BESIGN Ground Loop Noise Isolator for Car Audio/Home Stereo System with 3.5mm Audio Cable

I bought this noise loop isolator to fix the static/humming sound in my headset, and it actually worked right away. Before using it, I had constant static and buzzing, especially when connected to my PC. As soon as I plugged this in, the noise was gone. Audio sounds clean now with no interference. Super easy to set up — just plug it in and it works. No extra settings or software needed. Build quality feels solid for the price, and it’s small enough to not get in the way. If you’re dealing with annoying static or ground loop noise, this is definitely worth it. Fixed my problem instantly.

This thing does exactly what it says it does. The fat little section has an inductor that creates the magnetic field that makes sure when current (sound in this case) flows through it, it is normalized and doesn't have any potential difference (which causes the hum we all hate). It's cheap and works on the 3.5MM input that I plugged it into and no matter how much power I throw at it now, there is no more hum. A good buy and I recommend. Pro-tip: Where do I put this thing in the sequence? The age old question of before or after that amp??? Well, conventional wisdom usually says add this inline as close to the amp as possible between the head (stereo) and amp. In other words, put this on the input side of the amp. Stereo --> Isolator --> Amp --> Speakers. This works in the vast majority of cases. There are some instances where there might be components after the amp besides the speakers, perhaps some kind of Bluetooth adapter, or game console, or something. This situation is more rare but in that case you'd put an isolator after the amp (out put side) but as close to the speakers as possible so Stereo --> Amp --> Component X ---> Isolator --> Speakers. There is also a third scenario where you put an isolator before the amp AND after the amp but before the speakers because you are getting two kinds of issues like potential current differences from a bad ground on the stereo feeding into the amp (corrected with the input side isolator) and then a shielding problem on the way to the speakers or another component that is leaking on to the line with a bad ground or the like (corrected with the output side isolator closest to the speakers). Why not just add one single isolator as close to the speakers as possible to correct it all? I'm glad you asked. This is because unless you get super high quality and usually powered isolators, you can't expect miracles and the potential difference might get so high that one isolator just isn't enough to correct it all so you correct it one step at a time after each component that is causing an issue. Bottom-line: One isolator on the input side of the amp or right before the speakers is usually enough and this thing works great for that.

Easy plug-and-play, and it does an excellent job of removing noise interference. Volume does decrease a little, but it's an expected trade-off for no unwanted humming

I paid full price; I am not a professional reviewer or paid by Amazon or the manufacturer. I have a speaker/subwoofer PC sound system made by Phillips. It has 2 speakers & a woofer, fed by a 3.5mm input jack. I had no noise until I added a splitter so I could have 2 laptops share the same speaker system. This is when the noise, which was hum & other random noise that was very apparent through the speakers. Even at low volumes, you could hear the noise, I might make a video to show how bad it was.. In the past I purchased a similar device to get rid of background noise, I think it was related to a USB powered speaker I used in the past. Well, the other unit did not work, and the noise persisted. I am pleased to report that this model noise defeating device worked great. Once I plugged it in, the noise is 100% gone. Not reduced, but back to the way it was before I added the splitter. I am not sure why using a Y cable between 2 laptops would create this situation (the noise), but this device did what I intended it to do. Just my experience, I am sure others will have different results. I am happy and I would buy this model again if needed. EDIT: 1 month update: Still working GREAT! Like another reviewer, null/Toddi, said: "Noise from GPU and mouse movements, and background noise from the laptop especially full screen". That is exactly what I was hearing BEFORE I installed this device. I like it so much I bought a spare just in case. It eally kills the PC noise that comes from a desktop of laptop. I actually tried the USB powered speakers from before, and without the device the USB powered speakers pickup USB noise. When I installed this with the USB speakers, it once again killed the noise. Whatever "magic" is inside this unit, it really works. I was going to try a isolator power plug device and ferrite loops, but I am glad I tried this first. I think someone in the questions said that they tried the ferrite cores and ISO power to no avail. I would have wasted a lot more money if I went that route. I would suggest anyone with noise try this FIRST. The price more than justifies an attempt at letting this device get rid of your noise. As for killing low end, I do use Spotify to listen to 80's rock and jazz, and I have not heard any low end problems. I do have a woofer and 2 speakers/drivers in my Phillip[s PC sound system.

Great ground loop for my car. Got rid of the alternator windup noise from my car.

It works. So I'm using this between headphones and an old amp. The amp generates a fair amount of ac hum that was becoming annoying. This little device has cut the hum way down and even helped with the popping I get when the hvac kicks on and off. But unfortunately it also lowers the overall volume, so I have to increase my source volume. It's not perfect, but does the job well enough to keep around. Overall I'm satisfied with it.

Very effective for my car made my speakers sound amazing I'm autally stunned how good this thing is.

Ich habe dieses Gerät erworben, um eine deutliche Brummschleife zu beseitigen, die in meinem Wohnmobil durch den Wechselrichter verursacht wurde. Die Audioquelle ist mein Fernseher, dessen Ton ich über das Radio ausgeben lasse. Solange der Wechselrichter aktiv war, war das Brummen ausgesprochen störend und machte den Musikgenuss unmöglich. Nach dem Einschleifen dieses kleinen Geräts über die 3,5-mm-Klinkenverbindung wurde das Brummen vollständig eliminiert. Der Ton ist seither glasklar – das Ergebnis hat mich sofort überzeugt. Zur Langlebigkeit kann ich zum jetzigen Zeitpunkt noch keine Aussage treffen, da ich das Gerät erst kürzlich in Betrieb genommen habe. Der erste Eindruck ist jedoch durchweg positiv, weshalb ich derzeit 5 Sterne vergebe.

Este pequeño y barato dispositivo solucionó un problema de ruido bien gacho que tenia al tratar de meter una linea de audio a la computadora, ya que esta hacia "reaccion" con la tarjeta capturadora debido a la configuracion que tengo. En fin, se escuchaba un ruido muy fuerte y molesto, no solo eco o un zumbido leve por lo que tenia mis dudas pero por el precio decidi arriesgarme (al ser de importacion es mas relajo la devolucion) y resolvio mi problema al 100% eliminando el ruido por completo. Es pequeño y viene bien empacado, se ve y se siente de calidad a pesar del precio. Lo recomiendo sin duda si tienes un problema similar.

Bastante mejor de lo esperado, en mi caso se ha eliminado el zumbido por completo y no ha perdido volumen la música, lo recomiendo sin duda

Werkt uitstekend inbde auto. De ground loop ruis verdween als sneeuw in de zon. Stond versteld van de kwaliteit. Echte aanrader voor diegenen denken dat de ruis door de ground loop komt.