Summary: After having these DJ headphones for about a month, I can see I'm fairly impressed despite the fragile appearance and the frequency response graph. UnEQ'd, mids and trebles will be slightly veiled(take it with a grain of salt) due to the bassy sound signature of these headphones; they are for DJ's...
Pros: Durability, looks, bass response
Cons: Muffled mids and highs(depends on eq), white one will stain.
Summary: GREAT BASS ON A BUDGET
Pioneer HDJ-500 review
(NOTE: this is a review of the HDJ-500, not the HDJ-500K. The difference is that the K model has a smartphone compatible 1 m cable to receive calls).
Pros: Plenty of tight punchy bass, great looks, detachable cables, very affordable, comfortable, right cup swivels, wide soundstage.
Cons: Plasticky and squeaky, recessed and grainy mids, loose cable lock, not collapsible.