Headsets
Join Date: Nov 2001
Location: Land of the Brave
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Have to agree with your comment re the Peltors.
I ended up buying a BoseX with a High impedance mike for use in Squirrels and an old DauphinC, and had another low impedance mike and power lead made up that works in my usual Dauphin N2.
If you find that you have a common system between the two types you will be in luck!!!
If not, then you may have problems with a Peltor - I don't think the mics are that easy to change - The Bose is a two minute job to undo two screws and swap the complete assembly - plus you get ANR !!!
Cheers
I ended up buying a BoseX with a High impedance mike for use in Squirrels and an old DauphinC, and had another low impedance mike and power lead made up that works in my usual Dauphin N2.
If you find that you have a common system between the two types you will be in luck!!!
If not, then you may have problems with a Peltor - I don't think the mics are that easy to change - The Bose is a two minute job to undo two screws and swap the complete assembly - plus you get ANR !!!
Cheers
Join Date: Nov 2001
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The BoseX will work as long as you know whether your particulat aircraft is fitted with a high or low impedance i/c system and you buy the appropriate headset.
Not all aircraft types are fitted with the same avionics fit so I think it's impossible to say S61Ns are all high impedance or are all low impedance.
Not all aircraft types are fitted with the same avionics fit so I think it's impossible to say S61Ns are all high impedance or are all low impedance.
Join Date: Apr 2006
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hm... until now I never heard of any impedance differences in headsets vs. avionics; neither was anything mentioned when I bought my BoseX.
May somebody please give me advice how the impedance affects the quality and what do I hear (or not hear) when the wrong impedances are matched? Thanks!
Phil
P.S.: I do had some funny half second long low freq. tone in my headset - at that very second the mike as well as the the radio was cut off! Not so nice if that happens while ATC is giving u traffic adice!
Only happend a few times after I got the headset and not for the last 25 hours or so.
May somebody please give me advice how the impedance affects the quality and what do I hear (or not hear) when the wrong impedances are matched? Thanks!
Phil
P.S.: I do had some funny half second long low freq. tone in my headset - at that very second the mike as well as the the radio was cut off! Not so nice if that happens while ATC is giving u traffic adice!
Only happend a few times after I got the headset and not for the last 25 hours or so.
Join Date: Oct 2003
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That must be a European thing - I've never seen a low-impedance system in any civilian aircraft in the US. As for the tone and cutoff, that sounds like a short in the headset somewhere, or else a fault in the aircraft avionics system.
Join Date: Oct 2003
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About the impedance mismatch - if you use a low-impedance headset in a high-impedance aircraft, the symptoms will be relatively low volume in the earphones, and your transmissions will be very weak, unreadable except at very short range, on the order of a few hundred feet. I've tried that, using a military headset in a civilian helicopter, and it didn't work very well. Carter Engineering sells (or at least used to) adapters for the mike, which converts the standard 8-ohm military mike to 300 ohms, and it works ok. With that conversion, a low-impedance headset is usable in a civilian helicopter. I never tried using a high-impedance headset in a military helicopter, so I can't say for sure what the results would be, but I would expect about the same thing. The only thing that really has to change is the mike impedance, because the earphones will work well enough to use, although the volume will be relatively low. I've built my own headset, using standard lightweight stereo earphones, and resorted to buying an audio transformer from Radio Shack which matched the earphone impedance well enough to be very usable. Without it, the volume was very low.
Join Date: Aug 2007
Location: Australia
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Sennheiser HME-120
Hi all,
I've got a Sennheiser HME-120 that I bought, but for some reason the microphone refuses to work in several of the helicopters i've tried it in. I've tried it in several R22's, an R44 and a JetRanger 206. I can hear audio fine, but the mic is just dead.
It has only worked in one of the R22's i've tried which was an earlier Alpha model.
Has anyone else had any experience with this headset?
Thanks!
I've got a Sennheiser HME-120 that I bought, but for some reason the microphone refuses to work in several of the helicopters i've tried it in. I've tried it in several R22's, an R44 and a JetRanger 206. I can hear audio fine, but the mic is just dead.
It has only worked in one of the R22's i've tried which was an earlier Alpha model.
Has anyone else had any experience with this headset?
Thanks!
Join Date: Jul 2002
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Are you certain it has a high impedance setup? If you try a low impedance headset (such as military stuff) in a civilian setup, the mic doesn't work... I seem to remember my low imp one working on one or two civ helicopters but not all of em.
Could be a bad part too, but if it works in some but not all, that would be my best guess. I believe they make adapters out there, tho it might set you back a few bones.
-Mike
Could be a bad part too, but if it works in some but not all, that would be my best guess. I believe they make adapters out there, tho it might set you back a few bones.
-Mike
Join Date: Aug 2007
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Hi Mike,
Thanks for the info. According to Sennheiser's technical data the headset has "150 Ohm-mono/300 Ohm-stereo".
Its a super comfy headset, but I may just swap it for something else. Are the Bose headsets any good?
Cheers,
Jeremy
Thanks for the info. According to Sennheiser's technical data the headset has "150 Ohm-mono/300 Ohm-stereo".
Its a super comfy headset, but I may just swap it for something else. Are the Bose headsets any good?
Cheers,
Jeremy
Join Date: Feb 2003
Location: Germany
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I bought a Bose-X after a couple of flight lessons and the money was really worth it. Flying without it is a totally different experience and they are really comfortable to wear too.
) on R22 and R44. Ok, still learning, but now i am allowed to do so without an FI next to me....
Join Date: May 2007
Location: Wicklow
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I got a Bose X series to after a few hours training...... Best $1K i ever spent........
One of the instructors at the airfield, droped his and ran over it in the golf cart, was a bag of bita after that, sent all the peices back to bose and they sent him a bran new one for $175.......
Now thats worth it!!!!!
One of the instructors at the airfield, droped his and ran over it in the golf cart, was a bag of bita after that, sent all the peices back to bose and they sent him a bran new one for $175.......
Now thats worth it!!!!!
Join Date: Nov 2006
Location: UK
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I went for the Clarity Aloft ($450). No need to get the TSO version. I found that in the Jetranger the sound reduction was better than the Bose X (yes I did check the ANR was working). I find that the lack of weight and the clamping force (even the Bose hurt after about 90 minutes) make it feel much more natural. I've had my head clear out the door with an external load and they felt glued to my head.
The only disadvantage that I've had is that they take about 30 seconds to put on to really achieve the good sound reduction.
Feel free to PM me.
Bobby
The only disadvantage that I've had is that they take about 30 seconds to put on to really achieve the good sound reduction.
Feel free to PM me.
Bobby
Join Date: Jan 2008
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I've used a David Clark H10-56HXL with ANR since 2005, I love it - built tough, great passive NR when the battery dies etc, it's a great working headset. Regular H10-56 without ANR is $300, with ANR it goes up to $700.