I've been browsing the forum in search for how to's on converting a combo into a cab. So far i've read mixed things and it's not computing well with my brain. Along with my small marshall combo (MB15), i have this carlsbro hornet 45 bass combo which i borrowed from a friend (he's a guitarist), It's pretty old and according to him, it's been sitting in a closet before he acquired it. I used it a couple times, and the volume knob popped while boosting the volume (Only when you started at zero and gradually boosted) and the mid eq knob grinches dialling it. I was going to get it fixed but i figure i might as well use it as a cab. I have a pretty basic knowledge with electronics in amps, but what must i do to completely eliminate the combo aspect and just use the speaker along with the housing as a 1x15 cab? Thanks.