Is it still on offer? I remember CJCROSS advising me to buy one (£350) to boost the potential of my CD player(Marantz CD6000 OSE), to take it well above the performance of a similarily priced dvd player. I want to get rid of the overly bright and harsh treble, and improve bass. 1. But what exactly does it do to the sound? I'm intrigued to see how the character of the sound will improve. 2. Is all i need the dac and the cd player? 3. Is it still available cheap? 4. How does it compare to other DACS, do they vary in performance? 5. What is a DAC for? Why doesn't everyone buy one if they are so useful?