GLI-200 Hum and Buzz Kleaner 600 Ohm RCA in/Out Ground Loop Isolator

So I built myself a new PC recently for the first time in nearly 10 years. Sound Cards seem to have gone the way of the buffalo so I was looking for a solution for setting up my KRK Rokit 5 Studio Monitors. I spent more than I wanted to on a Mayflower Electronics DAC/AMP and had some issues with it straight from the box. I sent it back to them, and in the meantime connected them straight to my onboard PC audio. I instantly had terrible hissing and whining coming from my speakers--no matter what cables I used. I've had this issue before, mostly with car audio, and have in fact tried a few ground loop isolators before with little success. I took a chance on this with very little faith it would do anything.Well, wouldn't you know this took all my noise away! I was really surprised at how well this worked. One of the few times I went against my intuition and was proved wrong. A great product!

TLTR: It worked like a charm in my case.Professional here. Had a massive hum problem on a high end system. Since this might help some of you I'll try to quickly describe the system. It was a high end stereo system incorporated into a home theater system. When listening to music the stereo system was using an integrated stereo amp with 2 digital sources and one analog source, no problems there. When the stereo system was switched to watch movies or TV, HT bypass was engaged on the integrated stereo amp and a surround sound receiver would handle all the audio and video processing. Important note, the surround sound receiver was connected to the integrated stereo amp via RCA connectors coming from left and right Pre Out outputs. The problem was I had a massive hum coming from projector's HDMI cable (8K certified optical HDMI cable). Couldn't fix it no matter what. Decided to give this thing a try and all the hum was gone just like that. The system is silent now. Would not hesitate to buy again.

Soy un aufiofilo muy exigente. Hice mi propio subwoofer para mi home theater con equipo de car audio. El equipo es de muy alta calidad con un diseño propio, sin embargo el amplificador Alpine X-a90 debido a su calidad que es muy alta, es muy sensible al ruido externo de tierra y busque todas las posibles soluciones para reducir un pequeño hum que tenía el sistema. Hice de todo pero la solución perfecta fue este dispositivo de Earthquake GLI-200. EN POCAS PALABRAS ES SIMPLEMENTE SORORENDENTE. Pues he logrado eliminar al 99.99% el hum y es prácticamente imperceptible y por lo tanto recomiendo ampliamente este dispositivo. No hagan caso de las opiniones negativas. Ya que si el hum persiste en sus sistemas es debido a algún otro problema en su instalación o calidad de componentes. Este dispositivo es maravilloso. Tengo más de 20 equipos entre AV receiver, amplificadores, entradas como tornamesa, CD, bluray, Xbox, láser disc, Panamax, Furman, ventiladores, etc interconectsdos todos y es prácticamente 100% silencioso. Recuerden que la calidad de un sistema lo determina su dispositivo o elemento de menor calidad. Este equipo es calidad aufiofilo 100% recomendable. Solo comento que bajo un poco el volumen de la señal de entrada pero ajuste del 40% al 50% y el. Sonido es perfecto.

I actually can't believe how bad this unit is. It generates buzz and hum beyond belief !

Not able to resolve the hum sound and getting louder after installing. Really disappointed.