lm3886 boards

just to clarify what GC production boards sound the best? and to snubberize or not, need 10 boards lm3668 and 4 sub boards possibley lm4780. what is the differece between non inverting and standard? also do i need individual ps boards for every stereo channel? or could a single ps serve them all? suggesztions are welcome aleady running 1 test gc per Brians specs without snubberized ps instead regulated comercial supply. I have orcad for board design but will not proceed without permission from brian.