Hi! ive been playing bass for a few years now, always used a 160 watt combo. just joined a band and i need a bigger deeper sound. im planning on buying an amp and a cabinet. thats what i need right? if im not gonna be using a combo? so if i get a say 300 watt amp and a 2x15 cab then that will be cool yeh??? please help me, music shop people intimidate me. i would love to be a little educated before i go in there. thanks!