Superlux HD687 Semi-open Headphones

Equipped with the tailored ultra-high precision triple-layer diaphragm in order to reproduce the nature sound with less sound coloration and more balanced sound field. You are able to catch the clear resolution of each part and open sound field especially for the elasticity and the lasting charm of the bass instrument which is perfect for pop and rock.
General Features 
•Tailored ultra-high precision double layers film design.
•Low distortion, keep high sound quality.
•Detachable single side design.
•40 Ω impedance to provide best use with portable device which can also be used with the high-definition headphone amplifier system.

•Semi-open, Circumaural
•Very suitable for classic music appreciation

Type Dynamic, Semi-open
Driver ø51 mm, neodymium
HD687: 92 dB SPL (1mW) at 1KHz
Frequency Response 10-30,000 Hz
Maximum Power 200 mW
Rated Impedance 40 Ω (copper-coated aluminum wire)
Headphone Caliper Pressure 5 N
Cable Detachable 1-meter (3.3 ft.) & 3-meter (9.8 ft.) straight, single-sided; plugin cable on headphones (mini stereo connector)
Connectors Gold plated stereo mini plug
Net Weight (without cable) 250 g (8.8 oz)

FD1YW 1M straight cable
FD3YW 3M straight cable
•Plug adapter 3.5 mm/6.3 mm
•Cable Clip
•Carrying Pouch
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