The main reason I use a DAC is so I can keep a multi-player in my system. The transports I used with the DAC were a Rotel RCC 945 CD changer, Arcam Alpha MCD and RAM-modded Toshiba 6915 universal player. I evaluated the DAC mainly in two systems. One system consists of a Symphonic Line Kraftquelle integrated amp and Vienna Acoustics Beethoven speakers. The other consists of a RAM-modded PS Audio HCA-2 amp/PS Audio PCA-2 preamp and Odyssey Audio Nightingale speakers. I use PS Audio UPC200s with both systems. I also briefly listened to the DAC in a bedroom system that consists of an LFD Mistral integrated amp and Morel MLP 203 speakers.
In addition to what I have listened to, though admittedly not all in my home, I have owned: Benchmark DAC-1 (original and later version), Scott Nixon Tube DAC+ (with outboard power supply), EVS Millenium II, MSB Gold Link III (with outboard power supply), McCormack DAC-1 Deluxe, Audio-by-Van Alstine Transcendence R-DAC, various Audio Alchemy DACs, Channel Islands Audio (with outboard power supply), Bel Canto 2 and Bolder Mensa ART DI/O.