I'm interested in this DAC too. Any review on how it pairs with the C5 will be appreciated. This may be a stupid question and not specific to the C5. If I'm using a LOD to feed an amp will my ipod's battery last longer? Seems like since it's not pushing the headphones it would consume less power...
Just to make it clear DD socket 1 is an iDevice DAC, it is not a DAC for your computer. It can charge your iDevice battery and hence prolong its battery however the downside is that it will reduce its own battery life. So it can be useful if you want to listen to high quality music via your phone but need your phone battery.
I am doing extensive batter testing on DD, the charge time is 5 hours give or take 30 minute, so that could be a factor for some!
More to come by end of the week.