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Behringer Behringer

Behringer MICROHD HD400 Stereo Hum Destroyer

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An ultracompact hum destroyer for crystal-clear audio.

The Behringer MICROHD HD400 is an impressively tiny 2-channel hum and noise eliminator perfect for anyone needing pristine audio on the go. With its dual-channel design, the MICROHD HD400 swiftly removes hum and noise from two independent sources, letting you plug in everything from guitars to keyboards with no AC buzz or unwanted noise. Supremely portable and needing no setup, the Behringer MICROHD HD400 is your solution for noise-free audio wherever your performances take you.

Dual-Channel Setup Eradicates Noise From Two Sources

The MICROHD HD400 boasts two independent channels to banish noise from two instruments or devices simultaneously. With its dual-channel design, you'll get pristine audio from multiple sound sources, whether you're jumping between guitar and keyboard on stage or mixing tracks in the studio. The MICROHD HD400's two-channel architecture ensures your entire signal chain is free of buzz, hum and other unwanted noise.

Passive Design Provides Transparent Audio Conversion

Completely passive with no need for batteries or external power, the Behringer MICROHD HD400 provides transparent hum-free conversion without altering your source audio. The unit's passive nature means no unnecessary circuitry stands between your instruments and the output, giving you uncompromised sonic quality from input to output. Without any powered components degrading or coloring the signal, what goes into the MICROHD HD400 comes out the other end free of noise and true to the original tone.

Breaks Ground Loops and Removes AC Hum

Through its passive yet effective conversion, the MICROHD HD400 breaks ground loops and eliminates AC hum that can sneak into your signal chain. The HD400 gives you clean, balanced audio free from the buzzing and humming caused by ground loops between electrical devices. It also removes any 50/60Hz AC hum from your amps or PA system. With the Behringer MICROHD HD400, you'll get noise-free signal integrity and protection from unwanted hum.


  • Ultracompact design for space efficiency
  • Eliminates hum from ground loops and AC sources
  • Ground lift switches for each channel
  • 1/4" TRS inputs and outputs for versatile connectivity

Order the Behringer MICROHD HD400 today.


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WARNING: This product can expose you to chemicals including Chromium (hexavalent compounds), which is known to the State of California to cause cancer, and to cause birth defects or other reproductive harm. For more information go to
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