Sennheiser HDA280 specifications
Description
The HDA 280 is a pair of closed, dynamic headphones designed for use with audiometers.
- Position-independent audiometer headphones
- Type approved by the German Physikalisch-Technische Bundesanstalt (PTB) as per IEC 60645-1
- 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
| Specification | Value |
|---|---|
| Frequency response (headphones) | 20 - 20000 Hz |
| Characteristic SPL | 117 dB |
| Contact pressure | 5 N ± 0.5 N |
| Ear coupling | supraaural |
| Connection cable | 3 m |
| Transducer principle | dynamic, closed |
| Weight | 330 g |
| Nominal impedance | 37 Ω |
| Nominal load rating | 500 mW (EN 60268-7) |