Holmco PD81 headphones for pure tone audiometry (10 Ohm)

Holmco PD-81 (10 Ohm) audiometric headphones from Holmberg for pure tone air conduction audiometers with sound-absorbing ear cups.
Especially for use in examination rooms with high noise levels. The headphones are supplied by the manufacturer with open wires.

Technical data:
- Pressure force: 14.5 N
- Weight with cable: 570g
- Connections: PUR cable, 4-wire, smooth, length 1.8 m, ends tinned
- Handset transducer principle: dynamic
- circuit of the receiver capsules separately led out
- Transmission range: 50 to 10,000 Hz
- DC resistance: 10 Ohm per capsule
- Rated power: 0.5 W per capsule
- Sound pressure level: 117 dB
- Achievable sound pressure level: greater than 130 dB at 500 mW (50 Hz - 9 kHz)
- Distortion factor: less than 1 % at 130 dB (50 Hz - 9 kHz)

Properties:
- Ear cups: impact-resistant plastic; colour: grey
- Colour coding of the auricles: right = red, left = blue
- Headband adjustment range according to the anthropometric dimensions according to Dreyfuß and DIN EN 352

Delivery: One piece
evidENT-Shop Article 337

Original manufacturer number: Item no. 95-03-05651
Manufacturer: HOLMBERG GmbH & Co KG, Berlin