diyAudio logoThis is a site dedicated to amateurs working on or thinking of working on audio projects. There are many ongoing projects and the signal-to-noise ratio is quite good (not many flame wars). The range of subject is broad, as shown by the forum categories:

  • Pass Labs
  • Solid State
  • Chip Amps
  • Tubes
  • Class D
  • Analogue
  • Digital Loudspeakers
  • Musical Instruments
  • Music
  • Introductions
  • Market Place Electronics & Parts
  • Everything Else
  • Car Audio
  • The Moving Image
  • Archive

Although I am not much of a forum contributor, I’ve learned a lot of good information from diyAudio.com. The moderators are good and the information is backed up by a Wiki with supplemental information. There is a very international flavor here, too.