Sennheiser HD 400 Pro Professional Headphone

What's in the box?

• HD 400 PRO Studio Reference Headphone
• 3 m coiled cable with 3.5 mm jack plug
• 3.5 mm jack plug to 6.3 mm adapter
• 1.8 m straight cable
• Quick Guide
• Safety Guide

Technical Data

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  Impedance

  
  

  
  

  120 Ω

  
  

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  Frequency response

  
  

  
  

  6 Hz to 38 kHz (-10 dB)

  
  

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  Sound pressure level (SPL)

  
  

  
  

  110 dB (1 kHz / 1 V RMS)

  
  

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    THD, total harmonic distortion

    
    

    
    

    < 0.05 % (1 kHz / 90 dB SPL)

    
    

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    Ear coupling

    
    

    
    

    circumaural

    
    

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    Jack plug

    
    

    
    

    3.5 mm jack plug with 6.3 mm adapter

    
    

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    Weight

    
    

    
    

    240 g

    
    

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    Storage temperature

    
    

    
    

    –55 °C to +70 °C (–67 °F to 158 °F)

    
    

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    Operating temperature

    
    

    
    

    –15 °C to +55 °C (5 °F to 131 °F)

    
    

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    Operating relative humidity

    
    

    
    

    ≤ 90 %

    
    

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    Accoustic principle

    
    

    
    

    dynamic, open

    
    

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    Ear pad material

    
    

    
    

    Velour