Keep in mind Ben has never claimed his past dacs were upgradable. He has really separated out the various parts of the Evo dac so they can be swapped out for new boards and/or parts. Look closely at the pics to see this.
I personally upgraded my Mystique 3 to an Evo by upgrading chokes, USB card, wiring, opamps, grounding and shielding. It was a royal pain in the rear. Very difficult and a darn near impossible task. After seeing what he did to change that in the Evo it is a completely different task and upgrading will be much easier.
I personally upgraded my Mystique 3 to an Evo by upgrading chokes, USB card, wiring, opamps, grounding and shielding. It was a royal pain in the rear. Very difficult and a darn near impossible task. After seeing what he did to change that in the Evo it is a completely different task and upgrading will be much easier.