Tough as nails
I have seen countless DJs with the Sony MDR V700DJ all taped up because they are poorly made. The HD 25, on the other hand, rarely break and items that do need to be replaced often (ie, the ear cushion) are available cheaply and can be replaced easily by the user. Even if one of your cups goes our you just pop in a new one.
Specs - From Sennheiser's website
The closed-back HD 25s are purpose-designed, professional monitoring headphones offering high attenuation of background noise. Capable of handling very high sound pressure levels and of extremely robust construction, these headphones perform exceptionally well in high-noise environments, e.g. ENG, sound reinforcement, studio monitoring and audio equipment testing. The capsule is retractable for one-ear listening. Ideal monitoring headphones for cameramen and DJs.
Features (From Sennheiser's website)
•Very lightweight and comfortable, even if used for long periods
•High maximum sound pressure level (120 db)
•65 .nominal impedance for universal compatibility
•Tough, detachable steel cable
•Neodymium ferrous magnet systems and lightweight aluminum/copper voice and more.
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