecture
Integrated high-pass filter for elimination of unwanted low-frequency energy
Shock-absorbing rubber pad
Operating Principle Condenser
Polar Pattern Continuously-variable
Frequency Response 100Hz -20KHz
Sensitivity -33dBV (22.4mV) @ 1Pa
Self Noise 22dBA
Power Requirements P12, P24, P48, 4mA
Polarity Positive pressure on diaphragm corresponds to positive voltage on pin 2 relative to pin 3 at XLR3M-type connector
Dimensions Overall: 4.24 x 3 x 0.75" (109 x 76 x 20 mm)
Mounting Holes: 1.5" (38 mm) Apart
Weight 6.7 oz 0.19 kg)
SPL Maximum: 120dB, 1% THD, 1KHz
Impedance 150 ohms
Connector 3 Pin - TA3M-type
Finish Durable matte-black urethane
Other Specifications The microphone will be a boundary condenser type. The microphone will have a continuously-variable polar pattern. The sensitivity of the microphone will be -33dBV (22.4mV) @ 1Pa. The frequency response will be 100Hz-20KHz. The impedance of the microphone will be 150 ohms. The self noise will be 22dBA. The maximum SPL will be 120dB. The microphone will include an integral 80Hz, 12dB/octave high-pass filter to improve intelligibility. The microphone will have a TA3M-type connector allowing for rear exit. The microphone will operate on P12, P24 or P48 standard phantom power consuming 4mA.

The microphone element and electronics will be enclosed in a radio frequency resistant housing meeting or exceeding EN55103-2. The 901VP will be 4.3" (109 mm) long, 3.0" (76 mm) wide and 0.8" (20 mm) high. The net weight (mass) will be 2oz (0.06 kg) not including the cable. The packaged weight [mass] will be 6oz (0.17 kg). The 901VP will have a durable matte-black urethane finish.

The Astatic model 901VP is specified.
Packaging Info
Package Weight 1.0 lb
Box Dimensions (LxWxH) 9.5 x 4.5 x 3.0"
Astatic Continuously-Variable Polar Pattern Condenser Boundary Microphone (Black)
  • Limited 5-Year Warranty
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