24bit has posted a review of the NAD VISO HP50 headphones ($299) at Headfonics. His conclusions:
“I regard this headphone as the best closed back $300 and under headphone of recent times. I think it is superior in sonic quality to the likes of the Momentum, M-100 and the Denon D-2000, but the HP50 is also vastly inferior in musicality. This is not a musical headphone to me and seems setup for those who either prefer this type of flat response ( there are a lot of audiophiles who like this ) or studio engineers who need a solid pair of monitors. Studio’s in general are going to love this headphone and right now I cannot think of a single closed back sub $300 set that even remotely came close to the overall usefulness of this headphone. It’s one of those well rounded headphones with no real weaknesses.”
You can read the full review here.