im a drummer that is now playing bass. i want an eden rig but i cant afford it so im looking at a 4x10 Behringer 1000W BA 410 with a B3000T 300W Head. Are these good? Total is around $500 new for both. Do I need a Preamp or Power Amp or is the Head and Cab fine? Is this enough power for loud punk rock gigs if i put the cab on milk crates and use a 300W head? Opinions are greatly appreciated!