i dont know much about eletronic specified headphones but audio technica ad700 are great for gaming, the bass is more controlled but lacking for bass heads. However due to their lack in bass, atleast some would say that, they have great sound stage. So they are known to be popular with fps gamers.
audio technica ath md50, are great all around headhones and does not have super high impedance. They have more bass characteristics and is more lively then ad700. Sound stage is good but not as wide as the ad700.
Sennheiser hd555 and hd 595. The hd555 are mod-able thus able to bring out more lively characteristics to make it sound simular to 595. As far as what they sound like, i forgot what people have said, but after mods they can be a very balance headphone .
Review over at headfi for portable headphones, so recon most headphones reviewed are catered to portability and low impedance, but that doesnt mean they can be used fro a great computer setup.Edited by lilraver018 - 4/1/11 at 10:10am