I get really scared when the way a company describes the their driver differences is "ultra-premium" vs "premium." Objectively/critically that means nothing.
If you look at the tech specs of the driver listed, they look identical to me.
If there is a difference in sound quality/signature, I really think it would be due to the aluminium earcups. I just personally think some companies will simply release one version of their headphones with aluminium earcups already there, while other companies will release two versions of the same headphones and charge $100 for aluminium earcups. I personally would not be comfortable buying from the later company.
It isn't like the $300 Pro400 is a budget version since $300+ is already considered pretty premium for closed, portable headphones. Extremely highly-rated closed portable headphones such as the Ultrasone Pro 900, V-Moda M100, AKG K550/K551, Sony MDR-1R, Sennheiser Momentum/Amperior are all within the $300 range. In fact, at $300+ is the starting price of people looking to get into the entry-level true audiophile type set-ups that require amps such as the HE-400, AKG K701/Q701, Sennheiser HD600/HD650, and Beyer DT880, right? The next step from those headphones would be the $1,000+ set-ups.
Honestly, if you are happy with the Pro 500's sound quality & styling, that is great. I was never trying to pick a fight. I just recently gotten interested in headphones so I did a lot of research and comparisons. From what I've learned, I would slot the Pro 500 in the $300 range and still think it is a bit pricey.
The Pro 500 may be great sounding headphones... but if you think that the Pro 500 is a good value for your money, I personally disagree.
Edit: There's no reason to get offended or start calling me names. This is simply an opinion with supporting evidence. If you disagree, then just make your case. At the end of the day, the discussion will only benefit everyone reading this thread, and they can form their own opinions.
Edited by money4me247 - 3/5/13 at 12:59am