I have the Avid HD Native thunderbolt interface (for Pro Tools) that has a built-in headphone amp. When driving my AKG K702's, this amp/dac gives me smooth, pristine and very clean sound. It's about as good as I've found for critical listening on headphones. It's very powerful, going beyond 12 o' clock is ear damage zone for me.
Edited by Jbucla2005 - 1/16/14 at 3:35am