The SE-MJ591 is the best headphones Pioneer knows how to make - and with over five decades of headphone experience, that's saying something. The 40 mm drivers and aerospace-grade construction materials ensure undistorted bass, smooth highs, and realistic vocals, even when listening at comparatively high volumes.
These headphones sound great, but they're also beautifully engineered. Brushed metal accents mean these headphones look as good as they sound. Comfort was a paramount concern in the design of the SE-MJ5991, and so the earpads are filled with memory foam. The cord is removable to cut down on clutter and tangles. For travel, the headphones collapse and fit neatly into the included padded carrying case.
Specifications: • Impedance: 32 ohms • Sensitivity: 108 dB • Frequency response: 5 to 40,000 Hz • Maximum input power: 1,000 mW • Driver diameter: 40 mm • Cord: detachable 3.9 ft.