![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjmuMCFvuSKAeH6vVx3LW9W4fuc4Xdse_AseQ0jWOc90DFwnwoW8Gng-DunPQWPK7AK0NwwzJuNsRwspYKpWlumscVYlcG01R0ljIYL4ojP06EyTvFzPsBx7bK-gvVnls_VsLou/s400/knockout.jpg)
This Knockout pedal is pretty good. It allows me to add more or less top or bottom to my guitar tone.
I'm surprised the red light always comes on when I plug into the input. Must be some residual power within the unit when the power isn't plugged in.