Ok, I'm using this for an unusual purpose. I run the cable from my bass into this switch. One output goes to my amp, the other output goes to my playstation for rocksmith 2014. In the game, the volume on the bass is just too low. You can't hear yourself play in the mix. So I run my instrument through a separate amp and I can hear it. There's other electronics that serve a similar purpose, but this is how I do it and it works. The sound is clean and that's what counts.