David Clark X11 Headset-Best Price on the Web|SkyGeek.com

Product Highlights

• The X11 has advanced comfort features that will guarantee a fatigue-free flying experience
• Extremely durable lightweight materials
• Ear phones are Hi-fidelity stereo and inclide dual volume control
• Dual voice coil electronic noise canceling technology is NEW!
• Communication clarity with flex boom from the M77 microphone

Powering the Model X11 Unit Power the unit by turning the DC Power ON/OFF switch to the #ON’ position (See Fig. 2). Flashing Green Light: indicates ENC is activated and battery capacity is fine. Flashing Red Light: indicates power low and batteries in need of replacement. Approximately two (2) hours remaining.

David Clark X11 Series Control Unit Features Fail-Safe Microphone. If batteries are dead or the unit is turned off, microphone will function when connected to aircraft intercom. The X11 headset is shipped with the Auto Shutoff feature disabled. In this mode, the headset will function whenever the 'ON/OFF' switch is set to 'ON'. Auto Shutoff can be enabled via a small switch located under the batteries The LED will flash GREEN (solid GREEN  for Panel mount) or RED when headset is activated in ENC mode All features continue to function in auto shut-off mode under the following conditions         - Headset is connected to the aircraft intercom OR         - Cell phone is connected and active   3.  Auxiliary Audio (Interface to cell phone or stereo source) Control Unit features a 3.5mm, 4-contact jack to accept external audio inputs          Note: Always attach Gray connector to the Control Unit and Black connector to Audio Source. -  A Choice of any of the three provided custom cords allows interface to standard stereo sources (MP3, IPOD or CD players) and cell phones.          Note: Volume must be adjusted by external audio source and is NOT controlled by volume controls on headset. -   Cell phone interface via standard 2.5mm, 3-contact, stereo plug (right angle) OR 2.5mm, 4-contact plug (right angle). (See cell phone operating instructions to select the appropriate cable for your phone.) Cell phone audio is supplied to both ear-phones, independent of stereo/mono select switch on control unit.   4.  External Audio Management Aux/stereo audio is muted upon receipt of comm. audio to ensure integrity and clarity of voice communications. Any voice on the intercom will cause external audio to mute during the conversation and approximately 1-2 seconds upon conclusion of the conversation.   5.  Cell Phone Interface Cell phone conversation does not mute during receipt of Comm. Audio. All intercom parties hear cell phone outbound audio but cell phone recipient's voice is heard only by the headset connected to the cell phone. Sidetone is present when connected to aircraft intercom. Sidetone may not be (dependent on cell phone functionality present when using the headset and cell phone when not attached to the aircraft intercom.   6.  X11 Series headsets are shipped with auto-shutoff in the 'DISABLED' position. For battery power (X11 Model) operation, switching the auto-shutoff to the 'ENABLED' position will shut down the control unit if ENC power is accidentally left 'ON' after flight to prevent battery power drain. For permanent panel mount (X11P Model) operation, the auto-shutoff should be switched to the 'ENABLED' position to prevent battery power drain after the aircraft power has been turned off.

Electronic Noise-Canceling (ENC) How it Works. The X11 headset features dual voice coil Electronic Noise-Canceling (ENC) technology [Patents Pending] designed for pilots of aircraft which generate noise at lower frequencies. ENC technology uses an electronically produced signal to cancel the offending noise. Once the ENC is activated from the X11 control’s on/off switch, low frequency noise is sensed and an opposing signal of the same sound level is generated, resulting in the cancellation of noise before it reaches the ear. With low frequency noise canceled, you’ll hear essential communications clearly and with less strain. Improved audio comfort leads to alert and safer flying. Fail Safe: An important feature of X11 ENC technology is true "fail-safe" operation. Dual voice coils are electronically independent so that no interruption of communication can result from failure of the ENC system or its power source.

• Personalized fit provided by Intelligently engineered, lowforce, dual-hinge,suspension assembly with optimum articulation
• Headband is super-lightweight and for maximum strength and durability is handcrafted from genuine carbon fiber
• Longterm comfort is provided by the low-profile, vented head pad which eliminates hot spots
• Gel-filled ear seals that are left/right contoured, fabric-faced, and super-soft, ensure maximum comfort and proper sealing
• Stereo/mono switchable dual volume controls for high fidelity stereo ear phones
• Want to reduce fatigue? The new dual voice coil electronic noise-canceling (ENC) technology will help!
• Two AA batteries (average life of 30 hours) power the sleek, lightweight control unit which is monitored by a power indicator light with auto-shutoff capability
• Three accessory cords provided for cell phone, Aux./music input
• Latest M77 noise-canceling microphone provides one-touch positioning flex boom for clear, crisp communications
• David Clark headset bag included with purchase of every X11 headset
• Compact storage provided by the modern design

• What are the new features of the X11?

There are many but some of the main features include it’s low-force suspension assembly for lightweight comfort, powered by 2 AA Batteries (avg. 30 hrs.) with auto shut-off, Cell Phone/Aux. Music input, super- soft fabric faced contoured gel ear seals, streamlined low-profile vented head pad and a modern design allowing compact storage in a uniquely designed DC Headset Bag.

• I'm experiencing some unwanted noise. What can I do?

The most common cause of this complaint has proven to be improper ear seal positioning. Unlike most other David Clark products, the contoured ear seals on the X11 are left/right specific. Therefore, if you rotate the microphone boom 180 degrees to accommodate your preference, it will be necessary to also switch your ear seals from side to side. This will insure proper sealing and reduce to possibility of unsatisfactory performance.

• How much does the X11 weigh?

The X11 Headset weighs in at just 12 ounces.

• What is the Warranty?

The X11 like all David Clark Aviation Headsets comes with a 5 year warranty.

• Is the X11 compatible with passive headsets being used in the same aircraft?

Yes, the X11 is compatible and will not create any degradation in communication.

• What is the noise cancellation performance of the X11?

The X11 has appreciable passive attenuation and exceptional electronic noise cancellation (17-22dB) that has been verified through extensive flight testing in numerous fixed wing aircraft. The X11's performance is also backed by our 30 Day Money Back Guarantee.

• What will happen if I lose battery power?

An important feature of the X11 ENC Technology is it’s true “fail-safe”
operation. Dual voice coils are electronically independent so that no interruption of communication can result from failure of the ENC system or it’s power source.
(Note: Cell Phone/Aux input features will not operate without battery power)

• What spare parts are available for the X11?

Super-Lightweight Head Pad
Soft Fabric-Faced Contoured Gel Ear Seals
M-77 Microphone
Foam Microphone Protector

• How can I adapt the X11 to a Motorola Razr?

You will need to adapt the USB-like connector on the Razr to a 2.5mm jack, then use the David Clark supplied 2.5mm cord to connect it to the headset. There are adapters available from third party vendors at the following links. (Note: Use at your own risk. David Clark Company does not warrant or guarantee these products and will not be responsible for their function or any damage incurred through their use.)

• What direction do I turn the Volume Controls?

Since the boom assembly can rotate 180 degrees, it enables you to plug in without having the cord cross in front of you during the flight... When the headset is on your head and the mic./boom assembly and comm. cord are on your left side (typical pilot position in left seat) you rotate both controls forward to increase volume... If you are seated in the right seat (co-pilot or passenger in right seat) and the mic./boom assembly and comm. cord is on your right side then the opposite applies... Rotate the  controls back to increase volume. note:  If you switch the boom from side to side, be sure to switch the contoured ear seals at the same time to maintain optimum ENC performance.

• Is the X11 Headset TSO/FAA approved?  

The approval process is underway and is expected to be approved during the first quarter of 2007. Please check back for updates.