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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 is the difference between PCB® model 130E22 and model 130A23?

Both are free-field array microphones with an SMB connector. The 130A23 uses a different design to allow for less variability in frequency response up to 20 kHz and increased dynamic range. The 130E22 allows more variability at high frequencies, and is priced more cost effectively.

What is the difference between PCB® model 130E22 and model 130A23?

Both are free-field array microphones with an SMB connector. The 130A23 uses a different design to allow for less variability in frequency response up to 20 kHz and increased dynamic range. The 130E22 allows more variability at high frequencies, and is priced more cost effectively.