---
product_id: 48286229
title: "HD400 Ultra-Compact 2-Channel Hum Eliminator, Ground Loop Noise Suppressor for Hi-Fi, DJ, Home Studio and Audio Systems, Passive Design with RCA TRS Compatibility"
brand: "behringer"
price: "NT$2020"
currency: TWD
in_stock: true
reviews_count: 12
category: "Behringer"
url: https://www.desertcart.tw/products/48286229-hd400-ultra-compact-2-channel-hum-eliminator-ground-loop-noise
store_origin: TW
region: Taiwan
---

# Passive design, zero power needed 98-99% hum noise reduction 2-channel stereo & mono processing HD400 Ultra-Compact 2-Channel Hum Eliminator, Ground Loop Noise Suppressor for Hi-Fi, DJ, Home Studio and Audio Systems, Passive Design with RCA TRS Compatibility

**Brand:** behringer
**Price:** NT$2020
**Availability:** ✅ In Stock

## Summary

> 🔊 Silence the buzz, amplify your vibe.

## Quick Answers

- **What is this?** HD400 Ultra-Compact 2-Channel Hum Eliminator, Ground Loop Noise Suppressor for Hi-Fi, DJ, Home Studio and Audio Systems, Passive Design with RCA TRS Compatibility by behringer
- **How much does it cost?** NT$2020 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/48286229-hd400-ultra-compact-2-channel-hum-eliminator-ground-loop-noise)

## Best For

- behringer enthusiasts

## Why This Product

- Trusted behringer brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Simplicity:** Ultra-compact, passive design means no power supply or complicated installation.
- • **Seamless Compatibility:** RCA and TRS connectors fit effortlessly with your DJ gear, mixers, and home studios.
- • **Buzz-Free Audio, Always:** Eliminates ground loop hum for crystal-clear sound without distortion.
- • **Dual-Channel Powerhouse:** Process two mono or one stereo signal simultaneously for versatile setups.
- • **Sound Integrity Preserved:** Maintains original audio quality with near-zero frequency response change.

## Overview

The Behringer HD400 is a compact, passive 2-channel hum eliminator designed to eradicate ground loop noise and buzzing in audio systems. Featuring RCA and TRS compatibility, it processes stereo or dual mono signals without power, preserving your sound’s original clarity. Ideal for DJs, home studios, and hi-fi setups, it delivers professional-grade noise suppression with minimal signal loss, making it a must-have for any serious audio enthusiast.

## Description

Eliminate ground loop hum and buzzing with this compact, passive 2-channel hum eliminator. Seamlessly integrate it with audio gear for a cleaner signal.

Review: Brilliant device , worth £14 all day long! - I’m going to start off by saying , I have a very bad EMI noise issue Between my PC , mixer and other audio equipment. I have hiss/static , whining and digital Hash noise. I bought a cheap £8 ground loop isolator , yes it fixed the noise but it completely ruined the bass , sounded like I blown my drivers and it was soft clipping my mixer Chanels. This one however is absolutely brilliant! The case is made of metal and it has a nice weight to it , the jacks have a nice click to them when inserting the cable which I like. This has fixed 98-99% of the noises I was getting with hardly zero frequency response change , like an extremely minuscule amount which really surprised me! The only very slight niggle I have is the moulded plastic packaging is extremely difficult to open and I had to resort to a Stanley knife which I nearly cut my finger off , just be careful 😂 Here are my personal ratings. Ease of use - 10/10 (very easy to use , plug and play) Device quality - 10/10 (feels solid and has a nice weight to it) Device look - 10/10 (looks professional) Sound quality - 10/10 (no sound changes at all) Noise reduction performance - 10/10 (absolutely obliterated the hiss/static , whining and digital hash noises) Value for money - 10/10 (worth every penny for £14 it’s a brilliant price) Overall , if you have issues like me and want to get rid of the noise that drives you crazy , GET ONE OF THESE!
Review: Highly recommend for sub hum - Great product and worked as expected. Sturdy design and passive so no need for power. I measured before and after and had a 2dB gain loss but didn't alter the frequency response at all from 20hz to 20Khz. Easy to setup and use. Got rid of the hum in my home cinema subs. Great price too.

## Features

- Effective Hum Removal – Designed to safely eliminate ground loop hum that can cause buzzing in your audio setup for a cleaner signal.
- 2-Channel Operation – Process two mono signals or one stereo source at once, ideal for hi-fi systems, mixers, and home studios.
- Compact Passive Design – Ultra-compact and lightweight unit requires no power supply and is simple to integrate with your gear.
- Versatile Connectivity – Features RCA and TRS connectors for seamless use with speakers, amplifiers, DJ setups and recording equipment.
- Clarity and Reliability – Built to preserve your original sound integrity without adding coloration, ensuring stable performance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000KUD2G4 |
| Best Sellers Rank | 3,895 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 3 in Rack Effects & Signal Processors |
| Guaranteed software updates until | unknown |
| Item model number | HD400 |
| Manufacturer | Behringer |
| Product Dimensions | 98.55 x 58.93 x 0.01 cm; 220 g |

## Product Details

- **Brand:** Behringer
- **Connectivity technology:** XLR, TRS
- **Item weight:** 0.49 Pounds
- **Number of channels:** 2
- **Product dimensions:** 10.4D x 5.7W x 3.2H centimetres

## Images

![HD400 Ultra-Compact 2-Channel Hum Eliminator, Ground Loop Noise Suppressor for Hi-Fi, DJ, Home Studio and Audio Systems, Passive Design with RCA TRS Compatibility - Image 1](https://m.media-amazon.com/images/I/81hdjkrQKeL.jpg)

## Questions & Answers

**Q: My pedal board is powered by a multiport ac adaptor. i get mains hum when plugged into amp (not pickup hum, not pedal noise) will this fix the hum?**
A: Depends on whether or not your hum (by hum we mean 50 or 100Hz interference) is due to a ground loop. Ground loops occur when there are two ground paths between a signal source and a destination. In the case of a pedal board with power supply and a guitar amplifier you have the safety grounds from the power supply to the mains plug and from the amplifier mains input and that mains plug. A loop is caused when you add a second ground connection through the signal lead between the pedals and the amp. This loop acts as a single turn of a coil and picks up the low frequency radiation from the mains supply and various nearby mains powered devices. This signal leaks in to your audio path and you hear hum. The Behringer HD400 contains transformers that pass your audio signal but break the audio ground connection side of a ground loop.

**Q: Hello, i get a lot of buzz from my td-3sr.

will it help eliminate that?**
A: I don't know. Basically it stops ground looping. When two electrical devices are connected and the hum is you being able to hear them fighting to be earth basically. I had ground looping on two amps daisy chained. And it definitely works to stop this.

**Q: I use focusrite itrack with an ipad.get buzz if i plug a guitar in (mic is fine). buzzing stops if i touch the lead or focusrite. will this help me?**
A: Sounds like you have an earthing problem with your guitar, does the buzz stop if you touch the strings?

**Q: can this be used along with a DAC such as the Scarlett 2i2 to stop speaker buzz when connected to a pc?**
A: I think so. I assume you mean you've got the scarlett connected to pc thorough USB. And when you connect your monitoring equipment to the scarlett's rear outputs, you're getting buzz. In these circumstances you might have ground loop, so it's likely that this box inserted between the line outs and monitors will help.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Brilliant device , worth £14 all day long!
*by C***H on 22 November 2025*

I’m going to start off by saying , I have a very bad EMI noise issue Between my PC , mixer and other audio equipment. I have hiss/static , whining and digital Hash noise. I bought a cheap £8 ground loop isolator , yes it fixed the noise but it completely ruined the bass , sounded like I blown my drivers and it was soft clipping my mixer Chanels. This one however is absolutely brilliant! The case is made of metal and it has a nice weight to it , the jacks have a nice click to them when inserting the cable which I like. This has fixed 98-99% of the noises I was getting with hardly zero frequency response change , like an extremely minuscule amount which really surprised me! The only very slight niggle I have is the moulded plastic packaging is extremely difficult to open and I had to resort to a Stanley knife which I nearly cut my finger off , just be careful 😂 Here are my personal ratings. Ease of use - 10/10 (very easy to use , plug and play) Device quality - 10/10 (feels solid and has a nice weight to it) Device look - 10/10 (looks professional) Sound quality - 10/10 (no sound changes at all) Noise reduction performance - 10/10 (absolutely obliterated the hiss/static , whining and digital hash noises) Value for money - 10/10 (worth every penny for £14 it’s a brilliant price) Overall , if you have issues like me and want to get rid of the noise that drives you crazy , GET ONE OF THESE!

### ⭐⭐⭐⭐⭐ Highly recommend for sub hum
*by J***. on 17 August 2025*

Great product and worked as expected. Sturdy design and passive so no need for power. I measured before and after and had a 2dB gain loss but didn't alter the frequency response at all from 20hz to 20Khz. Easy to setup and use. Got rid of the hum in my home cinema subs. Great price too.

### ⭐⭐⭐⭐ Successfully elimnated 95% of the ground loop hum
*by D***M on 4 November 2021*

I'm leaving this review for anybody who is wondering if this might solve the rather obscure problem that I had and what I wanted to use it for (couldn't find anywhere online to confirm if this would work for me or not pre-purchase). I have a mini home studio with a mixing desk being at the source - I use a DSLR camera (as a webcam) and wanted to run my XLR condensor mic through it, via the mixing desk, for better lip synch on live calls. When connecting the camera to the mixing desk (by using a dual TRS 1/4 inch to 1/8 inch cable) there was an awful ground loop hum. Very loud and made it untenable. I ordered this hum destroyer and hoped for the best.... I can confirm that this worked a treat and almost completely removed the ground loop hum when connected between the camera and mixing desk (you'll need an extra dual TRS 1/4 inch to 1/8 cable to do so - making it two in total) - only a very faint/quiet (and non-problematic) noise remains in the deep background, which you can take or leave. Good enough for me and exceeded my expectations at this price. If you happen to be trying to eliminate the same problem, I can confirm that this works. Decent little product for a fair price.

## Frequently Bought Together

- Behringer MicroHD HD400 Ultra-Compact 2 Channel Hum Destroyer
- Pyle Compact Mini Hum Eliminator Box - 2 Channel Passive Ground Loop Isolator, Noise Filter,AC Buzz Destroyer, Hum Killer w/ 1/4" TRS Phone,XLR Input/Output, Uses 1:1 Isolation Transformer
- Pyle Premium Direct Injection Audio Box - 2.36" x 4.09" Passive DI Unit Hum Eliminator w/ Input Attenuator to Connect Guitar & Bass, 1/4'' Impedance Transformer Connector to Balanced & Unbalanced XLR

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-01-22*