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Sanken COS-11D Omni Lavalier Microphone with Normal Sensitivity & Servo-Bias TA5F Connector for Lectrosonics Transmitters (No Accessories, White)

BH #SAC11ANLSM • MFR #SAN-11DANWHSMLE
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Sanken COS-11D Omni Lavalier Microphone with Normal Sensitivity & Servo-Bias TA5F Connector for Lectrosonics Transmitters (No Accessories, White)
Key Features
  • For Broadcast, Film/Video & Presentation
  • Omnidirectional for Consistent Levels
  • Wired For Lectrosonics Servo-Bias TA5M
  • Normal Sensitivity Level
The white Sanken COS-11D Omni Lavalier Microphone with Normal Sensitivity and Hardwired Servo-Bias TA5F Connector for Lectrosonics Transmitters is a subminiature lav microphone designed to deliver clear, full-bodied sound and reliable performance, making it a popular choice among industry professionals in broadcast, TV, theater, film, videography, and more. 
More Details

Sanken COS-11D Overview

The white Sanken COS-11D Omni Lavalier Microphone with Normal Sensitivity and Hardwired Servo-Bias TA5F Connector for Lectrosonics Transmitters is a subminiature lav microphone designed to deliver clear, full-bodied sound and reliable performance, making it a popular choice among industry professionals in broadcast, TV, theater, film, videography, and more. 

Engineered to meet the standards of modern digital wireless microphone systems, the COS-11D is RF shielded to eliminate interference issues and ensure a pristine audio signal. The microphone capsule features a rectangular design that sits vertically, increasing the surface area and allowing this little mic to offer a rich, full sound that outperforms many larger models.

The mic's 50 Hz to 20 kHz frequency response rolls-off extreme low end and provides accurate, transparent audio reproduction with a small presence boost in the 6 kHz area for crisp, intelligible speech. With a forgiving omnidirectional polar pattern that picks up sound in a 360° pattern, levels stay consistent, even when the subject turns away from the mic.

A water-resistant mesh screen protects against humidity, perspiration, makeup, bad weather, and other potential on-location issues, while the durable cable is also moisture-resistant and built to stay soft and pliable, even after extended use. This version of the COS-11D terminates in a TA5F connector and is wired for use with servo-bias Lectrosonics transmitters. Accessories are available separately and are not included with this configuration of the microphone.

Servo-Bias TA5F Connector
Compatible Wireless Transmitters
  • Lectrosonics: Works with Lectrosonics bodypack transmitters and recorders equipped with a servo-bias TA5M connector, including models in the SM and L Series as well as the UM400a, UM450, LMb, MTCR, and DBu (TA5M version) models.
  • Also works with third-party wireless transmitters and portable audio recorders that are equipped to supply 3 to 10 VDC through a TA5M connector wired for servo-bias Lectrosonics compatibility.
Broadcast-Quality Sound and Dependable Performance
Subminiature Mic with a Big Sound
The camera-ready COS-11D features a subminiature capsule that enables the microphone to be inconspicuous and easily disguised in clothing or costumes. The unique vertical diaphragm design offers a clear and natural sound optimized for the human voice.
Normal Headroom for Standard Speech
This version of the mic features a normal sensitivity setting for standard speech levels up to 123 dB SPL.
Omnidirectional Polar Pattern
The forgiving omnidirectional polar pattern picks up sound from all around the mic and provides a consistent frequency response, even for off-axis sound. This helps to supply clear, intelligible speech and vocals, even when the talent isn't speaking directly toward the microphone.
Tough, Water-Resistant Construction for Indoor/Outdoor Locations
The water-resistant front mesh screen provides reliable protection from perspiration and moisture, making the mic a solid performer in all kinds of weather. The rugged cable is also built to resist moisture and handling noise and stay pliable, even after repeated uses.

Sanken COS-11D Specs

Key Specs
Compatible Transmitters
Lectrosonics:
Polar Pattern
Omnidirectional
Power Sources
Plug-In Power
Color
White
Microphone
Compatible Transmitters
Lectrosonics: (Transmitter Models Unspecified)
Polar Pattern
Omnidirectional
Included Tone/Pattern Caps
No
Performance
Frequency Response
50 Hz to 20 kHz
Maximum SPL
123 dB
Sensitivity
8.9 mV/Pa
Dynamic Range
95 dB
Equivalent Noise Level
28 dB (A-Weighted)
Connectivity
Analog Output Connector
1x TA5F/Mini-XLR 5-Pin Female
Cable Length
5.9' / 1.8 m
Cable Diameter
0.1" / 2.1 mm
Power
Power Sources
Plug-In Power
Operating Voltage
3 to 10 V
Physical
Color
White
Environmental Resistance
Water-Resistant (Unrated)
Dimensions
ø: 0.2 x L: 0.6" / 4 x L: 16.1 mm
Weight
0.8 oz / 24 g (Microphone)
Packaging Info
Package Weight
0.2 lb
Box Dimensions (LxWxH)
4.7 x 3.1 x 1.4"

Sanken COS-11D Reviews

Worth it

By Steve
Rated 5 out of 5
Date: 2026-08-13

I had perfectly good Sony ECM-77 mics, but these are much better. Cable noise issues have disappeared. Easy to work with and hide. Better audio quality.

Sanken COS-11D Omni Lav Mic

By Marcos
Rated 5 out of 5
Date: 2026-03-30

The industry standard. It is extremely well made. The audio excellent even without any eq. Small footprint that is easy to hide behind clothing. It's expensive, but worth the price.

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