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Sanken COS-11D-BP Lavalier Phantom Powered Microphone

Sanken COS-11D-BP Lavalier Phantom Powered Microphone | Pro Audio Solutions

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Product Code : COS-11D-BP

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Sanken COS-11D-BP Lavalier Phantom Powered Microphone

*includes HC-11s Horizontal Clip, WS-11 Windscreen, RM-11 Rubber Mount

Superb Sound in Ultra-miniature Lavalier

  • New Rugged 2.1mm Cable
  • Ultra-Miniature
  • Perfect Omni-Directional from 50Hz to 20kHz
  • Unique Vertical Diaphragm Layout
  • Surface Noise Isolation
  • High Durability from Sweat and Cosmetics
  • Various kind of Applications

SANKEN COS-11D was designed using the unique "Vertical Diaphragm Layout" which provides superb sound from a microphone so small it is almost invisible.

The COS-11D has perfect OMNI Directional polar patterns from 20Hz to 20kHz, and very natural sound from 50Hz to 20kHz.The frequency response is consciously adjusted to the human voice. Suitable for a wide range of applications including musical theatre,TV news studio, ENG, TV-movie outdoor shooting and even live opera and pop recording. Available in various models, so that you can immediately use it with your existing wireless transmitter. After changing to the COS-11D from the attached transmitter microphone, you will enjoy a new world of sound. Also COS-11D has the model for normal phantom, wireless transmitters of many manufacturers, AA type battery and/or 12V to 52V phantom, and with no connector drivable from 3V to 10V DC.

Now, available in three versions:COS-11D (48V phantom), COS-11D-PT (no connector) and COS-11D-BP battery powered. Each version has "RED MARK" which is designed for close microphone setting and for loud voice, up to 136dB SPL. Each models is available in four colors: Gray, Black, White and Beige. Plus there are 11 colors windscreens to fit with any dress, jacket and hair. A wide range of accessories allows easy positioning.


  • 2.1mm rugged cabling resistant to sweat; stays soft and pliable even after extended use
  • 20Hz - 20,000Hz with 95dB dynamic range ( PT )
  • High output and low noise with extremely smooth omni-directional pattern control
  • PPS ( poly-phenylene-sulfide ) diaphragm provides humidity and temperature stability, outperforming all other condenser lavaliers
  • Vertical diaphragm placement protects against sweat and spray
  • Built-in 3-layer windscreen minimizes pops, sibilance and wind noise
  • Assortment of clips, rubber mounts, and outdoor windscreens
  • For High SPL Sound souce, Red Mark ( RM ) is available for all COS-11D Series.

Specifications COS-11D COS-11D-PT COS-11D-BP

Transducer type Back-electret condenser Back-electret condenser Back-electret condenser

Direction pattern Omni-directional Omni-directional Omni-directional

Frequency response 20 - 20,000Hz( ± 2dB) 20 - 20,000Hz( ± 2dB) 20 - 20,000Hz( ± 2dB)

Source impedance Approx.180 Ohms Approx.700 Ohms Approx.200 Ohms

Sensitivity at 1kHz 17.8mV/1Pa
(-35dB ± 2dB)
(-41dB ± 2dB)
6.0m V/1Pa
(-44.5dB ± 2dB)

Sensitivity at 1kHz
( Red Mark )

S/N to IEC 179 >66dB >66dB >66dB

Equivalent noise level Less than 28dB SPL
(0dB = 20µPA, IEC 179)
Less than 28dB SPL
(0dB = 20µPA, IEC 179)
Less than 28dB SPL
(0dB = 20µPA, IEC 179)

Max sound pressure
for 1.0%THD
127dB SPL 123dB SPL 120dB SPL

Max SPL ( Red Mark ) 136dB SPL 132dB SPL 129dB SPL

Total dynamic range 95dB Min. 94dB Min. 92dB Min.

Power supply 48V ±4V Phantom +3V to +10V 1.5V lEC R6battery or
12V - 52V Phantom

Current consumption 2mA 0.3mA 0.5mA(battery)

Output connector 3-pin XLR Connector-less 3-pin XLR

Connections pin-1 = ground
pin-2 = audio hot
pin-3 = audio cold
Shield = ground
White = audio hot
Black = DC power
pin-1 = ground
pin-2 = audio hot
pin-3 = audio cold

Dimensions Ø4.0mm x16.1mm Ø4.0mm x16.1mm Ø4.0mm x16.1mm

Supplied accessories WS-11 windowscreen, RM-11 rubber mount and HC -11s holder clip

COS-11D "RED MARK" : When you order "RED MARK" version, please add -RM after the model number.

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