Hi, so i would like to buy a 2.1 setup speakers for my bedroom for the sole use of listening to music and for white noise. I am drawn towards bookshelf speakers because of their better quality however i will be using them a lot, and overnight as well playing white noise like rain or what ever to drown out other noises that would wake me up, and i dont know if that will affect our electricity bill that much or not. I am not too good with the calculation of how much electricity the speakers will consume but i assume that the bookshelf speakers will use up much more.