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3.5mm AUX Audio Noise Isolator Hum Eliminator
3.5mm Portable Design Noise Isolator
WisWinDa 3.5mm groud loop noise isolator is a portable design and “plug&play” direct box device.
The sound source and the input terminal of the isolator form a loop separately, and the output terminal of the isolator and the load also form a loop. There is no physical electrical connection between the front and rear audio equipment, thereby ensuring electrical isolation and achieving the following purpose:
1. Purify the audio signal transmission, utilising the unbalanced signal transmission mode, which could be sure that the signal will not have interference noise caused by the length of the cable;
2. Eliminate the interference noise caused by out-of-phase power supply;
3. Eliminate the interference noise generated by the ground potential difference;
4. Unplugging and plugging signal cables in accidents or emergencies will not cause sparks due to voltage differences, which protects the safety of the front and rear equipment; the power line is divided into A, B, C three-phase and the neutral line L. The general equipment is a single-phase power supply with a working voltage of 110-240V, using L, N, G (safety ground) three-wire safety sockets. In actual working situation, the distance between the sound source and the power amplifier and the simultaneous interpretation host is very far in many cases, and there will be different power supply situations: cross-phase lines, and different safety grounds (G).
Suitable for almost all large-scale outdoor performances, lightning protection, sound engineering, conferences and series of audio equipment systems such as entertainment venues and exhibition halls are protection and noise reduction equipment connected by audio and video systems.
John Long
July 23, 2025
This device works by using a pair of small transformers, one for each channel that magnetically couple and isolate the inputs to the outputs. I got this one for connecting multiple computers to a single sound system mixer that was having a hum problem. It works just right in my case.
AllenO
June 19, 2025
I previously bought another product but returned it due to the poor sound quality. I read reviews for this product and they said it would both eliminate the buzzing from my car audio line and produce higher quality music with deep base sounds but unfortunately I got the same low tinny sound I got from the prior product. Im returning this asap.
Jess S.
June 19, 2025
I can finally charge my phone while it's hooked to my cars aux in without engine noise! What a dream come true!
Stonizona
May 26, 2025
I used this in my truck to try to get rid of the annoying high pitch hum that my car audio system makes smh. I installed the hum eliminator between my phone and my aux splitter that goes on to carry audio to two different players. When I plugged this piece in the hum/noise got louder and unbearable and I immediately had to unplug. I tried again with the same result after checking all my other connections. It's possible I'm misunderstanding something or using this product incorrectly but when using it to the best of my understanding the interference and noise I was getting only increased when I had this part installed. Maybe the manufacturer will be able to shed more light on the situation for me. I'll email them...
Matt Bonnett
March 14, 2025
I have been using this in my car because when I'm charging my phone and using the AUX jack I kept getting an annoying feedback loop that was just a constant drone that went up and down as I sped up or slowed down. I saw this and thought I would give it a shot - plugged it in......... The Sweet Sounds of Silence, followed by clean audio!!!I thought this was so nice I would give it a try in a couple other environments. I use a laptop to fire tracks into sound systems when I'm traveling and leading worship and always have to deal with a ground loop when I use my laptop and plug it in - so many times I just run off of battery. Brought this with me the last time I led and it solved the ground loop issue.It's a simple little tool that just works! If you have similar issues, give it a try - it worked wonders for me!
Blynn
February 17, 2025
It's doing what it's supposed to! Always had a buzz/hum through the aux input. This cleared up most of all of it, to my ears anyway. My only complaint, is that the cables could be a 'bit' longer, so that maybe I could hide it away somewhere without having to use yet another cable connected in line. I use an Android auto screen that is mounted to my windshield and goes to the aux plug on the face of factory radio. So unless I put an 1/8" audio cable to gain more length, this hangs right from the screen, and is in plain sight. It can be fixed, and won't be a problem for everyone, so I still feel it's 5 star worthy, and for the cost, would have been worth doing a long time ago (instead of just accepting crappy quality music!)
Laura C
January 5, 2025
This isolator is decent enough to get rid of most unwanted feedback, however the isolator reduces some of the output volume noticably. Not only that some high pitched noise still get through.
E.C.
December 7, 2024
This is an excellent isolation transformer for stereo 3.5mm systems. Use it inline with your devices and stereos and it elimiates noise and hum on your system. Every tech or dj should have at least once of these.
Harpreet G.
November 20, 2024
Actually worked as described, wish it was small size and or longer wires to hide it but overall great product! Also could have removable wires. Bass nice clear tho!
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