I have a question about cabs that has been bothering me for wile now. I have seen a lot of threads about using a PA cab as a bass cab. Usually the thread is started by a younger player with limited funds and has found a good deal on a used PA cab with 1 or 2 15's. The usual reply's are DONT USE IT!! It will sound like crap!!! But, I also see a lot of people that say they don't need a amp or cab. Just run through the PA with a DI box. What am I missing here? If a PA cab sounds bad with a bass head why will it sound good using a DI and relying on FOH and a little 210 monitor???