Another HUGE thumbs-up for the Tranquility DACs. I was so impressed with the original Tranquility that I upgraded to the SE. I recently bought the Ayre QB-9, just to compare it to the Tranquility SE. The QB-9 is a very impressive DAC, very detailed and accurate, but both my wife and I found that the Tranquility was more "musical". I really wanted to prefer the Ayre, due to its ability to handle hi-rez files, but the Mac Mini / Tranquility combo is just stellar.
