So i picked up a new rig yesterday, Japanese fender jaguar with ampeg b2-re with bse410hlf and a classic 15 for crazy cheap. The only problem is a gash in the bottom of the 15 cab... i can't really tell what it does to the sound as i havent had it out of the apt yet, and never heard it when it was new. Does this play a big role sonicly? maybe less punch? So I started wondering if i was going to go about repairing this, how do i even open it up?