Koss KDE250 Headphones ( over-the-ear ) ( KDE250 )
Koss developed the KDE/250 with a pair of dynamic transducers that mount at a perpendicular angle. The larger 20mm transducer is low frequency dominant and ported while the 13mm transducer focuses on mid and upper frequencies in a side firing angle. This combination of transducers allows greater efficiency and accuracy across the entire musical spectrum to levels that exceed audibility. Each KDE/250 features a matching set of customized ear clips. These three clips can be adjusted for height with...