I have Classe CDT-1 and DAC-1. Cables are important and I recommend the Illuminations Orchid. You also might want to try a Monarchy DIP between the transport and DAC. I've been experimenting with the DIP, Illuminations Orchid and D-60. All of them provided improved performance to varying degrees.
help with DAC w/current system
I've never used an outboard DAC before, but have a chance at a killer deal on a Classe DAC-1 (Stereophile class A, $4000 retail). I currently have a Rega Planet CD player with a nice Classe amp and B&W speakers. Does anyone know what and how much of an effect a DAC like this would have on a system of this caliber? Any ideas would be appreciated.