I too have been using SONOS around my house. However just recently I was asked the simple question, why not try it in your hifi system. So I did, went out and purchased a Cambridge Audio DACMAGIC plugged it in via COAX, then balanced out from DAC to Ayre K-5xe preamp and balanced out to my MC252. I performed an A/B test with the CD transport I had at the time and as one memeber said, hell if I could tell the difference. So I have not looked back. I have ripped all of my music to FLAC and placed then on my NAS and its available to me 24/7 from anywhere in the house. I use the new SONOS controller in my listening room and am happy as a CLAM. Now am thinking of either modding my existing ZP90 or just buying one modded from Cullen. I am wondering if the extra $550 for the mod is worth it.