Help on Future Audio Setup

Hey guys im looking to get a new audio setup and I have already made my mind on headphones but I don't know what to get. I have been looking at a used item by mayflower electronics that is cheaper then the Objective 2 Amp and Dac combo but im not sure what it is. I don't know if it is a amp and dac combo or one of the other.

Unsure Of: http://www.ebay.com/itm/281258375978

Objective 2: http://www.ebay.com/itm/Objective2-ODAC-Combo-with-Rear-Power-O2-/281209132695?pt=US_Pro_Audio_Amplifiers&hash=item41795ed697

Thanks for the help

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