I just pick up a used SVT-Pro 4 Ampeg head from a store and a new BXT410 Ampeg cab. The band is going on tour (tour=6-8 weeks followed my 9 months out of the year)so i figured i needed more amp. Old amp is a working mans 15. Should i take them back and put the cash towards something more practical? PLZ HELP ME! P.S. plz see my band vehicle post in band managment if u can help.