Review on 🔌 iFi iDefender Plus USB Audio Ground Loop Eliminator (Type A to A) by Michael Persing

It works. It works legally. But first you need to properly diagnose the problem. I have a Yamaha Modx that I have connected the line outs and USB to so I can control my DAW and record through the line outs. Because the line outs go to standalone DI and ground is there and ground goes to keyboard and USB has its own ground. it creates a ground loop. USB also picks up noise from the computer's motherboard. IFI separates the ground, thus eliminating the noise. If you have a DAC or sound card that uses USB for power, you will need to purchase an additional 5V power supply to power it. Because ifi cuts the ground and only transfers data