--- product_id: 298198110 title: "SilentPower - GND Defender - Intelligent Ground Control, IEC Connector Ground Loop Remover" brand: "ifi" price: "806 zł" currency: PLN in_stock: true reviews_count: 13 category: "I Fi" url: https://www.desertcart.pl/products/298198110-silentpower-gnd-defender-intelligent-ground-control-iec-connector-ground-loop store_origin: PL region: Poland --- # EMI shielding intact Zero hum ground loop elimination Medical-grade IEC connectors SilentPower - GND Defender - Intelligent Ground Control, IEC Connector Ground Loop Remover **Brand:** ifi **Price:** 806 zł **Availability:** ✅ In Stock ## Summary > 🔇 Silence the noise, amplify your clarity. ## Quick Answers - **What is this?** SilentPower - GND Defender - Intelligent Ground Control, IEC Connector Ground Loop Remover by ifi - **How much does it cost?** 806 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/298198110-silentpower-gnd-defender-intelligent-ground-control-iec-connector-ground-loop) ## Best For - ifi enthusiasts ## Why This Product - Trusted ifi brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Pure Audio, Zero Buzz:** Eliminates ground loop hums for crystal-clear sound - • **Next-Level SilentPower:** The latest model offers unmatched versatility for professional setups - • **Safe & Sound Grounding:** Ensures your entire system stays securely grounded without compromise - • **EMI Shielding Preserved:** Maintains electromagnetic interference protection for pristine audio fidelity - • **Hospital-Grade Reliability:** Equipped with medical-grade IEC connectors for ultimate durability ## Overview The SilentPower GND Defender is a compact, intelligent ground loop remover featuring medical-grade IEC connectors that eliminate annoying audio hums while preserving EMI shielding and ensuring safe grounding—perfect for professionals demanding flawless sound quality. ## Description Product description iFi’s GND Defender is the latest is the SilentPower range and a further example of iFi’s quest for quieter power. The GND Defender is designed with adaptability in mind and can be used in any system with IEC connectors. Removing the annoying hums and buzzes present in audio systems is something iFi’s SilentPower range does best and this device is our most versatile solution to this issue so for. From its sleek white design, to its Hospital-grade IEC connectors, everything about this device has been meticulously considered and polished. If you can hear a hum or buzz through your speakers, it is likely that you have a ground loop problem. This occurs when two or more audio components in a system are connected to a common ground (or earth) point via different paths – for example, if two different wall sockets on the same circuit are used to power different components in a single audio/AV system in which the components are connected via electrical (as opposed to optical) signal cables. If a problematic ground loop exists, the GND Defender resolves the issue by disconnecting the loop running through the connected component. By using one or several GND Defenders in a hi-fi system, the user can ensure that all components are connected to a common ground via a single path, eradicating the resulting hum through the speakers Interference caused by ground loops can also affect picture quality in AV systems, resulting in issues such as visible scrolling bands. The GND Defender will help to solve this problem, too. Review: Worked for me, but it's clear results may vary - I have recently overhauled my stereo setup, and part of that project involved replacing an old Polk DSW660Pro sub with a REL T/9x. It's a great sub, it integrates with my music far more seamlessly than the old sub did. But ever since the switch I have a low-grade hum coming from it whenever it was powered on. Tried a bunch of different things: I tried connecting both the high level Neutrik connection and an RCA cable to the .1LFE input; I tried different subwoofer cables, including expensive ones with chassis ground wires; I tried grounding other components in the chain; I was about ready to give up. However one last test I did was to remove all of the audio connections from the sub and power it on- in doing so, I noticed the hum was still there. So this was definitely a ground loop issue somewhere in the power chain. After reading other reviews here, and seeing that other REL sub owners had solved their issues with one of these, I decided to take a chance, figuring worst case scenario if it didn't work I could just return it. As soon as I plugged this into the back of the sub and connected the power cord into the other end, bingo! No more hum. I saw others complaining that this didn't fit snugly in the input socket on their component, but it was a tight fit in my case. One test you can try before you buy this is to take a cheap 3-prong female to 2-prong male plug adapter - you can buy one of these for less than $5 - and stick it on the end of the power cord for your affected device, then plug that into the socket. If your hum is gone, then this product will almost certainly work for you (and it will be much safer than leaving your device ungrounded with a 2-prong connection.) If you're struggling with hum in your HT/stereo setup, I can at least recommend giving this a try. Ground loop can have all sorts of different causes. so there's no guarantee this will work. But given that this item is available on Prime and a number of different sellers offer free returns, it's worth taking a chance on if you've had no luck with other suggested remedies. Review: Solved 60Hz hum caused by ground loop between my TV and AV processor via HDMI connection - OK, I must admit, I bought this as a last attempt to solve a bad 60Hz hum on my brand new Home Theatre sound system, which I'd identified as being caused by a ground loop between my TV and my AV processor, via the eARC HDMI interconnect. After a lot of research and YouTube watching, apart from physically "lifting" the ground from the TV, I did tried several solutions, including the HDMI silencer from iFi as well but nothing worked. Then I decided to buy try this product but was very skeptical it would make any difference. But to my surprise, it worked like a charm! I used it to plug the TV's power cable and immediately, the hum was absolutely gone! If this hadn't worked, I would need to run the TV's power cable down to the same TrippLite Isobar where the AV processor was connected so both would share the exact same ground, which would ruin the aesthetics because the cable would be visibly hanging on the wall. So, count me as a happy customer. This product might not work on every scenario, but it definitely worked better than I expected in my case. ## Features - ✅ GROUND LOOP ELIMINATION - Purifies audio to eliminate annoying hums and buzzes created by ground loops. - ✅ GROUND SAFE - Any system it connects to will remain safely grounded - ✅ EMI SHIELDING - EMI shielding is retained when using the GND Defender - ✅ MEDICAL GRADE IEC CONNECTORS - The GND DEFENDER comes with Hospital Grade IEC Connectors which ensure the reliability and robustness of the device - ✅ SILENT POWER - The latest in the SilentPower range. Now more versatile than ever. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08XWJNS9T | | Best Sellers Rank | #135,838 in Electronics ( See Top 100 in Electronics ) #2,996 in Audio & Video Power Cables | | Brand | iFi | | Color | White | | Compatible Devices | Audio Equipment, Desktop, Laptop | | Connector Type | IEC | | Customer Reviews | 4.2 out of 5 stars 285 Reviews | | Global Trade Identification Number | 05060738784202 | | Item Dimensions | 6.8 x 3.7 x 3.2 inches | | Item dimensions L x W x H | 6.8 x 3.7 x 3.2 inches | | Manufacturer | Abbingdon Music Research | | Mfr Part Number | GND | | Number of Items | 1 | | Number of Ports | 2 | | Package Quantity | 1 | ## Product Details - **Brand:** iFi - **Color:** White - **Compatible Devices:** Audio Equipment, Desktop, Laptop - **Data Link Protocol:** Ethernet - **Global Trade Identification Number:** 05060738784202 - **Hardware Interface:** Ethernet - **Manufacturer:** Abbingdon Music Research ## Images ![SilentPower - GND Defender - Intelligent Ground Control, IEC Connector Ground Loop Remover - Image 1](https://m.media-amazon.com/images/I/71aj0iEtltL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worked for me, but it's clear results may vary *by J***O on January 19, 2024* I have recently overhauled my stereo setup, and part of that project involved replacing an old Polk DSW660Pro sub with a REL T/9x. It's a great sub, it integrates with my music far more seamlessly than the old sub did. But ever since the switch I have a low-grade hum coming from it whenever it was powered on. Tried a bunch of different things: I tried connecting both the high level Neutrik connection and an RCA cable to the .1LFE input; I tried different subwoofer cables, including expensive ones with chassis ground wires; I tried grounding other components in the chain; I was about ready to give up. However one last test I did was to remove all of the audio connections from the sub and power it on- in doing so, I noticed the hum was still there. So this was definitely a ground loop issue somewhere in the power chain. After reading other reviews here, and seeing that other REL sub owners had solved their issues with one of these, I decided to take a chance, figuring worst case scenario if it didn't work I could just return it. As soon as I plugged this into the back of the sub and connected the power cord into the other end, bingo! No more hum. I saw others complaining that this didn't fit snugly in the input socket on their component, but it was a tight fit in my case. One test you can try before you buy this is to take a cheap 3-prong female to 2-prong male plug adapter - you can buy one of these for less than $5 - and stick it on the end of the power cord for your affected device, then plug that into the socket. If your hum is gone, then this product will almost certainly work for you (and it will be much safer than leaving your device ungrounded with a 2-prong connection.) If you're struggling with hum in your HT/stereo setup, I can at least recommend giving this a try. Ground loop can have all sorts of different causes. so there's no guarantee this will work. But given that this item is available on Prime and a number of different sellers offer free returns, it's worth taking a chance on if you've had no luck with other suggested remedies. ### ⭐⭐⭐⭐⭐ Solved 60Hz hum caused by ground loop between my TV and AV processor via HDMI connection *by E***S on March 8, 2025* OK, I must admit, I bought this as a last attempt to solve a bad 60Hz hum on my brand new Home Theatre sound system, which I'd identified as being caused by a ground loop between my TV and my AV processor, via the eARC HDMI interconnect. After a lot of research and YouTube watching, apart from physically "lifting" the ground from the TV, I did tried several solutions, including the HDMI silencer from iFi as well but nothing worked. Then I decided to buy try this product but was very skeptical it would make any difference. But to my surprise, it worked like a charm! I used it to plug the TV's power cable and immediately, the hum was absolutely gone! If this hadn't worked, I would need to run the TV's power cable down to the same TrippLite Isobar where the AV processor was connected so both would share the exact same ground, which would ruin the aesthetics because the cable would be visibly hanging on the wall. So, count me as a happy customer. This product might not work on every scenario, but it definitely worked better than I expected in my case. ### ⭐⭐⭐⭐⭐ It actually worked. *by M***N on March 28, 2026* This little device completely solved the coil whine issue with my new 9070xt. I was getting it really bad through my speakers but also through my fiio dac/amp through a USB connection. I tried every single combination of ports and plugs, routing through the monitor, high quality cables... Nothing worked at all until I tried this. It's expensive, but at least I can game without screeching sound driving me crazy. ## Frequently Bought Together - iFi SilentPower - GND Defender - Intelligent Ground Control, IEC Connector Ground Loop Remover - iFi LAN iSilencer – Ethernet Signal Noise Filter for Hi-Res Audio Systems – Removes Electrical Noise with Galvanic Isolation – Plug-and-Play RJ45 Isolator - iFi AC iPurifier - Mains Audio & Video Noise Eliminator/Line Conditioner/Filter/Isolator/Purifier/Whole Entertainment System Protection --- ## 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.pl/products/298198110-silentpower-gnd-defender-intelligent-ground-control-iec-connector-ground-loop](https://www.desertcart.pl/products/298198110-silentpower-gnd-defender-intelligent-ground-control-iec-connector-ground-loop) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-06-07*