Aurvana's are good headphones especially when bought for the sale price of $60 or so. But in all honesty the drivers in the HA-S500 are superior..I only wish the Ha-S500 had bigger cups like the Aurvana lives but the most important part of the headphones win here which is the sound.
Over all detail is better over the Aurvana lives. Especially in the bass end. Aurvana lives bass end can sound somewhat flabby if not grainy on low bass tracks. Not so on the HA-S500. Overall I would say the sound is tighter, cleaner. I think where the Aurvanas win is the housing design as they are over ears. But a simple pad change fixes the on ear issues. I do hope JVC brings these great headphones to the Western world.
Aurvana Live Graphics