The path to audio nirvana sometimes takes us in dark and difficult directions. We must fight terrible evils (such as room nodes) and stand strong against great adversities (such as <a href="http://blog.stereophile.com/stephenmejias/making_music_again/">static electricity</a>) to achieve sonic bliss. We have all encountered our fair share of audio demons. Describe your personal hi-fi hell, or tell us about your most treacherous hi-fi demon.