The new standard for 3D audio.

Two years of research and development.

Advanced audio engineering methods.

Precision micro-fabrication techniques.

The result is the most accurate wearable binaural microphone for 3D audio recording.

Learn more.

3D audio at your fingertips.
Capture three-dimensional sound fields with remarkable spatial fidelity. The BACCH-BM Pro allows you to record sound exactly as you hear it. Ready to use with any two-channel recorder or microphone preamp capable of supplying +48 V phantom power, it's perfect for field recording, studio recording, and virtual reality content creation.
designed for in-ear use.
The BACCH-BM Pro was designed with the human ear in mind. Unlike many other binaural microphones, BACCH-BM Pro capsules are small enough to fit in your ear canal, allowing them to effectively capture the spectral cues of your pinnae and produce true binaural recordings that are spatially accurate. Easily changeable ear plugs ensure a snug and comfortable fit for ears of all shapes and sizes.
best-in-class performance.
Thanks to its ASIC amplifier, which provides high ESD and RFI tolerance as well as consistent biasing characteristics compared to single FET amplifiers, the BACCH-BM Pro has the highest signal-to-noise ratio, sensitivity, and frequency extension of any microphone its size.
individually calibrated and equalized.
Each microphone is individually calibrated and equalized to generate a flat frequency response (+/- 1 dB) from 20 Hz to 30 kHz. Every BACCH-BM Pro ships with custom equalization filters and calibration files.
100% made in USA.
The BACCH-BM Pro microphone capsules are hand-made in the United States, gold-plated for corrosion resistance and reduced self-noise, and individually tested and stereo matched.



Electret condenser (proprietary design)

polar pattern


microphone size

5.6 mm capsule diameter, 11.7 mm length

phantom power

+48 V

frequency range (+/- 1 dB, w/ EQ)

20 Hz - 30,000 Hz


-35 dB re. 1 V/Pa (±3 dB); 17.8 mV/Pa

equivalent noise level

27 dB(A)

s/n ratio re. 1 kHz @ 1 Pa (94 dB SPL)

67 dB

BACCH-BM Pro Binaural Microphone
  • two microphone capsules (l&r channels) w/ anti-tangle cable terminated in xlr5 male connector
  • high-precision analog signal conditioning circuit embedded in xlr5 connector
  • xlr5 female to dual-xlr3 male y-cable adapter
  • individualized microphone calibration card w/ technical specs, frequency responses, and equalization curves
  • usb drive w/ equalization filters and files
  • microphone clip
  • durable metal case
  • 20 small, medium, and large washable earbuds