Customer Ratings & Reviews

bought this item to remove electrical hum loop between laptop and mixer console caused when HDMI cables also connected in for Karaoke setup. some loss of bass end requiring EQ compensation, but not an issue.

Two of these ground loop isolators were required to knock out engine noise in my Audi A3. They really do work.

Shop had ran my rcas right next to the power wire going to the back of my battery in the trunk and was getting a lot of noise that increased as I accelerated. Rerouted rcas away from the power wire and still had a tad bit of whining noise. Installed this and it removed the remaining noise!

This item works amazing, does what it’s supposed too

Does it's job. Note that it might not work for all grounding issues.

I purchased this isolator to eliminate a hum from an ac adapter used in my stereo system. Moving the adapter away from the equipment helped but didn’t eliminate it. The isolator helped but also didn’t eliminate the problem. Your application may have different results. I kept it because it did help.

Does exactly what is it's supposed with easy installation

Purchased this to reduce/remove noise from connecting turntable to soundbar. It still makes a small humming noise but not as bad

So far its work great noise is gone great product so easy to install ground the wires and plugged in rca jacks and done listen without that noises great job

So this ground loop has not disappoint me. When used right it can eliminate ground loop noise.

good product works great better if it came with instructions but google for instructions is easy enough

Worked perfectly for what I needed. Added speakers to a wakeboard tower and there was a ton of EMI without the isolator installed

Great product and price! This item was exactly what we needed and did the job well. Don't hesitate to make a purchase I'm sure you won't be disappointed.

For whatever reason connecting my amp directly to the head unit causes them to go into protect immediately. So I installed these and fixed the issue. They sound really good. Unfortunately one didn’t work and I had to replace it. Also they seem to have really poor isolation. Placing these anywhere near a power cable from the vehicle caused a terrible ringing in the tweeters. This happened with my heated seats, turn signals. Etc. I really had to find an isolated location for these.

i was having issues with feedback after installing an amp to the 4 interior speakers. this fixed it! noise was gone instantly.

Got this to eliminate a buzz coming from my head unit. It lessened the buzz to a point where I can’t even hear it. Did its job for me.

I had a terrible ground noise in my home amplifier and between grounding the amp and reciever together and using this device my problems are solved.

Installed an amp and new speakers in a 1963 car and had interference from the alternator. Plugged this in and it fixed it.

I would hear sound out of speakers whining pitch louder as the car accelerates from my Pioneer stereo and stock amp. This took it away

I bought and tested this Metra TruConnex TC-GLI Ground Loop Isolator and it works! No high pitch whine noise at all. I was expect a tiny bit at high speaker volume but none is present anymore. My guitar signal is fine from my Blackstar HT-1R practice combo amp (clean channel with my pedalboard effects) through my Focusrite Scarlett Solo 2nd Gen and gain levels good in Reaper software too. Now I can start having fun learning home recording without the annoying hardware issues. Best Buy and TruConnex TC-GLI Ground Loop Isolator saved the day!