Usually when you plug your headphones into a receiver, the speaker amplifiers stop driving the speakers and switch over to driving the headphones.
I would guess your receiver can easily drive 600-Ohm headphones, so 250-Ohm should be no problem.
Is the PS3 connected to the Pioneer with optical or HDMI?
I would think the Blu-ray movies would benefit from using HDMI, over optical.
Hopefully burn in solves the bass problem.
I bitstream via HDMI only from PS3 (as well as HTPC) to Pioneer AVR so as to ensure best A/V experience possible.
Hmmm...good to know about the receiver driving 600ohm as I was skeptical and opted for DT990, 250ohm instead (I may swap them to compare now).
Appreciate the response, PurpleAngel, and hopefully I am more satisfied after a few days of burn-in.
So Pioneer AVR should power Q701 even easier then? Curious if anyone else uses their receiver for gaming (I can't be the only one)?