--- product_id: 178412001 title: "RCA Stereo 2 Channel Ground Loop Isolator Signal Noise Filter Suppressor Reducer Alternator for Car Audio Stereo（13600）" brand: "conext link" price: "HK$130" currency: HKD in_stock: true reviews_count: 13 category: "Conext Link" url: https://www.desertcart.hk/products/178412001-rca-stereo-2-channel-ground-loop-isolator-signal-noise-filter store_origin: HK region: Hong Kong --- # Filters DC current in signal path Eliminates humming & buzzing Gold-plated RCA connectors RCA Stereo 2 Channel Ground Loop Isolator Signal Noise Filter Suppressor Reducer Alternator for Car Audio Stereo（13600） **Brand:** conext link **Price:** HK$130 **Availability:** ✅ In Stock ## Summary > 🔊 Silence the buzz, amplify your vibe! ## Quick Answers - **What is this?** RCA Stereo 2 Channel Ground Loop Isolator Signal Noise Filter Suppressor Reducer Alternator for Car Audio Stereo（13600） by conext link - **How much does it cost?** HK$130 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/178412001-rca-stereo-2-channel-ground-loop-isolator-signal-noise-filter) ## Best For - conext link enthusiasts ## Why This Product - Trusted conext link brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact & Discreet:** Small 36x62mm size fits seamlessly behind your car or home stereo setup. - • **Powerful Noise Filter:** Handles up to 20A and 60W to keep your audio signal pure and interference-free. - • **Premium Build Quality:** Durable metal casing with heat shrink tube ensures long-lasting performance. - • **Plug & Play Simplicity:** Effortless installation between RCA inputs and outputs—no tech skills needed. - • **Crystal-Clear Audio, Zero Buzz:** Instantly banish annoying ground loop hum for pristine sound clarity. ## Overview The Conext Link AD104 RCA Stereo Ground Loop Isolator is a compact, metal-encased device designed to eliminate humming and buzzing caused by ground loop interference in car and home audio systems. Featuring gold-plated RCA connectors and capable of filtering DC current up to 20 amps and 60 watts, it delivers cleaner, clearer sound with easy plug-and-play installation. Perfect for professionals and audiophiles seeking flawless audio performance without the noise. ## Description Buy Conext Link RCA Stereo 2 Channel Ground Loop Isolator Signal Noise Filter Suppressor Reducer Alternator for Car Audio Stereo（13600）: Auxiliary Input Adapters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Great Fix for Audio Humming – Works Instantly. - The Conext Link AD104 RCA Stereo Ground Loop Isolator is an excellent solution for eliminating unwanted buzzing or humming in your audio system. I connected it between my car stereo and amplifier, and the annoying background noise disappeared immediately. The installation process couldn’t be easier just plug it between the RCA input and output. The device feels solid, with a durable metal casing and good-quality gold plated connectors that ensure a stable signal and long lasting use. The sound quality noticeably improved once the noise was gone. While it might slightly reduce the bass in some setups, the overall audio clarity is much better and definitely worth the trade off. It’s a compact, lightweight tool that’s easy to hide behind your system, making it perfect for both home and car audio. For the price, this is a highly effective and affordable way to resolve ground loop issues. I highly recommend it if you’re dealing with unwanted hums or interference in your stereo system. Review: Buzzing VCR output fixed! - This worked extremely well, cleared a lot of the buzzing up on my old VCR immediately. If you're using a component to HDMI converter and have an annoying buzz in the audio, this may be the fix you're looking for. ## Features - Eliminates Humming and Buzzing Between Audio Source and Amplifier Due to Ground Loop Issues - Filters Out DC Current in the Signal Path - Cylindrical Metal Case with Heat Shrink Tube. Dimension: Dia. 36mm, 62mm Long - Contain 28cm Long Interconnects, 2 Male and 2 Female RCA Gold Connectors - 20 Amp, Input 30 Watt Max 60 Watt, Frequency: 20-30K Hz ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B082GV15Y1 | | Best Sellers Rank | #2 in Car Amplifier Noise Filters | | Brand | Conext Link | | Brand Name | Conext Link | | Cable Type | Composite | | Color | Gold | | Compatible Devices | PC | | Compatible Phone Models | No Compatible Phone Models | | Connector Gender | Male-to-Female | | Connector Type | RCA | | Customer Package Type | Standard Packaging | | Customer Reviews | 4.1 out of 5 stars 963 Reviews | | Frequency | 30 KHz | | Indoor Outdoor Usage | Indoor, Outdoor | | Item Length | 6.2 centimeters | | Item Shape | Round | | Manufacturer | Conext Link | | Maximum Current | 20 A | | Maximum Voltage | 12 volts | | Model | AD104 | | Model Name | Conext Link AD104 | | Number of Items | 2 | | Number of Pins | 2 | | Other Special Features of the Product | Ground Loop Isolation | | Outer Material | Metal | | Part Number | AD104 | | Recommended Uses For Product | improving audio signal quality in car audio and home stereo systems | | Special Feature | Ground Loop Isolation | | UPC | 713001601861 | | Unit Count | 1 Count | | Wattage | 60 watts | ## Product Details - **Brand:** Conext Link - **Cable Type:** Composite - **Compatible Devices:** PC - **Connector Type:** RCA - **Special Feature:** Ground Loop Isolation ## Images ![RCA Stereo 2 Channel Ground Loop Isolator Signal Noise Filter Suppressor Reducer Alternator for Car Audio Stereo（13600） - Image 1](https://m.media-amazon.com/images/I/61QUslLM72L.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Can this work on a home stereo.** A: Yes, it works both in car audio and home audio application **Q: Have yamaha rx-750. Rca bose bookshelf speakers. If I place a unit for each speaker wire directly will this stop ground loop hum?** A: Depends , what I have noticed with my system is the hum has more to do with how your system is wired. To be honest it actually killed some of my bass. Hope this helps. **Q: Are the female connectors the input or output? Or maybe direction doesn't matter?** A: The female connectors are usually used as the input because the RCA cables are already run from the head unit to the amplifier using a male to male cable. And then you find out there is hum that needs to be eliminated. The female side allows the existing cable to be used by unplugging the RCA cable from the amplifier and plugging into this noise filter and then the noise filter male connectors plug into the amplifier. Electronically it should work with either side as the input because it is a passive filter. But I've never needed to use male connector as the input because I always put the noise filer as close to the amplifier as possible. I don't think either side is labeled as "input" so you should be able to use it with the male connector as the input. **Q: will this work if I'm getting some hissing noise when connecting a digital piano to a stereo receiver?** A: Well it filtred out ac from Mixer to powered speakers ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Fix for Audio Humming – Works Instantly. *by M***. on July 3, 2025* The Conext Link AD104 RCA Stereo Ground Loop Isolator is an excellent solution for eliminating unwanted buzzing or humming in your audio system. I connected it between my car stereo and amplifier, and the annoying background noise disappeared immediately. The installation process couldn’t be easier just plug it between the RCA input and output. The device feels solid, with a durable metal casing and good-quality gold plated connectors that ensure a stable signal and long lasting use. The sound quality noticeably improved once the noise was gone. While it might slightly reduce the bass in some setups, the overall audio clarity is much better and definitely worth the trade off. It’s a compact, lightweight tool that’s easy to hide behind your system, making it perfect for both home and car audio. For the price, this is a highly effective and affordable way to resolve ground loop issues. I highly recommend it if you’re dealing with unwanted hums or interference in your stereo system. ### ⭐⭐⭐⭐⭐ Buzzing VCR output fixed! *by M***N on June 29, 2026* This worked extremely well, cleared a lot of the buzzing up on my old VCR immediately. If you're using a component to HDMI converter and have an annoying buzz in the audio, this may be the fix you're looking for. ### ⭐⭐⭐⭐⭐ Fixed that super annoying buzzing sound *by B***E on October 14, 2023* Got a new amp to drive my computer speakers but would get an incredibly annoying buzzing or hum when the GPU was doing something complex. I was afraid I spent so much money on a graphics card only for it to have a problem with the motherboard causing noise to come from the aux output. Was looking up causes and solutions on the internet and heard about a "ground loop" but wasn't sure if that's what was happening here. Figured "for that price, why not give it a shot". This little guy works miracles. No perceptible change in audio quality, and that buzzing noise just VANISHED. I guess it was a ground loop after all. Crystal clear sound, and I didn't have to crank up the volume after plugging it in. I can't speak for its ability to eliminate alternator interference, but as far as being a ground loop isolator, it is fantastic. Would recommend. Couldn't be happier. ## Frequently Bought Together - Conext Link RCA Stereo 2 Channel Ground Loop Isolator Signal Noise Filter Suppressor Reducer Alternator for Car Audio Home Stereo（13600） - BOSS Audio Systems Ground Loop Isolator B25N noise Filter for Car Audio Systems --- ## 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.hk/products/178412001-rca-stereo-2-channel-ground-loop-isolator-signal-noise-filter](https://www.desertcart.hk/products/178412001-rca-stereo-2-channel-ground-loop-isolator-signal-noise-filter) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-09-10*