Spkr The DIY Audio site is filled with a ton of projects and resources: Pass Labs, Solid State, Chip Amps, Tubes, Class D, Analogue, Digital Loudspeakers, Musical Instruments, Music, Introductions, a Market Place, Electronics Parts and Car Audio. The diyAudio wiki is a collaborative effort to create the ultimate DIY reference site. You can create or edit any Wiki page you like, anywhere you like Link. Thanks Sam!