De 2 rizas que comore una servía y la otra No . , por lo que tuve que pedir una tercera y luego devolver la no funcional

Struggled with buzz, hum and what sounded like line contact issues after getting new laptop for my PA. Tried everything, and I mean EVERYTHING else. I have been DJ'ing and hosting Karaoke for 37 years and this is the first time I had encountered ground loop issues, so it never occurred to me to ask the RIGHT question; I just kept trying to fix things I was familiar with. Finally did a search and just asked the internet what was wrong without telling it what I thought it was and finally got the right answer: Ground Loop Interference. 24 hours later, I have the InstallGear Ground Loop Isolator Amp Noise Filter connected and everything sounds clear and perfect. I wasted months because I was too stupid to ask for directions and got lost and frustrated for my troubles.

It doesn't cut the noise when the audio is Playing. I connected it even serially and checked but nothing works. It just cuts the noise when nothing is playing on the car stereo.

It doesn't work. I won't recommend it.

I had interference in my boat when i was using the trim switch so I bought this device. After I ‘ve installed it the interference was worst and I had no more bass in my 6x9. Took it off and trowed it in the garbage….