Quote:
Originally Posted by gieperson View Post
there is a sub signal IIRC that looks like a phone jack. is there a way to see if thats sending a signal to the amp?
An RJ13 is typically a remote control for bass boost. If there is something connected you will likely have a controller with a small knob installed somewhere to allow you to increase the bass. It is not a signal input. Do you have a photo you could post?