I searched for a thread that discusses this and couldnt find any. I am trying to work with my current cab because I am a frugal boy. My fifteen seems like it is getting more power than it can handle, especially when i hit that low E. I have my eq rolled back at the 40 and as volume goes back i have to roll off my 100! The speaker starts farting and there is tons of air blowing out the two bottom holes. What will drilling a couple more port holes above the speaker do for me. Could I push the speaker a little harder?