Neoteck Ground Loop Noise Isolator, Noise Filter Eliminator with 3.5mm Jack Audio Cable for Car Audio System/Home Stero System - Black

One of my digital eurorack modules introduced a lot of noise into my whole system as well as a constant low level hum. Experimented for hours with rearranging modules, taking things out and putting things back in, PSUs etc. Anytime the offending module (Qu-bit Nebulae V2) was seated in the case the whole system's noise floor was raised by around 20 dbfs and hum was present on all outputs. After some research, I thought I'd give this isolator a go. What can I say, it fixed the problem immediately! The outputs of my modular have never sounded clearer and cleaner. From testing, the isolator does not introduce any noticeable negative changes to the sound. A quick test with an oscillator running through a mixer module to my DA converter measures at -12 dbfs without the isolator and -12dbfs with the isolator - the biggest difference being that with the isolator the signal sounds clear and all the background noise has disappeared! I don't usually write online reviews but thought that if this can help anyone else not spend hours, days and even weeks trying to troubleshoot noisy synth outputs then it's worth it. Only criticism (and it is minor) is that the included 3.5mm cable feels a little cheap compared to the braided 3.5mm cables I usually use. I replaced the included cable so it now fits with the rest of the braided UGREEN cables I use. Great isolator and very cheap quick solution to a problem I've been trying to troubleshoot and fix for weeks!

Ground Loop Noise Isolator Neoteck Audio Noise Filter Eliminator with 3.5mm Jack Audio Cable I've always had strange whizzing and humming sounds when the CPU is busy on every set of speakers I've tried ...I had even RMA'ed 2 motherboards and tried a different Asus model of motherboard plus tried new PSU's.. I had resigned myself to this just being a 'feature' of Asus motherboards ...not any more the sound is clear and interference free for the first time in years ...WOW I wish I'd bought one of these little ground loop isolators years ago. If you are having interference from your motherboard try one of these ... worked for me and I haven't noticed any of the sound distortion problems others have noticed. worked so well I just bought another for my other Asus Based PC...my MSI and Gigabyte mobo based PC's don't seem to have this problem.

installed this unit on the line in cable of a Local community radio stations live feed streaming computer and it removed a nasty hum that's plagued their live feed for years. cheap and cheerful and does what it's supposed to do, the station is overly happy. I reccomend buying a better 3.5mm cable to go along with it. the cable included is short

I have taken a few months to write the review as I was making sure that it continued to work. I bought this item to cure mains hum on a system that I use to play music. I used a desktop PC into a Beringher Mixer into a Carlsbro amp and all worked well. I changed the PC for a laptop and it introduced this horrendous mains hum. I tried many things to cure it without success. I fitted this item and the hum disappeared totally. I am so pleased with this.

I don't usually do the whole review thing but my need for it is quite common on the linking a Nintendo Switch to a PC monitor without built in speakers scene. If you want to set up your Switch to the HDMI output on a PC monitor and have a sound system, get an audio cable which splits into two male ends with 1 female end. Sound system jack goes into the split cable, one of the mail ends into your PC and the other male end into this Isolator, then the isolator cable into the headphone port on the Nintendo switch. Sound will then work perfectly for both. Excellent and quick solution to something which can be overly complicated (and priced!) by other products.

It reduced the noise on my headphones but did not eliminate it totally, I can still hear it very clearly, and only disappears entirely with high volume music

I don't often leave reviews, but this was fantastic. To get sound from my PS4 Pro to my PC, I had a 3.5mm cable going from my monitor to the line in on the PC, however was getting buzzing whilst in PC games regardless of if the PS4 Pro was on or not. Put this in the back of the monitor headphone jack and it worked instantly. Can't tell if there is a loss in quality on the PS4 and no more buzzing on the PC anymore, even when I have my headset AND the Line-In volume on max! Such a simple solution!

It doesn't work. Tip and ring of the jack port seems to be crosswired on either end .. have to bodge the jack to be partially plugged in so the correct parts make a circuit which is a total pain. Otherwise signal drops to nothing and noise floor / interference is about 80% louder than the audio signal. Of course doing so means only L or R audio. Poor or zero quality control. I have lost the box so can't return it and barely worth it for the price I'll just open it up and rewire it. But basically useless as is.