Headphone amp for Sennheiser HD 600/650?

What are the most synergistic headphone amps for use with either the HD 600 or 650?

zavato04-14-2014 10:14pm

jedinite24 Details Discussions Posts This discussion Message User 1,503 posts 04-15-2014 at 03:01pm Copy Comment URL Report Comment Edit Delete IME the Schiit Asgard headphone amplifier matched well with the Sennheiser HD600s when I had them.