I have a Asus Hero IV mainboard with SupremeFX onboard sound hooked up to a VSX-AX3. My current headphones are AKG 271 MKII, but they hurt my ears after a while. So I'm looking for better neutral headphones which need to be more comfortable. They can be more expensive than the AKG 271, but not too much. So I'm looking at Beyerdynamic DT 800 with 600 Ohms and I'm wondering if my Pioneer VSX-AX3 will be able to fully support them (in regards to sound quality). Unfortunately, I can't find any information on the headphone out of the Pioneer VSX-AX3, neither in the manual, Pioneer website, nor in reviews. I can't really imagine this AV receiver to be inadequate, but I just need some confirmation to make me sure about the purchase. Can anyone help me out?
If the Pioneer isn't enough, I see two options: buy a dedicated soundcard with integrated headphone amp, or buy a dedicated headphone DAC, like a FIIO or Beyerdynamic's own A 200 p. ...or rather, buy headphones with less impedance, in which case I'd ask for a suggestion.