[. . . ] HD 250 II Linear Headphones | DJ & Studio Headphones General Description The HD 250 II Linear are closed dynamic hi-fi stereo headphones with the feel of an open design. [. . . ] dynamic, closed Frequency characteristic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . diffuse field equalised Nominal impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 Characteristic SPL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 dB (at 1 kHz, 1 Vrms) Load rating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mW THD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 0. 2 % Ear coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . circumaural Contact pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 N Weight (without cable). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] 3 m, detachable, dual-sided OFC copper cable Features Precise sound reproduction with wide dynamics Extremely lightweight aluminium voice coils ensure an excellent transient response Neodymium ferrous magnet systems for optimum sensitivity Diffuse field equalised for unadulterated listening Detachable OFC copper cable, very low handling noise j j j j j Diffuse Field Frequency Response Recommended Accessories HZR 62 stereo volume control Replacement Parts Ear pads (1 pair) j j Cat. [. . . ]