View Full Version : Impedance of Headsets
Agaricus bisporus
28th Sep 2000, 17:57
Having failed to find a decent lightweight headset that works I wondered if a boom mike could be combined with a walkman style headphone.
Can any Pruner advise on the impedance of a Hi-Fi headset and if it is/could be made compatible with an aircraft audio system.
Avro'ansome
28th Sep 2000, 18:40
Not exactly the best headset in the business, but try a TELEX Airman 750.
It is basically a 'walkman' style lightweight headset.
It comes complete with an adjustable gain mic, allowing you to set it up for use with a wide varity of other headsets on an int. system.
Our company use this type as standard, and it would be ideal in a low noise cockpit, however in a 146 I find something like a sennheiser, although heavier, overall more comfortable.
Try Transair's website for price ect..
Capt Pit Bull
30th Sep 2000, 05:10
When you say 'fail to find .... that works' are you talking about getting it to work in a particular a/c type? or with particular other type of headset?
What symptons do you have?
I'm no expert on this but I believe that most compatability problems relate to the impedance of the microphone, rather than the headset.
So if you take a hifi headset, and then add a boom mike, you may not solve the problem.
CPB
Agaricus bisporus
30th Sep 2000, 19:09
PB, I did not make myself clear. I dont like the Telex/Sennheiser lightweights because although they have no noise attenuation they seem to inhibit speech sufficiently to force me to were them one ear on/one off. Our company sadly does not use the intercom.
I have seen a Sony headset that is clearly based on the design of my Hi-fi walkman headphones which I am sure would be ideal if they could be made to work with an aircraft comm system. Hence my specific inquiry about impedances.
Dyna Soar
4th Oct 2000, 21:41
Sony already does make an aviation version of the headset you mentioned (and has done for several years) so impedance shouldn't be a problem. Its model No is DR6010 and I believe that one of the major airlines (JAL perhaps ?) has issued it to flight crew for some time now. Have a look at www.marvgolden.com (http://www.marvgolden.com) although there are quite a few other companies around that will supply it (this just hapens to be the first I found).
please please please talk to yr avionics/radio engineer for the line or tech services to ensure that yr proposed headset is approved for use on yr aircraft