Hi Gunsur,
Take a look at my review on the AA Tube Hybrid reference DAC for details regarding its sonic performance. I have heard both other DACS that you are interested in, and like the Accuustic Arts better. If it's in your budget, and you really mainly care about redbook CD, consider the Concert Fidelity reference DAC that finally replaced the Accoustic Arts DAC in my system.I also wrote a review on it here on the GON, so for details regrading its performance, take a look.
Take a look at my review on the AA Tube Hybrid reference DAC for details regarding its sonic performance. I have heard both other DACS that you are interested in, and like the Accuustic Arts better. If it's in your budget, and you really mainly care about redbook CD, consider the Concert Fidelity reference DAC that finally replaced the Accoustic Arts DAC in my system.I also wrote a review on it here on the GON, so for details regrading its performance, take a look.