Just looking for opinions on sending digital audio over say 1000' of cable. I'm thinking this is going to be I2S format, or a TDM based format, and may need to be daisy chained. The latency needs to be low, say 1 frame per jump. Maybe RS485? -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist