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airboeingbus
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What happened to the twin jack headphone socket on planes?

Mon Jun 26, 2017 7:37 pm

So back in the 90's up until about 5-6 years ago, most IFE systems had the twin jack headphone connector's that where proprietary for airliners. I even have a rather nice pair of noise cancelling headphones with said connector on them. Now it seems to be the standard 3.5mm headphone jack, why / when did the old ones get phased out?
 
LimaFoxTango
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Re: What happened to the twin jack headphone socket on planes?

Mon Jun 26, 2017 7:56 pm

I find those twin jacks were a pain because most people (including myself) had the standard single 3.5mm jack. I'm happy to see them go.
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Yflyer
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Re: What happened to the twin jack headphone socket on planes?

Mon Jun 26, 2017 8:07 pm

I always kind of wondered the opposite -- why did airlines use the twin jacks rather than the standard 3.5mm headphone jack in the first place? All the twin jacks seemed to accomplish was to make it more difficult for people to use their own headphones (they would work, but without an adapter you only got one sound in one ear). A cynic might suggest the purpose was to force people to buy the airline's headsets, but maybe there was a good reason for the twin jacks that just isn't obvious to me.
Last edited by Yflyer on Mon Jun 26, 2017 8:09 pm, edited 2 times in total.
 
ikramerica
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Re: What happened to the twin jack headphone socket on planes?

Mon Jun 26, 2017 8:08 pm

They weren't proprietary. Just that's where you see them most. Most other uses went away very early on.

The point was to isolate the ground for each side similar to a powered speaker cable. Stereo mini jacks share a ground. If anything fails inside, you get no sound. In a dual prong, if one side fails, at least you get some sound. Considering the abuse that passengers put on airline seats, that makes some sense.
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BartSimpson
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Re: What happened to the twin jack headphone socket on planes?

Mon Jun 26, 2017 8:14 pm

I always thought the twin-jack-thing was invented to prevent passengers from stealing the headphones because they couldn't be used on other devices. However, on KLM (I think) I once got a headphone where one jack could be folded in so I could use it with my smartphone.

Yes, I am a thief.
 
thegoldenargosy
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Re: What happened to the twin jack headphone socket on planes?

Mon Jun 26, 2017 8:21 pm

I thought the twin jack was so you had to use the airline's headsets and so that you wouldn't steal them. I found that my iPhone headphones worked if i put it one of the jacks.
 
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LotsaRunway
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Re: What happened to the twin jack headphone socket on planes?

Mon Jun 26, 2017 8:27 pm

I thought they were designed to be unique enough to get people to rent them in flight as a money maker. Still much better than the air pressure headsets they had before that.
 
smallvoyageur
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Re: What happened to the twin jack headphone socket on planes?

Mon Jun 26, 2017 9:08 pm

Could be worse, in they could use an Apple Lighting or a USB-C connector in all new aircraft. :lol:
 
32andBelow
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Re: What happened to the twin jack headphone socket on planes?

Mon Jun 26, 2017 9:15 pm

smallvoyageur wrote:
Could be worse, in they could use an Apple Lighting or a USB-C connector in all new aircraft. :lol:

No we are fine. We just watch on our personal HD screens, not the airline 180P
 
EIDL
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Re: What happened to the twin jack headphone socket on planes?

Mon Jun 26, 2017 9:18 pm

BartSimpson wrote:
I always thought the twin-jack-thing was invented to prevent passengers from stealing the headphones because they couldn't be used on other devices. However, on KLM (I think) I once got a headphone where one jack could be folded in so I could use it with my smartphone.

Yes, I am a thief.


Those KLM headphones are non-return items (the cheap ones for Y anyway)
 
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767333ER
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Re: What happened to the twin jack headphone socket on planes?

Mon Jun 26, 2017 9:28 pm

BartSimpson wrote:
I always thought the twin-jack-thing was invented to prevent passengers from stealing the headphones because they couldn't be used on other devices. However, on KLM (I think) I once got a headphone where one jack could be folded in so I could use it with my smartphone.

Yes, I am a thief.

This was the same with Air Canada as some planes in the fleet had the dual prong plugs and others had the standard one.
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VS239
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Re: What happened to the twin jack headphone socket on planes?

Mon Jun 26, 2017 9:46 pm

Flew HK Airlines (HX) HKG-AKL and back recently and those A330 still have them.
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TVNWZ
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Re: What happened to the twin jack headphone socket on planes?

Tue Jun 27, 2017 1:05 am

BartSimpson wrote:
I always thought the twin-jack-thing was invented to prevent passengers from stealing the headphones because they couldn't be used on other devices. However, on KLM (I think) I once got a headphone where one jack could be folded in so I could use it with my smartphone.

Yes, I am a thief.


They do make adapters so you can use those almost on any device. Radio Shack (RIP) had any adaperter you needed.
 
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LoftleidirDC8
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Re: What happened to the twin jack headphone socket on planes?

Tue Jun 27, 2017 1:08 am

Sadly, SQ still uses them. The adaptor I bought before I flew them to DPS didn't work either and I wasn't about to spend any more cash onboard for their adaptor. Such a PITA.
 
drdisque
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Re: What happened to the twin jack headphone socket on planes?

Tue Jun 27, 2017 2:07 am

The air pressure headphones were so awful and stupid.

I loved that as a kid, if my parents didn't pay to rent the headsets/they weren't complimentary, I could raise the armrest to ear-level stick my ear over the holes, and hear the audio.
 
Bavd
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Re: What happened to the twin jack headphone socket on planes?

Tue Jun 27, 2017 7:34 am

smallvoyageur wrote:
Could be worse, in they could use an Apple Lighting or a USB-C connector in all new aircraft. :lol:


Oh no! Please please please don't let apple read this.......
 
Noshow
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Re: What happened to the twin jack headphone socket on planes?

Tue Jun 27, 2017 8:35 am

The pneumatic one had to be sold for a fee in Ecomony. IIRC that was some IATA rule back then. Oh those 741 days going transatlantic with ONE MOVIE on ONE SCREEN for everybody.
 
Sancho99504
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Re: What happened to the twin jack headphone socket on planes?

Tue Jun 27, 2017 9:34 am

You can still find the twin jacks on non-refurbed DL 767-300ers.....had the amazing luck of not being able to use my headphones on a couple of recent DL flights because they had the 2 plugs....didn't think I needed an adapter anymore
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FrancisBegbie
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Re: What happened to the twin jack headphone socket on planes?

Tue Jun 27, 2017 9:46 am

Noshow wrote:
The pneumatic one had to be sold for a fee in Ecomony. IIRC that was some IATA rule back then. Oh those 741 days going transatlantic with ONE MOVIE on ONE SCREEN for everybody.


Oh, not just 741. I remember all too well the 744s of 10-12 years ago. Rubber-necking upward to watch Mr Bean and a non-offensive Hugh Grant movie....
 
Noshow
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Re: What happened to the twin jack headphone socket on planes?

Tue Jun 27, 2017 9:48 am

Those 747-400 had at least "modern" tubes. But the 747-100 had one RGB-Screen almost like a diascope projector.
 
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c933103
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Re: What happened to the twin jack headphone socket on planes?

Tue Jun 27, 2017 9:50 am

Those twin jacks are probably around before single jack stereo version exists...
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timpdx
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Re: What happened to the twin jack headphone socket on planes?

Tue Jun 27, 2017 9:52 am

Just flew an Air China 789, and they were twin jacks. Why they were installed on a new airframe like that, I have no idea. But it's China, there may be no explanation.
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SomebodyInTLS
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Re: What happened to the twin jack headphone socket on planes?

Tue Jun 27, 2017 12:24 pm

LoftleidirDC8 wrote:
Sadly, SQ still uses them. The adaptor I bought before I flew them to DPS didn't work either and I wasn't about to spend any more cash onboard for their adaptor. Such a PITA.


Can confirm for 2015 at any rate. No big deal - plenty of shops in Changi where you can buy the adapters... ;)
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akoma
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Re: What happened to the twin jack headphone socket on planes?

Tue Jun 27, 2017 4:20 pm

FrancisBegbie wrote:
Noshow wrote:
The pneumatic one had to be sold for a fee in Ecomony. IIRC that was some IATA rule back then. Oh those 741 days going transatlantic with ONE MOVIE on ONE SCREEN for everybody.


Oh, not just 741. I remember all too well the 744s of 10-12 years ago. Rubber-necking upward to watch Mr Bean and a non-offensive Hugh Grant movie....


China Southern A320s are still using these pneumatic ear tubes on the SIN CAN vv sectors. Travelled on them recently when going to LAX. Kept one of those ear tubes on my return to SIN, as these things are getting pretty rare.
 
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akoma
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Re: What happened to the twin jack headphone socket on planes?

Tue Jun 27, 2017 4:27 pm

timpdx wrote:
Just flew an Air China 789, and they were twin jacks. Why they were installed on a new airframe like that, I have no idea. But it's China, there may be no explanation.


Not sure if it has anything to do with China. As others have mentioned, SQ (and other airlines) are still using these twin jacks. All SQ aircraft types still feature the twin jacks, in fact many SQ seats have triple jacks (even in EY), with the 3rd jack being the power source for noise cancelling headsets.
 
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OneSexyL1011
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Re: What happened to the twin jack headphone socket on planes?

Tue Jun 27, 2017 4:37 pm

Gosh, I remember the headphones that used hollow tubes of air instead of wires. Hahaha
 
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Jawaiiansky66
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Re: What happened to the twin jack headphone socket on planes?

Tue Jun 27, 2017 7:46 pm

The last time I was given a twin jack earphone ( a few years ago), you could pull off the twin jack and use the single jack end underneath. I believe the airline was C3.
 
dfwneedsqf
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Re: What happened to the twin jack headphone socket on planes?

Tue Jun 27, 2017 7:56 pm

Singapore Airlines still uses them and their earbuds in economy are not so nice. Experienced that in April on a trip to Japan on a recently refurbed 77W
 
jackieman27
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Re: What happened to the twin jack headphone socket on planes?

Tue Jun 27, 2017 8:02 pm

Emirates A380 Business has them
 
ual777newpaint
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Re: What happened to the twin jack headphone socket on planes?

Tue Jun 27, 2017 8:46 pm

Sancho99504 wrote:
You can still find the twin jacks on non-refurbed DL 767-300ers.....had the amazing luck of not being able to use my headphones on a couple of recent DL flights because they had the 2 plugs....didn't think I needed an adapter anymore



Was this a domestic bird? How recently are we talking, here? I haven't seen a dual jack setup on a DL 767 in years. There are only 3 non-ER frames left, and I was under the impression that all of the -300ERs had been refurbished.
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32andBelow
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Re: What happened to the twin jack headphone socket on planes?

Tue Jun 27, 2017 8:52 pm

jackieman27 wrote:
Emirates A380 Business has them

Well thats just comically stupid if thats true.
 
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TWA772LR
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Re: What happened to the twin jack headphone socket on planes?

Wed Jun 28, 2017 1:54 am

I hated the 2 prong jacks. I NEVER had a flight where the headphones worked correctly with them. If I did get sound out of both speakers it was for a few seconds, and then it went back to 1 speaker with barely audible sound.

They are in aviation Hell where they belong.
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Sancho99504
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Re: What happened to the twin jack headphone socket on planes?

Wed Jun 28, 2017 3:06 am

ual777newpaint wrote:
Sancho99504 wrote:
You can still find the twin jacks on non-refurbed DL 767-300ers.....had the amazing luck of not being able to use my headphones on a couple of recent DL flights because they had the 2 plugs....didn't think I needed an adapter anymore



Was this a domestic bird? How recently are we talking, here? I haven't seen a dual jack setup on a DL 767 in years. There are only 3 non-ER frames left, and I was under the impression that all of the -300ERs had been refurbished.


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