Behringer HD400 Ultra-Compact 2-Ch Hum Destroyer

Brand:|Model: HD400
The HD400 ultra-compact 2-channel hum destroyer by Behringer may be small in size, but there is nothing lacking in its performance, with the ability to eliminate AC hum, break ground loops, and convert back and forth between unbalanced and balanced signals.
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List Price$37.99
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Part # 248-6242
  • Removes AC hum and noise - fast, easy and reliable
  • Breaks ground loops safely, while keeping highest sonic quality
  • Automatically converts unbalanced to balanced signals without any signal loss
  • Two 1/4" TRS inputs and outputs for 2 mono or 1 stereo signal
  • High-quality components and exceptionally rugged construction ensure long life
  • Conceived and designed by BEHRINGER Germany

Product Details

Behringer HD400 Ultra-Compact 2-Ch Hum Destroyer

This HD400 super-compact solution removes AC hum and noise quickly, easily and reliably, whether you are recording or performing.

Mighty Hum Hunter
The HD400 features two channels that can eliminate hum in two mono signals or one stereo signal. Try putting it between a stereo mixer and your power amps for a squeaky-clean sound free of AC hum. It breaks ground loops safely while maintaining the highest sound quality. It can even convert unbalanced signals into balanced without any signal degradation.

A Hum Killer of a Deal
This incredibly handy piece of gear is small enough to ride to the gig in your pocket. Pick up a HD400 today and make AC hum a thing of the past.

Specifications: • Input connector: 1/4" TS, balanced • Input impedance: 500 ohms • Output connector: 1/4" TS, balanced • Output  impedance: 600 ohm • Dimensions: Approx. 1-1/4" H x 2-1/4" W x 4-1/16" D (32 x 57.2 x 103.6 mm) • Weight: Approx. 0.36 lbs. (180 g).

Behringer HD400 Ultra-Compact 2-Ch Hum Destroyer
  • BrandBehringer
  • ModelHD400
  • Part Number248-6242
  • UPC4033653010870
  • Product CategoryIsolators & Hum Eliminators
  • Unit of MeasureEA
  • Product Rating
    (2 Reviews)
  • Weight0.55 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Behringer HD400 Ultra-Compact 2-Ch Hum Destroyer
Behringer HD400 Ultra-Compact 2-Ch Hum Destroyer is rated 4.5 out of 5 by 2.
Rated 4 out of 5 by from This did the job...I play guitar for my church's Praise band. We were having some serious buzz between the the band's monitor system and the main board where we patched in the vocals off of the hearback system into our monitors...this device eliminated ALL the noise...good noticable sound lose...The documentation that Behringer provides leaves something to be desired, but all in all, a good product.
Date published: 2013-09-25
Rated 5 out of 5 by from Works great.Works as advertised and amazing well for the dollar amount. I recently purchased a similiar product, ART Cleanbox II, and it didn't eliminate the hum going from my balanced cable to the unbalanced device. Maybe 50% reduction in hum. So I tried the behringer and it totally emliminated the hum. Sound quality remained good. It is a thin cheap metal box but adequate for most applications.
Date published: 2010-01-22
  • 2015-10-13T07:09CST
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Product Q&A

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Behringer HD400 Ultra-Compact 2-Ch Hum Destroyer

My plan is to use this in a car audio system with unbalanced inputs and outputs and need a frequency response of 20-20KHz. Will this work?

Asked by: Fixer
This will accept unbalanced inputs via 1/4" connectors. Unfortunately Behringer does not specify frequency response, you will have to contact them directly for more information regarding this.
Answered by: MattP
Date published: 2013-06-20

I have a total of 3 amps in my rack for a carvin sound system.Do I need a noise filter for each amp,or is there a way to bypass between the crossover?

Asked by: gforcerox
Hum destroyers are a band-aid. Hum is a symptom of a problem, not the problem itself. Humming can almost always be eliminated by making changes in your signal and/or power cabling arrangement. If you have 3 amps in your system and have hum in all of them, you really need to take a close look at your rig and see what your doing wrong. Study up on ground loop problems and invest in some good signal cables. Ground lifting transformers (which is what these are) should be a last resort.
Answered by: Matt Dupuy
Date published: 2015-04-28
  • 2015-10-13T08:07CST
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