YJ, I have the GP as well, I have had it for about a month. I figured out how to get it going on my Mac Book pro, not too difficult however it did not like Pure Music, kept stopping after 3 or 4 songs. I ditched PM and I am now using the trial version of Amarra and they seem to like each other just fine. My real problems started when I first hooked the GP up with my system and I kept getting hum through the speakers and my mono blocks power meter went crazy. To make a very long story short, after trying all the usual tricks to eliminate a ground loop I have to use both XLR and RCA connections to my amps to eliminate the hum and make my mono blocks happy...Go figure?
Peachtree audio Grandpre
Just got mine delivered today. Had some startup technical difficulties installing USB driver for PC. But after incurred it out the sound emanating from this sexy looking unit has proven to be breathtaking,and that is only only in the first few hrs. W I'll update after 250...am interested in others feedback that have this unit or considering it..v