pietcux
Headphoneus Supremus
You might want to check the HD660S. It is easier to drive and comes with a Pentacon terminated cable. I can use that cable on both the HD650 and the HD660S now. I prefer the HD660S as it sounds more dynamic out of a DAP. On my HDVA 600 amp they still sound different, but the HD650 can nearly be as dynamic as the HD660S.