Yeah that should be fine. The Vega scales up with equipment, so when you get a better DAP, get a balanced pure silver cable, and upgrade your music library to minimum FLACs, no MP3s.I absolutely plan on getting a great DAP to go with it, just currently I need the IEM far more. I can probably get the DAP in about a month or two. Would the Vega be driven well enough by my phone (S9+)/iPod?
For the amount of bass it has, it very very little to no bleed into the mids, the clarity is very nice. You'll appreciate it coming from the T20, which is no slouch of an iem either.