DAC or CD Player. Help!


Dumb question but I am new to the Hi Fi Field. When you hook up an DAC to your CD player which unit is dictating the sound that you hear. Does the CD Player really matter or is the CD player running the sound? Thanks!
128x128rsa
I think some of these responses are more complicated for the OP than they need to be.  In general, the DAC will determine the sound.
I agree that if a disc players transport and digital output is functioning as it should, the DAC used would likely make the greatest contribution to the sonics provided.

I believe that the concept of synergy in the development of a audio system is important. Optimizing electrical (objective) and personal preference (subjective) synergies provides for the greatest enjoyment of any system.

Do I, or will I, ever understand all that this implies? Never. Do enjoy the journey however. Thanks to all those on this forum that have helped me on the way!  
I get the point of what people are saying with "synergy," but unless you live in an audio shop, who has the money to throw a grand or two here and there to determine which component of the many they read about is 'the one' to mate with components they already own? I have to conclude that a lot of what 'synergy' means is whatever the poster thinks sounds good at that moment. Until he buys something else, of course, at which point the synergy changes to that. 
PS: expensive cables do. not. matter.
Price of cable might not matter, but one cable can deliver better sound than another.  Cheaper CDP can sound better than expensive transport when feeding DAC.  That is synergy.