I had decided not to install it at first because I thought it was just an extension of the bass boost knob. Everyone has told me to leave the bass boost at 0 so I said well then I don't need the knob.
I decided to plug it in just to see what it did, when I plugged it in and it was at 0 it completely killed the bass, then I cranked it up and it went back to normal volume. It would seem that when the knob is at like 90-100% my bass is as loud as it would be when the knob isn't plugged in.
Like I would unplug it, listen, plug it in and turn it up until it sounded the same as before.
So is it just a knob that lets me turn down the bass when the song has too much bass?