Review on 🔇 Premium Smof Ground Loop Noise Isolator | Eliminate Buzzing Noise for Car Audio/Home Stereo System | Includes 3.5mm Audio Cable | Sleek Black Design by Erik Peterson

Fixed good sound and did nothing to fix the slight hissing noticeable when standing next to the speaker when nothing is playing. I tried using this on separate amplified rear speakers built in between an SVS SoundPath Bluetooth receiver and my rear amp. And yes, there is no sound from the amp when the RCA inputs are disabled. So it's coming from EMI or the Bluetooth receiver itself. Try using multiple cables, some better than others, and Mix 31 ferrite chokes in various configurations. They helped. This gadget smof damaged.