--- 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: "₹ 4579" currency: INR in_stock: true reviews_count: 13 category: "Behringer" url: https://www.desertcart.in/products/48286229-hd400-ultra-compact-2-channel-hum-eliminator-ground-loop-noise store_origin: IN region: India --- # Passive design, no power needed 2-channel hum elimination RCA & TRS versatile connectivity 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:** ₹ 4579 **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?** ₹ 4579 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/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 - • **Pure Sound Integrity:** Preserves original audio quality with zero coloration or signal degradation. - • **Plug & Play Simplicity:** Ultra-compact, passive design means zero power hassles and seamless integration. - • **Buzz-Free Audio, Always:** Eliminates ground loop hum for crystal-clear sound in any setup. - • **Dual-Channel Powerhouse:** Process two mono or one stereo signal simultaneously without compromise. - • **Universal Compatibility:** RCA and TRS connectors fit effortlessly with your DJ gear, home studio, or hi-fi system. ## Overview The Behringer HD400 is a compact, passive 2-channel hum eliminator designed to eradicate ground loop noise and buzzing in audio systems. Featuring versatile RCA and TRS connectivity, it supports hi-fi, DJ, and home studio setups without requiring power. Its ultra-compact design ensures easy integration while maintaining pristine sound quality, making it a must-have for professionals seeking interference-free audio. ## 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: 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. 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 | | Audio Input | TRS | | Best Sellers Rank | 919 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 1,956 Reviews | | Frequency | 20 Hz | | Item Dimensions D x W x H | 10.4D x 5.7W x 3.2H centimetres | | Item Weight | 0.49 Pounds | | Item weight | 0.49 Pounds | | Manufacturer | Behringer | | Manufacturer Part Number | P0387 | | Model Number | HD400 | | Noise Level | 60 Decibels | | Number of Channels | 2 | | Number of Items | 1 | | 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 ![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) ## 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 ### ⭐⭐⭐⭐⭐ 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. ### ⭐⭐⭐⭐⭐ 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 --- ## 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.in/products/48286229-hd400-ultra-compact-2-channel-hum-eliminator-ground-loop-noise](https://www.desertcart.in/products/48286229-hd400-ultra-compact-2-channel-hum-eliminator-ground-loop-noise) --- *Product available on Desertcart India* *Store origin: IN* *Last updated: 2026-08-24*