Purpose of a DAC and Redbook Presentation


I have seen DACs on audiogon. What is their purpose? Who would benefit from buying one? What does the term "redbook presentation" mean?

Eagleman
eagleman6722
Eldartford
Wish it was like that.Some older top of the line Dac's are still holding strong.
yes there is a benefit but you also need a very good digital cable. The other option is to have your CDP internal DAC modified.