New model by incorporating all new Pioneer technology for clear sound (but not too unlike BOSE) and precise and a very nice sound insulation for use.
Compared to an HD-25 a little older, it is a very good alternative for fans of the brand.
I advise viviemnt

Very valuable headphone to its simplicity, usability and frequencies supported.
Comfortable and adaptable, it will suit any cranial morphology.
Point to remember: twisted cables and classical, but not angled tip, shame

Very good perceived quality for use in situations or "home studio"
Very suitable for mobile use.
The clip or the cable change is complicated, but well thought

A panel of wide frequency available, although significant
Low not too marked, acute distinguished
Accurate sound and a very good performance overall