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Opis
The HD 300 PROtect is a closed dynamic headphone built for professional monitoring. Its ActiveGard circuit can be switched on to lower sudden loud signals to a 110 dB SPL ceiling at 1 kHz, keeping the signal undistorted while protecting hearing. The design is intended to meet the European noise directive for workplace safety.
The sound is tuned to be linear and neutral, with a frequency response of 6 Hz to 25 kHz and distortion below 0.1 % at 1 kHz and 100 dB SPL. Soft viscoelastic earpads and a balanced contact pressure of 6.0 N are meant to keep the headphone comfortable over several hours, and the closed earcups attenuate ambient noise passively by up to 32 dB.
The headphone connects with a detachable 1.5 m cable ending in a 3.5 mm jack, using Sennheiser's system connector, so the cable can be exchanged. A 1/4 inch adapter jack is supplied for larger sockets.
Specifikacije
- Znamka
- Sennheiser
- Model
- HD 300 PROtect
- Kategorija
- Slušalke
Audio
- Transducer principle
- dynamic, closed
- Frequency response
- 6 Hz - 25kHz
- Impedance
- 64 ohms
- Sensitivity
- 108 ±3 dB SPL / 1 V rms / 1 kHz
- Distortion
- < 0.1 % @ 1 kHz, 100 dB SPL
- Max. sound pressure level (ActiveGard off)
- 123 dB SPL @ 1 kHz
- Max. sound pressure level (ActiveGard on)
- 110 dB SPL @ 1 kHz
- ActiveGard
- 110 dB SPL @ 1 kHz
- Noise cancellation
- Max 32 dB (passive)
Connectivity
- Cable
- 1.5 m with 3.5 mm jack
- Adapter
- 1/4" adapter jack
- Cable type
- Exchangeable, Sennheiser system connector
Power
- Power consumption
- 500 mW
Physical
- Ear coupling
- circumaural
- Contact pressure
- 6.0 N ± 0.75 N
- Weight w/o cable
- 297 g
- Operating temperature
- -15°C to +55°C
- Storage temperature
- -55°C to +70°C
In the box
- Headphones
- 1 HD 300 PROtect
- Cable
- 1 cable (1.5 m with 3.5 mm jack)
- Adapter
- 1 1/4" adapter jack
- Documentation
- 1 Quick start guide
Vprašanja
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