I bought this expression pedal for the use with my Soundblox Pro Bass Envelope Filter. A passive expression pedal with tip ring sleeve was needed and found with the EP-3. It is constructed really great. It appears you might even drive it over with the soul train, and it will work fine afterwards ;). The cable is fixed on the pedal, so if its broken, I think it is hard to exchange. But as I said, it is very well constructed, so there shouldn't be any problem. The knob at the side works fine to adjust the amount of "effect changing" you want to deliver with moving the pedal up and down. One of the best things I noticed is, that the way you go from minimum to maximum while stomping on the pedal is pretty long. So actually you have a more distinctive possibility to accentuate your town and a more delicate way to change your parameter with the pedal, because of the longer scale! Maybe thats why it is one of the most popular expression pedals ever made, as well for guitarists, bassists or keyboarders! The price is unbeatable as well!