Good advice, Taike. I will add though that I think more power than needed will in the long run give you a cleaner sound. Case in point: A portable CD player with pretty good speakers and a power wattage of 12W can sound OK in a small room at a medium volume. Take that same CD player and put 150W in it and play it at the same volume - no louder and you will hear quite a difference in quality of sound. Keep in mind, the 12W sounded OK but having more than enough power with 150W makes a cleaner sound.

Scott