Sennheiser HDA 300
Audiometric Headphones


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The Sennheiser HDA 300 is a pair of closed, dynamic headphones designed for use with audiometers.

Sennheiser HDA300 Headphones Features:

  • Suitable for high frequency audiometry
  • High passive ambient noise attenuation - patients onlyhear what they are supposed to hear
  • Excellent repeatability of readings
  • Excellent comfort fit even for long testing periodsthanks to soft, replaceable ear pads and two padded headbands
  • Single-sided cable for tangle-free sessions
  • Equipped with two mono plugs for immediate use
  • Foldable ear cups for portable use and easy storage
  • Design approved by the PTB (German organisation for type approvals, a national standards organization similar to the British Standards Institute orthe American National Bureau of Standards).
    • The HDA 300 complies with IEC60645-1

Sennheiser HDA300 Headphones Specifications:

  • Frequency response (headphones):  20 Hz - 20,000Hz
  • Characteristic SPL:  117dB at 1kHz, 0,5V
  • Contact pressure:  8.8N +/- 0.5N
  • Ear coupling:  Circumaural
  • Connection cable:  6.56ft (2.2m)
  • Transducer principle:  dynamic, closed
  • Weight  incl. cable: 1.1lbs
  • Nominal impedance:  23 Ohm
  • Load rating:  500 mW
  • Max. Input voltage:  3.5 V, < 10 min
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