Bose ProFlight Series 2 Aviation English Owners Guide - Page 56

Technical Information, noise level

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TECHNICAL INFORMATION SPECIFICATION Headphone sensitivity DESCRIPTION 92dB SPL measure at 1 mW input signal, 1 kHz, in Mono mode Headphone impedance Mono mode: 300 Ohms ON and OFF Stereo mode: 600 Ohms ON and OFF Headphone frequency response RTCA-214a range: 300 to 3500Hz Extended range: 40Hz to 15kHz Boom microphone sensitivity -27dBV (+/- 2.5dB) at 94dB SPL (1 Pa), measured at 6mm distance from artificial mouth, across 220 Ohms load resistor and biased with 12 Vdc via 470 Ohms resistor. Boom microphone bias Operating bias voltage range: 4 to 28 VDC Maximum ambient noise level 105 dBC SPL for full active noise reduction performance Battery power source Two (2) AA alkaline batteries Battery life Up to 45 hours in typical commercial jet aircraft noise. ­Duration varies with battery age, ambient noise levels, ­temperature, ear tip condition, and use of the Bluetooth feature. Aircraft power source Aircraft power voltage range: 10 to 32 VDC Average power consumption 250mW Fuse/breaker recommended 1/4 amp, fast-blow fuse (AGC 1/4 amp fuse) or 1/2 amp circuit breaker Headset weight 9.6 ounces, 4.5 ounces on head Headset size range Slider not extended: 8.425" (214mm) H x 6.34" (161mm) W x 3.15" (80mm) D Slider extended: 10.2" (259mm) H x 6.6" (168mm) W x 3.15" (80mm) D Control module dimensions 1.5" (38.1mm) H x 1.5" (38.1mm) W x 4.92" (125mm) D | 5 6 E N G

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ENG
TECHNICAL INFORMATION
SPECIFICATION
DESCRIPTION
Headphone sensitivity
92dB SPL measure at 1 mW input signal, 1 kHz, in Mono mode
Headphone impedance
Mono mode: 300 Ohms ON and OFF
Stereo mode: 600 Ohms ON and OFF
Headphone frequency
response
RTCA-214a range: 300 to 3500Hz
Extended range: 40Hz to 15kHz
Boom microphone
sensitivity
-27dBV (+/- 2.5dB) at 94dB SPL (1 Pa), measured at 6mm
distance from artiļ¬cial mouth, across 220 Ohms load resistor
and biased with 12 Vdc via 470 Ohms resistor.
Boom microphone bias
Operating bias voltage range: 4 to 28 VDC
Maximum ambient
noise level
105 dBC SPL for full active noise reduction performance
Battery power source
Two (2) AA alkaline batteries
Battery life
Up to 45 hours in typical commercial jet aircraft noise.
Duration varies with battery age, ambient noise levels,
temperature, ear tip condition, and use of the
Bluetooth
feature.
Aircraft power source
Aircraft power voltage range: 10 to 32 VDC
Average power consumption
250mW
Fuse/breaker recommended
1/4 amp, fast-blow fuse (AGC 1/4 amp fuse) or 1/2 amp circuit
breaker
Headset weight
9.6 ounces, 4.5 ounces on head
Headset size range
Slider not extended:
8.425" (214mm) H x 6.34" (161mm) W x 3.15" (80mm) D
Slider extended:
10.2" (259mm) H x 6.6" (168mm) W x 3.15" (80mm) D
Control module dimensions
1.5" (38.1mm) H x 1.5" (38.1mm) W x 4.92" (125mm) D