Sennheiser Headphones HD 250 User Guide

HD 250 II Linear  
Headphones | DJ & Studio Headphones  
Cat. No. 004393  
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.  
Technical Data  
Frequency response ..................... 5 – 40,000 Hz (10 dB/1 kHz)  
10 – 25,000 Hz (–3 dB/1 kHz)  
Transducer principle................................................ 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)............................................................ 215 g  
Connector............................. 3.5 mm Ø stereo mini jack plug with  
adaptor to 1/4” (6.3 mm) stereo jack plug  
Connection cable................................................. 3 m, detachable,  
dual-sided OFC copper cable  
Features  
Diffuse Field Frequency Response  
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  
Recommended Accessories  
HZR 62 stereo volume control  
Cat. No. 005248  
Cat. No. 034183  
10-25,000 Hz  
3.5/6.3 mm  
300  
< 0.2 %  
215 g  
Replacement Parts  
Ear pads (1 pair)  
OFC  
3 m  
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