Bose X manual Headphone, Impedance, Frequency, Response, Microphone, Electret

Page 32

TECHNICAL INFORMATION

Sound pressure levels (SPL) are relative to 20 micropascals.

Headphone

Damage could occur to avionics equipment

 

that is intended for use only with 600-ohm

 

headsets. If in doubt, consult the avionics

 

equipment manufacturer.

Impedance

Monaural mode: 160 ohms (ON) and 230

 

ohms (OFF) at 1 kHz

 

Stereo mode: 320 ohms (ON), 460 ohms (OFF)

Frequency

15 Hz to 15 kHz

response

Sensitivity: 90 dB SPL typical, measured at

 

 

1 mw, 1 kHz, full volume on KEMAR ear

 

simulator

Microphone

Bias required: 8 to 16 VDC through 220 to

(Electret)

2200 ohms

 

Sensitivity: Varies depending upon bias and

 

radio AC input impedance. Typical output is

 

600 mV at 114 dB SPL. To assure proper

 

modulation of the radio, it is recommended

 

that an avionics technician adjust its input to

 

match the output of the microphone.

Microphone (Dynamic)

Maximum ambi- ent noise level

Power source

Battery life

Current

Fuse/breaker recommended

Impedance: 5 ohms

Sensitivity: Equivalent to M-87/M-101

115 dBC and 105 dBA SPL

Battery powered: 2 AA alkaline, IEC LR6

Aircraft powered: 10 to 32 VDC

Alkaline: Up to 40 hours in typical general aviation aircraft noise. Battery life varies with ambient noise level, temperature, ear cushion condition and age of batteries.

Operating: 25 ma in typical aircraft noise

1/4-amp, fast-blow fuse (AGC 1/4-amp fuse) or 1/2-amp circuit breaker

32

Image 32
Contents Aviation Headset Declaration of Conformity Power source Operational advisoryHow use of the headset affects hearing safety Other cautionsEarcup inner screen StorageContents General cleaning Headset and cable variations Features common to most variationsWe appreciate your choice Introduction Date of manufacture Decide where you want the boom microphoneLocate the serial number for your product registration card Removing an attached boom microphone cable Attaching the boom microphone cableClothing clip Preparing to use battery power Changing the optional operation switchesAttaching and removing the cable Preparing the aircraft powered headset for useInserting batteries Mounting the connector Details on making the connections Use proper adhesives Mono, stereo, and helicopter connection diagrams Wearing it properly Conditions related to fitOperating the battery powered headset Microphone placementPower button Volume control using multiple headsets Battery power indicatorControlling the volume of a single battery powered headset Operating the aircraft powered headset Power switchControlling the volume of a single aircraft powered headset Cleaning the headset General cleaningInstructions for airworthiness Earcup TriPort headset openingsReplacement parts Ear cushionsMicrophone windscreen Earcup inner screenReplacing parts Microphone windscreen replacementEar cushion replacement Headband cushionBattery replacement Boom microphone cable Or connector access cover replacement Battery door replacementHeadband cushion replacement Problem What to do Case of difficultyTroubleshooting Headphone ImpedanceFrequency ResponseFAA Technical Standards Order Contact information To return your headset to Bose for repairOrdering parts and accessories

X specifications

Bose X is a premium series of aviation headsets designed specifically for pilots and aviation enthusiasts who demand high-performance audio while flying. Renowned for its exceptional noise cancellation, the Bose X stands out in the realm of aviation communication, providing a crucial advantage in noisy cockpit environments.

One of the most remarkable features of the Bose X is its Active Noise Cancelling (ANC) technology. This innovative system uses microphones both inside and outside of the earcups to detect and counteract ambient noise, resulting in a remarkably quiet listening experience. This feature is especially beneficial during flights where engine noise can be overwhelming, allowing pilots to focus on critical communication and navigation tasks without distractions.

The Bose X is equipped with proprietary TriPort speaker technology, which delivers unparalleled sound quality. This technology allows for a balanced audio experience, ensuring clear communication from both the aircraft’s avionics and any external devices. The headset also features a flexible boom microphone that offers excellent noise rejection, ensuring that the pilot's voice is transmitted clearly without picking up background noise.

Comfort is a key characteristic of the Bose X headset. The ear cushions are designed with soft, pressure-relieving material that contours to the wearer's ears, allowing for extended usage without discomfort. The lightweight design further enhances comfort, as it minimizes fatigue during long flights.

In addition to its primary features, the Bose X also includes user-friendly controls. The intuitive volume control allows pilots to adjust audio levels seamlessly without diverting attention from flying. There are also connections for Bluetooth-enabled devices, which enable pilots to enjoy music or communicate with co-pilots wirelessly.

Durability and reliability are paramount in aviation gear, and the Bose X does not disappoint. It is built with high-quality materials that can withstand the rigors of aviation environments. The headset also includes a detachable cable, making it easy to replace or upgrade as needed.

Overall, the Bose X delivers an exceptional combination of advanced technology, comfort, and durability, making it a preferred choice for many aviation professionals. Whether in small aircraft or large jets, the Bose X enhances the flying experience, facilitating clear communication and unparalleled audio quality in the skies.