I got pioneer tsd691s speakers from Hall Road few days ago. They sound good but not like how i want them to be. The shopkeeper changed the amp(almani) and things have gone bad. I dont know what to look for when buying an amp for speakers. Is it RMS or watts ? The rating on the speakers goes like this RMS 80w max output 350w and impedence 4ohms. I want such an amp which is easier to tune and has long tuning range not the one with very tight sensitive tuning.