[calipilot227]

I'm looking for a new portable player. I was wondering if the HM601 will be able to drive my Sennheiser HD580s without an amp (not looking for new cans right now, I'm very happy with their sound out of my Headroom Total Bithead). The HD580s and HD600s sound almost identical, so I guess if it can drive the HD600, it will drive the HD580. Sorry if this has been asked before. Looking forward to hearing your experiences.