[Icecast] Best way to handle multiple (6+) streams

[Seth McTigh]

I have a need to stream 6 or 8 different audio sources (radios), and am 
seeking suggestions on the best way to do it.  Although I'd like to stream 
each separately, I could combine them to stereo streams and do 2 on each.

I'd like to know what the best hardware configuration would be to accomplish 
this?  Are there any multiple input sound cards that have been successfully 
tested, or will I need to run 6 or 8 separate boxes to stream into a main 
server?

Is it possible to configure 4 sound cards in a single computer?

Any suggestions/pointers would be greatly appreciated.

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