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Sennheiser HD 300 Protect
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Closed headset
the HD300 Protect is a professional closed headphone monitor (64 ohm) with activated ActiveGardTM hearing protection and 1.5 m cable with 6.3 mm jack.
The HD 300 PROtect adds patented ActiveGardTM technology from Sennheiser, an advanced protection against the peaks of
level peaks above 110 dB. With ActiveGardTM, disruptive or harmful peaks are brought back to a level without
danger, and production remains under constant control. The HD 300 PROtect meets the Commission's directive
European Union on safety and noise in an industrial environment, but also protects the hearing and peace of mind of everything
the production staff, even in case of small or big surprises.
The HD 300 PROtect adds patented ActiveGardTM technology from Sennheiser, an advanced protection against the peaks of
level peaks above 110 dB. With ActiveGardTM, disruptive or harmful peaks are brought back to a level without
danger, and production remains under constant control. The HD 300 PROtect meets the Commission's directive
European Union on safety and noise in an industrial environment, but also protects the hearing and peace of mind of everything
the production staff, even in case of small or big surprises.
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Technical sheet
- Dynamic transducer type, closed
- Circumaural ear coupling
- 60 Hz frequency response - 25 kHz
- Impedance 64 Ohms
- Continuous power 500 mW
- Sensitivity 108 ± 3 dB SPL / 1 V rms / 1 kHz
- Sound pressure level (SPL) 123 dB SPL @ 1 kHz
- 110 dB SPL @ 1 kHz (ActiveGardTM on) ActiveGardTM equipped model only
- WBCV 0.308 V rms
- Ambient noise reduction (passive) Max 32 dB
- Distortion <0.1% @ 1 kHz, 100 dB SPL
- Contact pressure 6.0 N ± 0.75 N
- (140 mm distance, after 10 min., sliding arms moved for 5 clicks)
- Ambient temperature Operation: -15 ° C to + 55 ° C
- Storage: -55 ° C to + 70 ° C
- Relative humidity 90% @ 40 ° C
- Weight without cable (approx.) 297 g
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