Bumper Ground Loop Isolator Noise Remover

Wicked! ... top product for under a fiver ... and it works! ...Had some classic 'Mains hum' mixed in with some 'Digital static' (similar to the old modem noises) emminiating from my bunch of USB cables, which are connected to various mobile devices ... the devices are like a noise generating beacon and so found out that my Denon DJ MC2000 mixer was attracting this noise and amplifying it out throught the LINE output and into the PC ... a right pain in the a$$ ... so I took a chance and threw this on ... Boom! ... ALL of the noises have disappeared ... nothing but clean audio on the speaker outputs of the PC now ... quality bit of kit ... and being as this is a transformer, I can't see this breaking down in the distant future ...Recommended if you're doing Audio work of any kind wether on the PC/Car/Disco, etc ... fast delivery too ... thanks ...

Bought this to solve a ground loop hum issue with my new subwoofer for my home theatre system. After initially thinking it had worked I soon realised it hadn't. Also, my subwoofer has an auto power off when it doesn't detect a signal from the amp, but with this attached it wouldn't power down. I suspect the isolator sets up an opposite field to negate the ground loop hum, no electrician here so who knows really, but that means the sub thinks there is a signal coming in so won't turn off. Bottom line, save your money and don't bother. I found a perfect solution with the Audioquest Black Lab Subwoofer cable. It has an integrated ground wire built in that lets you ground the sub to the amp stopping the problem. This isolator may work for for DJ setups to PA systems but for home theatre systems it is a bust. I had read in other reviews this might be the case but thought for a few pounds for this it was worth a gamble... it wasn't. Try the Audioquest cable instead, worked perfectly for me.

So after doing some pretty weird modifications to my main computer I had serious ground noise problems compared to the mild ground hum that was almost comforting from my old Rotel. With this in line, near silence at full amplification.I haven't noticed any drop in audio quality either, this particular isolator is a big heavy thing compared to some, which at least makes it seem better somehow. Who knows, ground issues can be tantamount to witchcraft at times.Definitely cuts out the digital noise from computer equipment well though.

I know ground loop isolate should help remove ground loop problems. But sadly this one made everything worse!… and dulled the audio we could hear.

Does reduce background noise but sound quality suffers.

Just didnt work for me. Null difference on the rca ground noise interference...was worth a punt i guess and may work on other applications. (mine was car audio rca, static buzz)

This ground loop isolator sorted out a bizarre graphic activity interference with the studio monitors.I use a PC based studio with active monitors and an external audio interface which connects to the PC using firewire (for audio and power). The trouble is my audio interface doesn't support balanced outputs, and hence, any sort of noise or common mode interference in the chain can be a serious issue since it's not rejected.Every time there was any sort of graphic content activity on my PC (it could be as simple as scrolling down a page on Amazon), there was a short "hissy" noise coming out of the studio monitors. The noise was incredibly annoying though not very loud, and it was independent of the volume control. Certain graphic activity would prolong the disturbance and alter the frequency content (always somewhere in the 100s of Hz) to the point that I thought my graphics card was talking to me ;o)Computers are very noisy in general, so I found replacing the graphics card with a newer model that doesn't suffer from the so called "coil whine" (Google it), would be tackling the problem from a wrong angle. Since I can't have balanced connections, a ground loop isolator seemed like a good starting point to at least break any potential ground loop (at very low frequencies outside the audible range). This way, I thought, any interference from the PC would not propagate to my monitors as a result of ground voltage/impedance imbalance between the audio interface and monitors.This nice loop breaker, when connected in series with my monitors has eliminated the issue entirely and I couldn't be happier!

Cut out all the interference from laptop charger