You push a pair of 880's and 650's with the FUZE HP out !!!!!!!!!!?????????
Here's what happened. I was listening to my Fuze with my DT880s soon after I bought it. I had it plugged into a Portaphile V2 Maxxed at the time and just for kicks I decided to see what would happen if I plugged the notoriously hard to drive DT880s directly into the Fuze. To my great astonishment, the Fuze was much louder than the level I was listening to from the amp. In a moment of clarity, I realized it was silly to use an amplifier as an attenuator so I unplugged the amp, lowered the volume on the Fuze and have used it that way ever since.
Sure, as a rule I don't listen very loudly from any of my amps, although I mostly use PK2s when I go portable with the Fuze.
Heck, my old MobieBlu could play the 650s and 880s and it sounded better than any earbuds that were around at the time.
Are you saying your Fuze can't do that?
You don't live so far away, maybe you can make it down to the next NY meet and I'll demo it for you.
Edit: I just ran a quick check for you. I'm listening to internet radio with my GS-1 and 650s. An equivalent volume level on the Fuze would be approximately 70% of Max.