I have an old Kustom II Bass combo that is 1x15 for the cab. The amp in it broke. I also have an Ampeg BA112 that works fine. If I get a head for the Kustom combo and power both it and the Ampeg up, would it sound bad? I know in car audio you get 2 different sized speakers going and they cancel each other out and it's bad. Also, the Kustom takes about 150-200w, I don't remember which. Would it be worth it to get an amp for it if the combo of combos mentioned above does NOT work? Or should I just look for a new cab as well? I don't need very much volume/power, just more than the Ampeg has now and enough to fill a small venue.