G5 digital Audio input-output tiger

SiteCR2

Registered
new logitech 5500 speakers.. great item.
dvd player outputs digital audio.
PS2 direct to speakers work fine.
when I try to run optical in and pass through the G5 1.8dp nothing comes out.
sound preference panel shows digital coming into the computer... bars moving in sound meter area.
tried w/ garage band on too.
about this mac shows this.

Crystal Semiconductor CS84xx:
Inputs and Outputs:
S/PDIF Digital Input:
Controls: Mute
Playthrough: No
PluginID: Topaz
S/PDIF Digital Output:
Controls: Mute
PluginID: Topaz

passthrough no --- problem???

tried the audio midi w/ digital input but up top only allows built in audio.
can't can't multi channel setup either
while below allows me to select digital input and output but
nothing happens.
searchs on forum haven't produced much. frustrated.
thanks
sitecr2
 
a simple software solution it seems.
don't know why it doesn't work straight up but this works
his will work:

Rogue Amoeba's LineIn

thanks to cary cooper on mac owners group forum
 
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