That is awesome!
So you are using your mobo's onboard audio. I have a Gigabye GA-MA790FX-DS5, with Realtek ALC889A onboard, but I have been using my old Soundblaster PCI-Express X-Fi Xtreme Audio. Not sure if the newer mobo's sound is better than the soundblaster...
I am likely going to get the Yamaha sub soon.
Thanks for the info!