I have been looking for ages for a charging doc for my ipod classic. I ran into this little beauty that in addition to a doc, also has an onboard dac. I can't honestly tell much of a sound difference, seems as if the sound is fuller? Whatever the hell that means. I believe it sounds as good as my cd player does, although that could just be my old ears not knowing any better.
Bottom line is, for 100 bucks I have retired my cd player, and am again happy with my Sierra system. A HUGE thank you to Dave for fixing my blown Sierra!!! Your customer service never ceases to amaze me!

Jim