I use it between my pedalboard and my amp's effects loop. No noise, no loss of treble, solid workmanship. I gave it 4 instead of 5 because it does have a tendency to detach from the plug, so if I rearrange my pedalboard, I have to make sure it's still firmly seated in the output jacks of my amp. It's a rather rigid cable, so not suited if you need it to bend too much around corners.