Sam, yes the Gefen is set, no need to mess with it

page 35 of the samsung manual, set digital output to PCM(not bitstream)
page 36 of the samsung manual, set pcm downsampling to 0ff
page 36 of the samsung manual, set dynamic compression to off
page 37 of the samsung manual, set all speakers to on/large and sub to LFE
page 41 of the samsung manual, set anynet to off

get and insert a blu-ray with a LPCM track, this is a Sony disc most likely

to name a few Fifth Element, Memento, Species, Black Hawk Down XXX etc.

make sure in the movie menu that you select LPCM as the audio track, start playing the film

on the Edge to Meridian, you should have the first RCA connected to l/r, the second to c/sub and the third to sr l/r

as for its settings you will have to get help

thanks

-Gary Murrell
http://www.custom-ht.com/oppopowerbuy.html
My Personal HT setup