Live music has very little depth? I don't understand that at all. At the symphony hall I hear the violins in front with woodwinds behind them and horns behind that, that is the way it sounds to me and that is how I would define depth. I do think it's very important in live music as well as on a stereo system. Something is wrong if you aren't gettting a sence of depth on your system or in concert. I would also agree that the speaker placement would be the first place to look. Also if you have a TV or large object between your speakers that can severely impare your systems ability to portray depth.