The Zune HD was so underrated, arguably better imo. It cannot drive hungrier headphone without an amp, whereas the FiiO can.<br /><br />I think the Sen Amperior would sound better on the FiiO, as it suffers some painful peaks on the Walkman Z. This player is definitely worth $200, getting it on discount is icing on the cake.<br /><br />I hope a firmware fix will improve the UI