You should also check out
Audiogon which I've found to be more 'accessible' to the non-or-newbie-audiophile than Audio Asylum (i.e., there is a head-fi-like friendliness at Audiogon in terms of the rapport among the regular posters). Be forewarned, however, it's mostly a place to buy and sell gear! And if you think headphones are expensive...
Audio Asylum is a great place to visit if you need to learn what the 'experts' think about anything under the sun. But I've seen far too much showmanship going on at AA to ever get comfortable asking questions there myself. It's as though a big room full of guys are sitting around all day waiting to pounce on anyone they can, simply to display their dizzying, hypertechnical knowledge. Or, more to the point, to prove among themselves who is
most correct. Typically, a simple question is asked and a simple answer is given by Guy #1 (who recognized and respected the nature of the initial question). Then Guy #2 tries to prove why Guy #1 is technically wrong about some
already technical point that Guy #1 threw in only for the benefit of the person making the initial inquiry (and being ever so helpful at that). Guy #1 replies that Guy #2 is laboring under fase assumptions, then Guys #3 through 8 join in, and on and on it goes. The testosterone level at that place makes my butt clinch in fear as though I had just left my lovely wife to join the prison rugby team. Not something I would volunteer for. But hey, that's just my opinion.