mac mini

i have a mac mini that is used as a whole house audio system. in remote rooms, i use airport express units. in my family room, i use the mini to rca cable that plugs into a receiver. in my other rooms, i go out of the airport express or the mini itself into a jitter reduction device using the mini to toslink cable. huge improvement. from the jitter device (i use a monarchy DIP in my dedicated audio room and an audio alchemy DTI in my den), i go to an external dac (manley in my audio room, adcom gda-700 in my den) using coax cables. then i go from the dacs to the preamps. A good external dac is a must and the improvement using the jitter devices made just as big a difference as the dacs. from anywhere in the house, i control itunes using my ipod touch using remote buddy software.