How can you distinguish between amp and speakers when you listen to them? I mean like, how do you know if it's the amp that sounds great or the speakers, or if the fault is with the amp or with the speakers? I realise that you're going to hear the difference if you upgrade either your amp or your speakers, but I'm just about to buy my first ever amp and speakers all at once, so I have no way to tell what's good and what's bad. Can the audible effect an amp has on the sound be put into words? Likewise for speakers?