--- product_id: 48286229 title: "Behringer 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: "€ 38.21" currency: EUR in_stock: true reviews_count: 13 category: "Behringer" url: https://www.desertcart.at/products/48286229-behringer-hd400-ultra-compact-2-channel-hum-eliminator-ground-loop store_origin: AT region: Austria --- # Passive design, no power needed 98-99% hum & noise elimination 2-channel stereo & mono processing Behringer 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:** € 38.21 **Availability:** ✅ In Stock ## Summary > 🔊 Kill the hum, keep the vibe — sound clarity that demands your attention! ## Quick Answers - **What is this?** Behringer 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?** € 38.21 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/48286229-behringer-hd400-ultra-compact-2-channel-hum-eliminator-ground-loop) ## 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 - • **Silence the Buzz:** Eliminates ground loop hum and digital interference for crystal-clear audio. - • **Dual-Channel Power:** Process two mono or one stereo signal simultaneously with zero signal loss. - • **Plug & Play Simplicity:** Ultra-compact, lightweight, and requires no external power—just connect and go. - • **Universal Compatibility:** RCA and TRS connectors fit seamlessly into any DJ, studio, or hi-fi setup. - • **Pro-Grade Sound Integrity:** Preserves original audio quality without coloration or frequency loss. ## Overview The Behringer HD400 is a compact, passive 2-channel hum eliminator designed to eradicate ground loop noise and digital interference in audio setups. Featuring RCA and TRS connectivity, it processes stereo or dual mono signals without power or signal degradation, making it an essential tool for DJs, home studios, and hi-fi enthusiasts seeking pristine sound quality and hassle-free integration. ## Description From the manufacturer HD400 Ultra-Compact 2-Channel Hum Destroyer Removes AC hum and noise - fast, easy and reliable Breaks ground loops safely, while keeping highest sonic quality 2 independent channels for 2 mono or 1 stereo signal Automatically converts unbalanced to balanced signals without signal loss MICROHD HD400 The HD400 is the ultra-affordable way to quickly and easily clean up your act! Whether you’re recording or performing, it’s important to keep AC hum out of the mix. No matter the quality of the venue’s wiring, the MICROHD HD400 Hum Destroyer eliminates AC hum quickly and reliably. Mighty Hum Hunter The HD400 features two channels allowing you to eliminate hum in two mono signals or one stereo signal. Placing the HD400 in-line between your stereo mixer and 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 your unbalanced signals into balanced without any signal degradation. Hum Killer of a Deal The incredibly-handy MICROHD HD400 is small enough to ride to the gig in your pocket, but really big when it comes to cleaning up your sound. Pick one the HD400 at your local Behringer dealer, or get yours online today – and make AC hum a thing of the past! 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: Great for home studio PC / Interface digital interference problem. - My use for this is was to try to remove digital intereference commonly noticeable when connecting USB audio interface to a monitoring amp ( or possibly powered monitors ) in a home studio PC / Interface setup. Not so much hum problem but the spitting/crackling data noise, and a sound as if someone is blowing a kazoo in the distance every time the mouse is moved. For me this worked perfectly connecting it between the Interface Line outs and the monitoring amp. No interference / hum whatsoever and, more importantly, no discernable degradation or alteration of the quality of the actual audio signal. I can't say for sure that it will be 100% for all configurations that people have. Hum / interference can be a bit of a dark art, but I can wholeheartedly recommend this based on my own experience. Noise not dropped / lowered etc, but gone completely as would be expected of the use of audio isolating txformers. ## 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 | | Audio Input | TRS | | Best Sellers Rank | 1,786 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 2 in Rack Effects & Signal Processors | | Brand | Behringer | | Brand Name | Behringer | | Connectivity Technology | XLR, TRS | | Connectivity technology | XLR, TRS | | Country of Origin | China | | Customer Reviews | 4.3 out of 5 stars 1,953 Reviews | | Frequency | 20 Hz | | Item Dimensions D x W x H | 10.4D x 5.7W x 3.2H centimetres | | Item Weight | 220 g | | Item weight | 220 g | | Manufacturer | Behringer | | Manufacturer Part Number | P0387 | | Model Number | HD400 | | Noise Level | 60 Decibels | | Number of Channels | 2 | | Number of channels | 2 | | Output Connector Type | TRS | | Power Source | No power source required | | Power source | No power source required | | Product Warranty | Community. Musictribe. Com. Support. | | Product dimensions | 10.4D x 5.7W x 3.2H centimetres | | UPC | 736211577047 | ## 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 ![Behringer 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) ![Behringer 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 2](https://m.media-amazon.com/images/I/813mP5oW2qL.jpg) ![Behringer 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 3](https://m.media-amazon.com/images/I/71O4pGIokyL.jpg) ![Behringer 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 4](https://m.media-amazon.com/images/I/51nzbI22CJL.jpg) ![Behringer 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 5](https://m.media-amazon.com/images/I/51kn2ZSiNfL.jpg) ## Available Options This product comes in different **Style** options. ## 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! ### ⭐⭐⭐⭐⭐ Great for home studio PC / Interface digital interference problem. *by G***E on 7 January 2026* My use for this is was to try to remove digital intereference commonly noticeable when connecting USB audio interface to a monitoring amp ( or possibly powered monitors ) in a home studio PC / Interface setup. Not so much hum problem but the spitting/crackling data noise, and a sound as if someone is blowing a kazoo in the distance every time the mouse is moved. For me this worked perfectly connecting it between the Interface Line outs and the monitoring amp. No interference / hum whatsoever and, more importantly, no discernable degradation or alteration of the quality of the actual audio signal. I can't say for sure that it will be 100% for all configurations that people have. Hum / interference can be a bit of a dark art, but I can wholeheartedly recommend this based on my own experience. Noise not dropped / lowered etc, but gone completely as would be expected of the use of audio isolating txformers. ### ⭐⭐⭐⭐ Does the job for me which is good enough but.... *by A***N on 20 January 2019* This product done the job in eliminating static sound but it doesn't make the sound premium for me, as I still get minor hissing when I increase my volume. I bought these as I stream on twitch using a Behringer Mixer (Q802usb) but in my streams I was getting a horrible static background noise so purchasing these cured the sound and lets me listen to both my pcs at a decent sound yet if I was to blast the sound down my headphones it will create hissing and echoing but then I do have a entry level mixer. Overall review is good as it does its job properly but if you want premium quality then upgrade your mixer and hum destroyers. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/48286229-behringer-hd400-ultra-compact-2-channel-hum-eliminator-ground-loop](https://www.desertcart.at/products/48286229-behringer-hd400-ultra-compact-2-channel-hum-eliminator-ground-loop) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-07-25*