I have approx 700 CDs ripped at 320kbs on my computer. I play them thru my 990 using a wireless system called Omnifi(D-Link) using Simple Center software. I purchased this system at a discount store for $70.00 and it included the Wireless Adapter. I am very pleased with the sound, the outputs are analog, but still sound great. I would however perfer a box with digital output as I am sure the 990 DAC is better. If I want critical listening (whatever that is) I can always play the CD, but my ears don't hear a great deal of difference, and the difference, if any, could be in the 990's DAC.