Originally Posted by -xX-Mew-Xx-
What if i went up to six hundred ?
$600 is probably too much for portable closed full-sized headphones (and too little for the super-high end closed headphones that run around $1,000+), but it opens you up a lot of very highly reviewed high-end open full-sized headphones.
For $600 closed headphones, you can look at the modded Fostex T50RP named Paradox for $495+. Mr. Speaker also does a modded Fostex T50RP named Mad Dogs for $300. Denon AH-D600 is another closed pair at $380ish. Sony MDR-7520 is around $360-400.
at $600 for open headphones, you can afford the HE-400 $400 (almost afford the HE-500 $700), Sennheiser HD 650 $500 or sennheiser hd600 at $400. Beyerdynamic DT 880 at $350. Akg q701 at $400. Audio Technica ATH-AD2000 runs at around $600. For these headphones, you would probably want to save $100-200 to get an amp as they have a pretty high impedance.
Here are some sources to help you look into the pricing.
Note: this is purely a price compilation. I haven't heard these headphones, so I can't tell you what they sound like, but they are all highly rated & probably what you should start looking at if you jump your price range.
At $300ish, I have heard headphones such as the MDR-1R, Momentum ($350), AKG K550, Ultrasone Pro 900, and V-Moda M100 if you are curious about those.