--- product_id: 2308004 title: "Blue Jeans Cable Audio Isolation Transformer/Ground Loop Hum Eliminator for Subwoofer or Full-Range Audio" brand: "blue jeans cable" price: "395 zł" currency: PLN in_stock: true reviews_count: 8 category: "Blue Jeans Cable" url: https://www.desertcart.pl/products/2308004-blue-jeans-cable-audio-isolation-transformer-ground-loop-hum-eliminator store_origin: PL region: Poland --- # No signal quality loss Zero hum interference Hand-assembled in Seattle Blue Jeans Cable Audio Isolation Transformer/Ground Loop Hum Eliminator for Subwoofer or Full-Range Audio **Brand:** blue jeans cable **Price:** 395 zł **Availability:** ✅ In Stock ## Summary > 🔊 Silence the hum, amplify your vibe. ## Quick Answers - **What is this?** Blue Jeans Cable Audio Isolation Transformer/Ground Loop Hum Eliminator for Subwoofer or Full-Range Audio by blue jeans cable - **How much does it cost?** 395 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/2308004-blue-jeans-cable-audio-isolation-transformer-ground-loop-hum-eliminator) ## Best For - blue jeans cable enthusiasts ## Why This Product - Trusted blue jeans cable brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Crafted in the USA:** Proudly assembled in Seattle for trusted quality and reliability - • **Risk-Free Purchase:** Includes hassle-free return shipping label for peace of mind - • **Expert Guidance Included:** Comes with a detailed instruction sheet to diagnose and fix hum issues - • **Hum-Free Audio Experience:** Eliminates ground loop hums for crystal-clear sound - • **Audiophile-Grade Signal Integrity:** Preserves 100% of your audio quality with zero degradation ## Overview The Blue Jeans Cable Audio Isolation Transformer (Model AWT1) is a premium ground loop hum eliminator designed for subwoofers and full-range audio systems. It guarantees zero perceptible signal loss while eradicating annoying hums caused by ground loops. Hand-assembled in Seattle, it includes an informative instruction sheet and a no-questions-asked return policy with prepaid shipping, making it a risk-free upgrade for any professional or audiophile seeking pristine sound clarity. ## Description Buy Blue Jeans Cable Audio Isolation Transformer/Ground Loop Hum Eliminator for Subwoofer or Full-Range Audio: Isolation Transformers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: PERFECTLY fixed my issue, with 0 perceptible signal quality loss! - I'm always skeptical of these kinds of products, and this one wasn't cheap, but I didn't want to buy one that was meant for a stereo signal and awkwardly only use half of the connections, and I certainly didn't want to buy a super cheap one that would just degrade the signal, so I found this, saw the reviews, saw the FANTASTIC return policy (if it doesn't work, you just return it, no questions asked... it COMES with a return shipping label in the package!), and bought it. When it arrived I recreated the hum conditions, nervously plugged it inline with my sub signal, and BOOM! No more hum! And there's absolutely 0 perceptible signal quality loss! This product PERFECTLY fixed my issue! Also, again, the return policy is fantastic and the included information sheet was incredibly informative! I don't write reviews often, but I just had to share how fantastic this whole product experience has been! Yay! No more hum when my CPU or GPU is under load! Woot! Review: SWT1 solves vexing hums caused by ground loops - I purchased a new powered subwoofer recently and hooked it to my existing receiver. When the receiver was powered on without audio content, and the subwoofer was in standby mode (no detectable audio content), the subwoofer was silent. And everything functioned well when playing music. However, when the receiver was turned off, and the subwoofer was in standby mode, it emitted an annoying hum. Various rearrangements of the power and audio cables failed to get rid of the hum. I also tried some alternative cables with the same result. When I removed the audio cable from the subwoofer, the hum went away. Various sources suggested this behavior was a symptom of a ground loop. I ordered a Blue Jeans Cable SWT1 which was delivered very quickly. I simply inserted it between the subwoofer and the receiver using quality audio cables with RCA-type connectors and the hum disappeared. I am not an audiophile, but I could not detect any adverse impact on the music played through the subwoofer. This product delivers when it comes to eliminating hum caused by ground loops. The device has the appearance of quality construction. The packaging also includes useful background information about various causes of hum, acknowledging that the SWT1 is designed specifically to eliminate hums from ground loops; but it will not necessarily eliminate hums from other sources. The packaging indicates the seller will take back the product and give you a refund if it does not solve your problem, so this eliminates risks to the buyer. Return labels are included and no return authorization is required. In terms of solving my problem, and the policy regarding returns, I give this product five stars. ## Features - Comes with instruction sheet to help guide you to the solution to an audio hum problem -- even if it's not a ground loop - New improved design - Assembled in our shop in Seattle, Washington ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00GG1PK5W | | Antenna Location | home theater | | Audio Driver Type | Dynamic Driver | | Audio Output Mode | Mono | | Best Sellers Rank | #190,871 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #52 in Isolation Transformers | | Brand | Blue Jeans Cable | | Built-In Media | Instruction sheet for hum diagnosis, Isolation Transformer | | Color | Black | | Compatible Devices | Television, Projector, Laptop | | Compatible with Vehicle Type | Car | | Connectivity Protocol | RCA Analog | | Connectivity Technology | RCA, XLR | | Control Method | Remote | | Controller Type | Corded Electric | | Customer Package Type | Box | | Customer Reviews | 4.3 out of 5 stars 242 Reviews | | Is Waterproof | FALSE | | MP3 player | No | | Manufacturer | Blue Jeans Cable | | Model Name | AWT1 | | Model Number | AWT1 | | Mounting Type | ground mount | | Number Of Circuits | 1 | | Number of Items | 1 | | Number of Power Levels | 1 | | Power Source | Not Powered | | Speaker Type | Powered | | Subwoofer Connectivity Technology | Wired | | UPC | 811887013249 | | Unit Count | 1.0 Count | | Warranty Type | Lifetime | | Water Resistance Level | Not Water Resistant | | Wireless Technology | No Wireless Communication Technology | ## Product Details - **Brand:** Blue Jeans Cable - **Connectivity Technology:** RCA, XLR - **Audio Output Mode:** Mono - **Mounting Type:** ground mount - **Model Name:** AWT1 ## Images ![Blue Jeans Cable Audio Isolation Transformer/Ground Loop Hum Eliminator for Subwoofer or Full-Range Audio - Image 1](https://m.media-amazon.com/images/I/51liun9hLSL.jpg) ## Questions & Answers **Q: My subwoofer seems to kick on and produce a low hum when I turn on the coffee pot or microwave even when on standby. Will this product eliminate it?** A: It worth a shot since this product should isolate your sub from any electrical interference. **Q: Wow I can't believe this is made in USA!!! My question is what else makes it different from other units for $10? I see no gold plate, etc. Thanks!** A: I haven't ever seen one of the $10 units you mention so can't say specifically how it may differ from another unit, but our supplier who manufactures these in California (Energy Transformation Systems) is known for high-quality audio and video transformers and the frequency response on this is nice and level. We don't use gold plate on the jacks as ETS doesn't generally use gold and there really is not, contrary to common perception, a performance advantage in it. Plating on connectors is generally chosen for durability (important) and conductivity (less important) -- you want it to endure multiple insertions and removals. Nickel plating, as is used here, is very hard and durable. The "advantage" of gold, so far as it goes, is that gold is more conductive -- but the plating thickness on a connector is millionths of an inch, and so the difference in contact resistance between a higher-conductivity metal and a lower-conductivity metal is minuscule and meaningless, especially in a high-impedance circuit like line-level audio where considerations like capacitance and shield effectiveness are much more important than resistance. KurtBlue Jeans Cable **Q: I have a fusion (marine stereo) and fusion sub-woofer. connect via rca cables left and right. where/how do i install this? do i for each rca?** A: Yes, unfortunately, you probably need to do two, one for each RCA connection. **Q: What is the frequency response for this. Will it pass audio without distortion at 1hz? Most are 20hz and I need lower.** A: Ask BJ or Calrad about its bandwidth; I am sure it does not highpass at 20Hz or close to it, and probably much much lower than that is its rolloff. Its response at 1Hz, who knows? (You do not want or need that in any case.) It will not pass dc, by definition, and for sure you would not want it to. (Can't tell if you understand VLF and perception thereof correctly.) ## Customer Reviews ### ⭐⭐⭐⭐⭐ PERFECTLY fixed my issue, with 0 perceptible signal quality loss! *by T***Z on January 6, 2024* I'm always skeptical of these kinds of products, and this one wasn't cheap, but I didn't want to buy one that was meant for a stereo signal and awkwardly only use half of the connections, and I certainly didn't want to buy a super cheap one that would just degrade the signal, so I found this, saw the reviews, saw the FANTASTIC return policy (if it doesn't work, you just return it, no questions asked... it COMES with a return shipping label in the package!), and bought it. When it arrived I recreated the hum conditions, nervously plugged it inline with my sub signal, and BOOM! No more hum! And there's absolutely 0 perceptible signal quality loss! This product PERFECTLY fixed my issue! Also, again, the return policy is fantastic and the included information sheet was incredibly informative! I don't write reviews often, but I just had to share how fantastic this whole product experience has been! Yay! No more hum when my CPU or GPU is under load! Woot! ### ⭐⭐⭐⭐⭐ SWT1 solves vexing hums caused by ground loops *by W***. on February 19, 2018* I purchased a new powered subwoofer recently and hooked it to my existing receiver. When the receiver was powered on without audio content, and the subwoofer was in standby mode (no detectable audio content), the subwoofer was silent. And everything functioned well when playing music. However, when the receiver was turned off, and the subwoofer was in standby mode, it emitted an annoying hum. Various rearrangements of the power and audio cables failed to get rid of the hum. I also tried some alternative cables with the same result. When I removed the audio cable from the subwoofer, the hum went away. Various sources suggested this behavior was a symptom of a ground loop. I ordered a Blue Jeans Cable SWT1 which was delivered very quickly. I simply inserted it between the subwoofer and the receiver using quality audio cables with RCA-type connectors and the hum disappeared. I am not an audiophile, but I could not detect any adverse impact on the music played through the subwoofer. This product delivers when it comes to eliminating hum caused by ground loops. The device has the appearance of quality construction. The packaging also includes useful background information about various causes of hum, acknowledging that the SWT1 is designed specifically to eliminate hums from ground loops; but it will not necessarily eliminate hums from other sources. The packaging indicates the seller will take back the product and give you a refund if it does not solve your problem, so this eliminates risks to the buyer. Return labels are included and no return authorization is required. In terms of solving my problem, and the policy regarding returns, I give this product five stars. ### ⭐⭐⭐⭐⭐ Took out my hum noise *by A***N on December 14, 2020* I have a Dayton SPA500 amp that I've head for about 3 years. Recently I discovered that I had a C69 on PCB, a capacitor that was going bad. I replaced this with a new capacitor. This did help alleviate the humming from being all over the place. Then during my testing, I found out the hum went away on two occasions. 1) when the cable is unplugged from the LFE Direct port on the plate amp. 2) when the amp went idle. When the plate amp was active, the faint green would be bright green. Then I could turn the gain up and hear the 60 HZ cycle hum on the subwoofer speaker. It was also very apparent in some computer games. like Assassin's Creed III Remastered or Witcher 3. It was a constant hum that would not go away. I tried to turn up my subwoofer volume on the receiver and turn down the gain but it was a bandaid, not a fix. This device along with Blue Jeans LC-1 cable, This SWT1 module, MediaBridge 2FT RCA cable eliminated my hum completely. I even turned up my gain but I could not detect a thing. If your condition sounds like mine, I recommend this module. Best part is, I can't detect a different in the way it performs or sounds when bass is playing. --- ## 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/2308004-blue-jeans-cable-audio-isolation-transformer-ground-loop-hum-eliminator](https://www.desertcart.pl/products/2308004-blue-jeans-cable-audio-isolation-transformer-ground-loop-hum-eliminator) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-24*