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HDA 280
HDA 280

HDA 280

Designed for use with audiometers.
DKK 1,650.00
inkl. moms – gratis forsendelse
Varenummer 009860

Overblik

The HDA 280 is a pair of closed, dynamic headphones designed for use with audiometers.


Funktioner

  • Position-independent audiometer headphones

  • Excellent reproducibility of measurements

  • Soft, exchangeable ear pads

  • Space-saving design with collapsible, rotating ear-pieces

  • Comfortable to wear due to exchangeable headband padding

  • Single-sided, exchangeable cable

  • Core assignment: green: +L, copper: -L, red: +R, copper: -R

  • Type approved by the German Physikalisch-Technische Bundesanstalt (PTB) as per IEC 60645-1

  • Measurements of ETSPL-values for the HDA 280 headphones are published in International Journal of Audiology; Poulsen, T., Oakley, S.: Equivalent threshold sound pressure levels (ETSPL) for Sennheiser HDA 280 supra-aural audiometric earphones in the frequency range 125 Hz to 8000 Hz. International Journal of Audiology, vol 48, page 271-276, 2009


Kassen indeholder

  • 1 HDA 280 audiometer headphones
  • 1 unterminated cable (approx. 3m)
  • 1 spec sheet (German/English)
  • 1 guarantee card

Tekniske data

  • Frekvensområde (hovedtelefoner)
    20 - 20000 Hz
  • Characteristic SPL
    117 dB
  • Kontakttryk
    5 N +/- 0,5 N
  • Connection cable
    3 m
  • Transducer-princip
    dynamic, closed
  • Vægt
    330 g
  • Nominal impedance
    37 Ω
  • Impedans
    500 mW (EN 60268-7)

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