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

I recently purchased the UGREEN USB Audio Adapter to solve an issue I was having with noise in my docked computer speakers setup for my MacBook Pro. This little device worked like a charm and completely eliminated the annoying static and interference that was plaguing my sound system. Instant Noise Reduction The main reason I bought this adapter was to address the persistent noise that I would hear through my speakers when my MacBook was docked. It didn’t matter what I was doing—whether listening to music or joining a Zoom call—the interference was always present. As soon as I connected the UGREEN adapter, the difference was immediate. The noise disappeared completely, leaving me with crisp, clean sound. Easy Setup and Plug-and-Play The setup couldn’t have been easier. It’s truly plug-and-play—just plug it into the USB port, connect the speakers or headphones, and you’re good to go. There were no drivers to install or any complicated setup process. Within seconds, the audio quality improved dramatically. This was a simple, effective solution to a frustrating problem. Compact and Convenient Design The adapter itself is small and sleek, which is great because it doesn’t add any bulk to my setup. It’s easy to toss in a bag if I need to move around, and its design feels durable. Despite its compact size, it packs a punch in terms of performance. Great for Multiple Devices While I mainly use it with my MacBook Pro, I’ve also tested the adapter on other devices, including a Windows laptop and a desktop, and it worked just as effectively. The versatility of this adapter is a bonus, as it can solve audio issues across various platforms. Affordable and Effective Solution Given its affordable price point, the UGREEN USB Audio Adapter is an excellent value for what it offers. If you’re dealing with audio issues related to interference or static in your speakers, this is a quick and reliable fix without breaking the bank. Final Thoughts Overall, I’m extremely pleased with this purchase. The UGREEN USB Audio Adapter solved my noise issue perfectly, and the sound quality has been significantly improved on my docked MacBook Pro setup. It’s a must-have for anyone experiencing similar problems with audio interference. Highly recommended!

My GTi is old - it's model year seems to have been the last one prior to the widespread introduction of usb ports as a standard piece of kit for new cars by VW. It has several buttons for satellite radio and a DVD-based navigation system. Bluetooth audio was moving from a rumor to reality but still a few years from being available as a feature. So no easy wireless audio existed for me in this car - only an aftermarked aux jack that I had been plugging into via Apple's Lightning to 3.5mm adapter. I tried using a Bluetooth dongle, which brought brief joy followed by the realization that it would need frequent charging, which invariably brought on the eerie, disembodied, hissing menace of the Audio Ground Loop. Efffff. BUT - I love my GTi; it's paid off, cheap to insure, and driving it still puts a smile on my face. Two weeks ago I did a bit of research on reliable isolation devices, got overwhelmed by the crushing weight of paid-for, AI-faked, ludicrously off-topic, and real reviews, and decided to just buy the most popular one on the big A. Thing works great. No degradation in quality (to my somewhat practiced ears), nor any decrease in volume. Just plugged my bluetooth receiver dongle into the cigarette lighter outlet/usb charger, connected this thing's built-in 3.5mm male cord to the dongle's output, then ran a short 3,5mm cord from this isolator to the aux jack. Voilà. Now that setup sits, out of eyesight, in the emergency-brake-lever area to the right of the driver. When I start the car, on comes the bluetooth. With this isolator in place, I have seamless, interference-free bluetooth audio from my iphone without ever having to plug the phone in to anything. Wonderful. Writing this review was harder than setting it all up.

Works great! I have several computers that are connecting to a Zoom Livetrak Mixboard and I have some extremely dirty power. I've added these to mic inputs, sound outputs, and Headphones and it eliminates all noise that my dirty ground has generated. Hands down One of the best Noise Isolators I've found for a Great Price.

I bought the Besign Ground Loop Isolator to fix a persistent hum when running audio from my computer into my Roland amp, and it completely solved the problem. The difference was instant — clean, noise-free sound with no buzz or interference. What really impressed me is how transparent it is. There’s no loss of tone, no noticeable change in volume — it just removes the noise. It’s plug-and-play, requires no power, and works perfectly between my computer’s output and the amp input. For the price, it’s easily one of the best little audio fixes I’ve ever bought. If you’re hearing that annoying hum in your setup, this thing is a no-brainer.

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

I tried a larger one for 1/4" jacks but it rendered the audio difficult to hear. This one worked well. There is some sound bleed through, 60 cycle hum but doesn't interfere with music listening. At the price it would be hard to beat.

Does exactly what I needed it to do! It gets rid of all the noise I was experiencing and it was so good I'm even considering buying a second one for another device so I don't have to keep swapping them around. One thing I will note is that you'll want to make sure you don't go above a certain volume threshold on the output device, otherwise your audio will get distorted. I've got it set to 50% on my PC. Mess around with it and see how it goes.

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.

Sinceramente non mi aspettavo la perfezione, avevo un fastidioso ronzio quando in camper collegavo una sound bar al TV alimentandola con la stessa fonte (batteria servizi). Tanto che ero costretto a separare le alimentazioni con un'alta batteria aggiuntiva, con tutti i problemi di ricarica che ne conseguono. Non sono esperto,ma ho capito che il problema era dovuto al loop di massa. Con l'inserimento in serie di questo piccolo componente nel cavo di collegamento audio tra TV e sound bar, il ronzio è SCOMPARSO non solo attenuato, ma proprio scomparso, come con la soluzione dell'alimentazione separata.

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.

I have a3.5 mm bluetooth adaptor for my pc and there was a hum and i tried many things to eliminate the hum but b i learnt it was due to ground loop and I bought this ground loop isolator and the hum has gone and audio is clear and i recommend Buying the product if you experience any annoying him in your 3.5 mm bluetooth adaptor.