Specifications
HD 300 PRO | HD 300 PROtect
Acoustic principle
dynamic, closed
Ear coupling
circumaural
Frequency response
6 – 25,000 Hz
Impedance
64 Ω
Power rating
500 mW
Sensitivity
108 ±3 dB SPL / 1 Vrms /1 kHz
Max. SPL o. ActiveGard HD 300 PRO
123 dB SPL @ 1 kHz
Max. SPL o. ActiveGard off HD 300 PROtect
123 dB SPL @ 1 kHz
Max. SPL o. ActiveGard on HD 300 PROtect
110 dB SPL @ 1 kHz
Ambient noise attenuation
≤ 32 dB
Distortion
< 0.1% @ 1 kHz, 94 dB SPL
Contact pressure
approx. 6,0 N
Weight (w/o cable)
approx. 297 g
Cable length
approx. 1,55 m
Temperature
Operation: -15 °C to +55 °C
Storage: -55 °C to +70 °C
Relative humidity
≤ 90 %
HMD 300 PRO | HMD 300-XQ-2 | HMD 301 PRO
Headphone
Acoustic principle
dynamic, closed
Ear coupling
circumaural
Frequency response
60 – 25,000 Hz
Impedance
64 Ω
Power rating
500 mW
Sensitivity
108 ±3 dB SPL / 1 Vrms / 1 kHz Limiter off
Max. SPL ActiveGard off
123 dB SPL @ 1 kHz
Max. SPL ActiveGard on
110 dB SPL @ 1 kHz
Ambient noise attenuation
≤ 32 dB
Distortion
< 0.1% @ 1 kHz, 94 dB SPL
Contact pressure
approx. 6.0 N
Cable length
approx. 1.55 m
Microphone (BMD 404)
Type
noise canceling
Transducer principle
dynamic
Directivity
hyper-cardioid
Impedance
300 Ω
Sensitivity
0.4 mV/Pa @ 1 kHz
Near field frequency range
80 Hz – 16,000 Hz
General
Temperature
Operation: -15 °C to +55 °C (5 °F to 131 °F)
Storage: -55 °C to +70 °C (-67 °F to 158 °F
Relative humidity
≤ 90%
Weight without cable
approx. 319 g (HMD 300)
approx. 242 g (HMD 301)