Currently Being ModeratedDec 4, 2012 6:50 PM (in response to ozziesnick)
my laptop's sound card does not have anything to do with the sound being streamed wirelessly to my stereo through my AE?
That is correct.
If that is so, I guess that is why sound through the AE is a bit louder than when I connect the PC directly to the AV receiver with RCA cables. Correct?
Yes, that would be a reasonable assumption as they are two totally different means to reproduce sound from your PC.