Ground Loop Noise Isolator

Brilliant piece of kit. I had a terrible whistle while feeding sound from a video on OBS throught the phono out into an external USB card and onto a second machine running a radio playout system i.e. broadcasting video sound on radio. Soon as I put the Smof between the laptop and the USB external sound card - bingo no more whistle! This had bugged me for weeks.

I had to export audio from pc via 3.5mm audio jack. Interference was awful, tried high quality shielded cable, still bad. Read up on Ground Loop isolator. Bought this branded device, No Interference at all now, recording is crystal clear. Highly recommended.

Long story short I ordered this to hopefully isolate the ground buzzing from the my psvita to my pc. The interference before this isolator was unbearable and loud to a ridiculous degree. With this isolator it’s still there but noticeably quieter, as if someone cut of about 60-70% of it.

At first I was very sceptical about purchasing this, but I needed to buy it as my PC had a static sound coming through (I have my Xbox/PS5 audio connected through the Noise Isolator) and it got rid of it altogether! Very easy to use, the size of it is very ideal as it does not get in the way. Definitely value for money and the quality of it is superb!

The quality feels good and is in a small form factor , it works brilliantly for removing the Ground loop and EMI noise between my pc and Mixer , however the reason for dropping 2 stars is because of the audio quality , especially the Bass which distorts heavily between 20-70hz and it also starts to soft clip my mixer channels , this ONLY happens if I have my windows volume above 70% but I’m fussy and like to have windows volume high to begin with. So , if you are looking for a ground loop isolator for a car stereo/home theatre or anything that isn’t line level signal , it would be great BUT for PA equipment I unfortunately cannot recommend it , but it does remove the ground loop , hisses , Hum , Digital Hash noises , so as an emergency fix at a gig/venue it will do just fine. Overall: Fixes ground loops and EMI - 10/10 Effects sound quality - 4.5/10 Quality feel - 8/10 Size convenience - 9/10 Value for money - 9.5/10 Easy to use - 10/10

This actually made my worse! I have a pair of Bose Companion speakers plugged into my PC, and when the PC is off, my speakers buzz / hum. I assumed this was ground loop noise, but when I put this device in-between my pc and speakers, the noise got worse and louder.

We do not have bluetooth on our car radios and when we go on long journeys we have to charge the phone we are using as a Sat-Nav while we are travelling, we us the AUX port on the radio to listen to the instructions witch is fine all the time you are not charging the phone as well, because as soon as you do we get lots of hissing, cracking & humming which is caused because the radio & the Phone are being charged by the the same source. using this Amazing Little Gadget stops all that noise but does not seem to cut out the volume at all which is brilliant I can even listen to my music and the Sat-Nav at the same time now Very pleased with our purchase.

Oiiii! I'm sceptical by nature. I read reviews but never fully believe them. I had to write this one because i am honestly blown away how good this lil thing is!! Had a loud hissing sound from one of my Rocket powered speakers when connected to my TV. I thought it was the quality of the cables i used. I bought x2 different RCA cables, tried XLR to RCA. Blamed my Tv. Came across this, and thought i don't mind wasting £8 for another nonsense thing that won't work. I put this thing in and SILENCE!! I was very very surprised. A very happy man!!

Redujo el zumbido completamente

Perfecto, funciona sin problemas.

Problema solucionado ✅️, tenía el típico zumbido en los altavoces, el sistema era un radio y un míni amplificador de 2+1,la verdad que no confiaba mucho en el filtro pero me sorprendió mucho, ahora el sonido está muy bueno y limpio de parásitos, genial recomiendo mucho,quiero añadir también una cosa la calidad del cable rca es muy importante los típicos cables chinos rca te van a dar mucho dolor de cabeza, los mejores son los que vienes con las puntas bañadas en oro y empantallados (bien aislados)

ممتاز جدا

Works as advertised. Completely eliminated the white/ground loop static noise coming from audio out of a fairly cheap ($20) mixer :) From what I could tell, I can't detect any static noise anymore.