Pilots who fly
both general aviation and helicopters no longer need to buy, carry, and store
two different headsets or use clumsy adaptors. The AC-747 converts easily by
plugging in either the general aviation straight cord or the helicopter coil
cord (both included with the headset). An optional general aviation coil cord is
also available. If you break a cable, no problem. Simply unplug and replace.
Powerful,
ultra-lite micro samarium cobalt speakers produce a richer, smoother frequency
response for both voice and music. The powerful magnetic core and diaphragm
provide high sensitivity and optimized response. The speaker, a thin lightweight
4/10th's of an ounce, reduces headset weight for added comfort. The advanced
speaker installation technique enhances audio performance, reduces annoying
inner ear cup vibrations and increases noise attenuation. Each ear dome also
features a fully adjustable volume control for truly customized performance.
Unique to the AC-747 PNR™, each speaker features a 2-pin
connector, allowing easy removal to change to 32 ohm speakers. This feature is
an advantage to pilots with hearing loss who require more volume.
The full
flex boom bends and holds any position easily for precise microphone placement.
The M-60 microphone with ceramic hybrid active filtering chip amplifies desired
voice signals while eliminating up to 75% of unwanted background noise so that
you can be heard more clearly even in the noisiest of environments.
Additionally, the preamp circuit is immune to environmental changes, will not
corrode, and has a much longer life than conventional PCB based products.
THE DETAILS
Durable copper wire with spiral shielding eliminates
RF interference while a polyurethane cover adds abrasion resistance and
flexibility. Additional features include gold plated plugs, high impact ABS ear
cups, easy-to-adjust stainless steel headband with easy thumbnut adjustment,
deluxe comfort head pad, acoustic foam ear seals, 100% cotton ear covers,
acoustic mic muff to protect against moisture and wind noise, plus a full
five-year factory warranty.
| Speaker |
Microphone |
| Impedance: 150 ohms/mono |
Type:
Electret noise canceling mic |
|
Frequency Range: 100-17,000 Hz |
Freq.
response: 300-8,000 Hz |
| Sensitivity: 101dB with 1mW input |
Mic source resistance: 220-2200 ohms |
| Volume
control attenuation: 23 dB |
Boom
type: Full flex boom |
| User
interchangeable speakers |
.... |
| |
|
| Mechanical |
Technical |
| Tensile
reinforced copper wiring |
NRR: 24
dB |
| Polyurethane insulation (UV safe) |
Hardware: Stainless steel |
| Shielded
detachable cords: |
Domes:
ABS high impact plastic |
| GA 5'
straight and Heli 6' coiled |
Weight:
13.9 oz. |
| Gold
plated plugs: mic .206" dia. |
|
| ..........................phn .250" dia. |
....
|