Where can I get REAL technical information about Spark Board and supporting components and systems.  All I can seem to find on the Cisco website is generic rudimentary advertising.  I support the video Cisco material throughout American Eagle Outfitt...

we have 6 ceiling mics in an area where we would like to place an SX-10 or 20.  As you know, the line input has a direct loop out to the live speakers.  We need the mics to NOT be heard live as input on the line input.  We need to use the MIC level i...