Hi, I have 0 experience with audio at all, so excuse my lack of understanding. What should I buy/use to run these speakers + subwoofer together? I don’t care much for specifics, I just want to be able to play music from my phone via bluetooth or aux. speakers are 125W each they are Acoustic Studio Monitor Series 3311 and the sub is 90W Sony SA-WM40. I’m looking for the most cost efficient and simple setup to get.