my suggestion is ...if ur really ona budget, geta huge ass bass amp. bass amp has low frequencies so it can tahan highs and lows. simple theory is ...bass amp can play guitar and bass.....guitar amp cannot play bass but can play guitar only. so means the bass amp is the most tahan lasak, its built to tahan slapping popping bass lines which will KOYAK the amp if ur amp is not good. so here u go, HUGE ASS bass amp =) its from my experience i used my bass amp 180 watts for bass guitar and keyboards too ..sometimes accoustics lol.