document updated 17 years ago, on Sep 4, 2006
one possible solution:
- get an unused computer
- get 4-6 cheap sound cards
- combine their outputs with a super-trivial mixer: http://www.tkk.fi/Misc/Electronics/circuits/linesum.html
As long as the soundcards retain their mixer settings when the power is off, this should
result in a fairly brain-dead mixer, whose volume levels can be modified by software as
needed (over the network, or automatically, or whatnot).
If you wanted to use only 2 or 3 sound cards, you could use this:
http://www.newegg.com/Product/Product.asp?Item=N82E16812102107
Cut it in half, wire each half up to a stereo input thingy...
http://www.epanorama.net/documents/pc/cdrom_audio_wire.html
And connect that to the CD-ROM and aux-in line-level connectors