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08-08-2019, 01:03 PM
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Join Date: Sep 2016
Location: Lafayette, CO
Posts: 15
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Does the LEMO have better sound quality?
I'm considering getting a Bose A20 to replace one of my X's that broke. I am planning on using it multiple aircraft so I will need to buy an adapter as well. My question is, I do have the Bose LEMO connector in my RV, does the LEMO provide better sound quality over the traditional dual plug? Or, is it's only benefit that I don't need batteries to run the ANR?
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Frank
RV-6a KEIK
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08-08-2019, 01:26 PM
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Join Date: Jun 2010
Location: Sunman, IN
Posts: 2,343
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Lemo
The way I understand it, the only difference is no batteries; the electronics are the same...
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Bob
Aerospace Engineer '88
RV-10
Phase I as of 12-02-2020
Dues+ Paid 2020,...Thanks DR+
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08-08-2019, 01:43 PM
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Join Date: May 2013
Location: Sherman, CT
Posts: 891
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I've got 2 A20 headsets, standard plug on pilots side and Lemo on right side. No difference between them.
__________________
Jake
RV6 #20477 completed 1991 sold.
RV7 #72018 N767T first flight 11/21/2017 350+ hrs.
IO-360M1B MT 3 blade, Dual AFS 5600 QUICK Panel.
Manual Flaps. (KOXC)Oxford, CT, (0NY0)North Creek, NY.
1941 J3 Cub skis,floats.
2020 dues gladly paid.
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08-08-2019, 09:54 PM
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Join Date: Oct 2007
Location: St-Jerome,Quebec,Canada
Posts: 1,147
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Bose A-20 Sounds Quality
While we're on the subject of the A-20 Sound Quality,
A friend and I had our A-20 Bose overhaul by Bose in Oshkosh where they replaced the control module with the new Bluetooth one that has the Music,tel and a couple other things capabilities and today I got a call from him from his airplane and I could heard a lot of background noise vs before when there was no noise at all..
Did any of you noticed the same thing ?
Is this normal or is there an adjustment to be done to fix that ??
Thanks
Bruno
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08-09-2019, 06:05 PM
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Join Date: Mar 2008
Location: Clarksboro, NJ
Posts: 890
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Same sound, but what an improvement running off of ship's power VS batteries! The only down side is when you jump in your buddy's plane and realize you can't plug-in.
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08-09-2019, 09:08 PM
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Join Date: Jan 2005
Location: NC25
Posts: 3,608
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Quote:
Originally Posted by pa38112
Same sound, but what an improvement running off of ship's power VS batteries! The only down side is when you jump in your buddy's plane and realize you can't plug-in.
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One only needs a adapter cable and to add batteries to the battery box when using a Bose A20 LEMO headset in an aircraft with the two standard GA plugs.
__________________
Gary A. Sobek
NC25 RV-6 Flying
3,400+ hours
Where is N157GS
Building RV-8 S/N: 80012
To most people, the sky is the limit.
To those who love aviation, the sky is home.
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08-10-2019, 05:00 PM
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Join Date: May 2013
Location: Sherman, CT
Posts: 891
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You are correct an adapter plug will convert a LEMO headset to GA plugs, however the LEMO control box does not have a provision for batteries, therefore you will lose the ANR feature.
__________________
Jake
RV6 #20477 completed 1991 sold.
RV7 #72018 N767T first flight 11/21/2017 350+ hrs.
IO-360M1B MT 3 blade, Dual AFS 5600 QUICK Panel.
Manual Flaps. (KOXC)Oxford, CT, (0NY0)North Creek, NY.
1941 J3 Cub skis,floats.
2020 dues gladly paid.
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08-10-2019, 05:12 PM
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Join Date: Jun 2015
Location: Woking UK
Posts: 58
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My A20 with LEMO connector does accept batteries in the control module so when I fly a PA28 with the GA adaptor cable I still have ANR.
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08-10-2019, 05:12 PM
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Join Date: Jun 2008
Location: San Jose, CA
Posts: 117
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Use one of these to go from LEMO to twin plug:
https://www.sportys.com/pilotshop/le...g-adapter.html
It holds a 9v battery to provide ANR power.
__________________
Steve Allison
RV-6A - sloooowwww build
First flight - 3/8/14
Phase II - 5/19/14
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