You never know what headphones you are going to use in the future ... Kann Alpha has, not only the power, but also has 3 gain levels that give body and authority even to my iems with EST drivers, planar, etc. It also has various configurable line output levels that make it compatible with a variety of full-size external amplifiers ... that said, I would always try to upgrade my own headphones first. The source and amplification is important, but I always recommend spending 75% of the budget on the best headphones you can afford and spending the remaining 25% on Dac-Amp. Do not rush with the decision and value well the system you want to have in the future ...