Log In

Log In

Need an Account? Start Here

 

Microphones and Acoustics

Frequently Asked Questions

Get your most commonly asked acoustics questions answered.

Section I: Definitions and Terminology
Section II: Microphone Recommendations
Section III: Calibration and Testing
Section IV: Specification Clarifications
Section V: Specialty Microphone Applications
Section VI: Maintenance and Handling

If you don’t see the answer to your question, call our 24/7 SensorLineSM 716-684-0001 to speak with an application engineer or visit Ask the Acoustics Experts.

What are the black protective rubber caps on PCB® microphone/preamplifier systems used for?

The rubber caps supplied keep dirt or contamination out of the preamplifier connector. It is not intended to be used with the microphone. Keep the rubber maintenance caps on the preamplifier’s electrical connector only. Do not place these rubber caps over the microphone. This will create a vacuum and undesirable pressure on the microphone diaphragm. This pressure can stretch the diaphragm and cause a change in sensitivity.

What are the black protective rubber caps on PCB® microphone/preamplifier systems used for?

The rubber caps supplied keep dirt or contamination out of the preamplifier connector. It is not intended to be used with the microphone. Keep the rubber maintenance caps on the preamplifier’s electrical connector only. Do not place these rubber caps over the microphone. This will create a vacuum and undesirable pressure on the microphone diaphragm. This pressure can stretch the diaphragm and cause a change in sensitivity.