General Description

The HD 250 II Linear are closed dynamic hi-fi stereo headphones with the feel of an open design.  They are an ideal choice not only for professional monitoring and live sound recording, but also for use with high-end hi-fi systems where they ensure undisturbed enjoyment of music.

AuSIM enhances the basic HD 250 for audio simulation work with the addition of a mounting pad for a head-position tracker.  Because of their unique headband, the HD 250 offers improved positional accuracy when used with a tracker.  The top of the band maintains a consistent distance from the listener's ears, regardless of head size and shape.

The combination of tracker mounting, sound quality and comfort make them a perfect solution for use in a Virtual Reality environment.

AuSIM part number: AuHD250
Headphones can be ordered through AuSIM's on-line eCommerce site ... ORDER

Features Precise sound reproduction with wide dynamics Extremely lightweight aluminum voice coils ensure an excellent transient response Neodymium ferrous magnet systems for optimum sensitivity Diffuse field equalized for unadulterated listening Detachable OFC copper cable, very low handling noise Head trackers maintain precise height from the ear-plane, regardless of head size and shape			Sennheiser HD 250 Headphones [ZOOM]
Technical Data			Sennheiser HD 250 headphones with mounted tracker. [ZOOM]
Nominal impedance	300 Ohm
Load rating	200 mW
Contact pressure	3 N
Weight w/o cable	215 g
Jack plug	1/8 inch/3.5mm stereo mini jack plug with adapter to 1/4 inch/6.3 mm stereo jack plug
Transducer principle	Dynamic, closed
Ear coupling	Circumaural
Connection cable	10 ft/3 m detachable single-sided OFC cable
THD, total harmonic distortion	< 0.2 %
Sound pressure level (SPL) @ 1 KHz	94 dB
Frequency response (headphones)	5 - 40,000 Hz (-10 dB) 10 - 25,000 (-3 dB)