Ive been looking for a headphone Amp for my Denon hd2000s and went through a few before i got a hold of the Arcam unit.
I had the HRT headstreamer which worked but controling the volume from the pc just didnt work for me. Then i got hold of the FiiO e17 which sounded good and had great functionality. Unfortunatly i got through 2 faulty ones before i gave up on it.
So now i have the Arcam and have been using it for the past week. I am going to miss the FiiO and its various outputs/inputs especially the way it worked with my ipod. But the arcam has better SQ and boy does it have headroom. This thing can go loud and keep its composure. It also appears to have no background noise , i forget im listening to a crappy notebook run of the mains.
If anyone is considering this unit i would say dont hesitate in giving it a go. My sennheiser 25s benefit as well with a much better bass response. Its a cool little unit.