Thanks for the help guys. I decided not to go with the modi/magni. I decided that It would be better to buy a higher-end DAC and headphone amp once I get the money to buy some more expensive headphones to make them worth the money.

I currently have a Nuforce udac2 hooked up to a topping tp-21, Im using the Beyerdynamic DT 770 pro 250 ohm ,and the AKG K701 as my headphones. FLAC as source.   Udac2...