The Sanken CUB-01 is a boundary microphone with front side cardioid directivity, and offers an exclusive design which overcomes the limitations of other boundary microphones, producing an extremely rich and full-bodied sound. Although small (32.5mm diameter, 14mm height, 45g weight) the sound is comparable with much larger microphones. The CUB-01 is designed for use in many situations, from TV and film field shooting to broadcast studio production and conference table recording. Because of its small size it is easy to conceal from the camera, and can be positioned in a variety of environments, for example, attached to the ceiling of a car with two-sided sticky tape.


Generally speaking, most boundary microphones have almost the same sound characteristics, heard as "thin," "solid," and "metallic." Using Sanken's advanced technology, the CUB-01 has resolved this problem with its unique square-shaped cardioid capsule housing the diaphragm. This proprietary design significantly enlarges the effective area of the diaphragm, resulting in a boundary microphone whose sound is rich and natural, with a flat response to 70Hz. Now it is possible to capture a "full bodied" and "clear" sound.  Due to the CUB-01's cardioid directional characteristics, human narration and dialogue are clearly caught while excluding unnecessary background noise.


This CUB-01 comes with the stock XLR connector.  Please check out the other options or call us if you would like it modified with a different connector.  The CUB-01 is available in gray or beige.  There may be a little longer of a wait for beige.




• Clear and rich sound

• Small size, easy to set up

• Front side of hemisphere cardioid directivity


Cardioid/front side of hemisphere 


Self-polarised condenser 

Frequency Range

60Hz - 15kHz 

Sensitivity (nominal at 1kHz)

40mV/Pa (-28dB,0dB=1V/Pa) 

Equivalent Noise Level (A-weighted)


Max SPL (1% THD)

120 dB SPL

Output Impedance at 1 kHz

180 Ohms


+48 ± 4V phantom

Current Consumption

Less than 1.8mA 


32.5mm (diameter) X 14.0mm 


45g (1.5 oz) (including cable) 



Sanken - CUB-01 Boundary Microphone (XLR only)

  • Brand: Sanken
  • Product Code: CUB-01-GY, CUB-01-BE
  • $489.00

Available Options