Help with wiring colors on old headphones

P

Patrick

Guest
I have some vinatge headphones (Sennheiser HD424) and want to attach a new
plug.

Which color wires are the positive ones?

The colors in one of the leads are red & blue and in the other lead black &
yellow. (No wire is used as screening - there's just two wires in each
lead.)
 
"Patrick"
I have some vinatge headphones (Sennheiser HD424) and want to attach a new
plug.

Which color wires are the positive ones?

The colors in one of the leads are red & blue and in the other lead black
&
yellow. (No wire is used as screening - there's just two wires in each
lead.)
Click to expand...

** Stick the damn phones on your fat head and connect pairs of wires to a AA
battery until you hear a click.

Now you have your two pairs of wires.

Wire them to a plug any way around you like and connect the same AA to the
common and both positives at the same time.

If the click seems to comes from right inside your head - game over.

If you need more explanation - you do not deserve it.



...... Phil
 
On 12:44 14 May 2011, Phil Allison wrote:

"Patrick"

I have some vinatge headphones (Sennheiser HD424) and want to attach a
new
plug.

Which color wires are the positive ones?

The colors in one of the leads are red & blue and in the other lead
black & yellow. (No wire is used as screening - there's just two
wires in each lead.)


** Stick the damn phones on your fat head and connect pairs of wires
to a AA battery until you hear a click.

Now you have your two pairs of wires.

Wire them to a plug any way around you like and connect the same AA to
the common and both positives at the same time.

If the click seems to comes from right inside your head - game over.

If you need more explanation - you do not deserve it.

..... Phil
Click to expand...
The four wires are already grouped as two pairs, so we already know which
two wires go together.

I want to get the phasing right (even for headphones). I need to know
which color wire in each pair is the positive.

Are you familiar with decoding these red & blue and black & yellow
headphone wires?
 
In article <Xns9EE57F121FAB96AD265@69.16.185.252>,
Patrick <invalid@invalid.com> wrote:
I have some vinatge headphones (Sennheiser HD424) and want to attach a
new plug.

Which color wires are the positive ones?

The colors in one of the leads are red & blue and in the other lead
black & yellow. (No wire is used as screening - there's just two wires
in each lead.)
Click to expand...
Black and blue are the commons. Not that it would make any difference if
you commoned red and yellow.

You can check for sure by unplugging the leads from each actual earpiece
(red and blue plugs), but be careful to pull on the actual plug only. The
pins are of slightly different sizes.

Hope you have a source of the muffs for these - they crumble to dust quite
quickly.

--
*Am I ambivalent? Well, yes and no.

Dave Plowman dave@davenoise.co.uk London SW
To e-mail, change noise into sound.
 
On 14/05/2011 12:54, Patrick wrote:
On 12:44 14 May 2011, Phil Allison wrote:


"Patrick"

I have some vinatge headphones (Sennheiser HD424) and want to attach a
new
plug.

Which color wires are the positive ones?

The colors in one of the leads are red& blue and in the other lead
black& yellow. (No wire is used as screening - there's just two
wires in each lead.)


** Stick the damn phones on your fat head and connect pairs of wires
to a AA battery until you hear a click.

Now you have your two pairs of wires.

Wire them to a plug any way around you like and connect the same AA to
the common and both positives at the same time.

If the click seems to comes from right inside your head - game over.

If you need more explanation - you do not deserve it.

..... Phil

The four wires are already grouped as two pairs, so we already know which
two wires go together.

I want to get the phasing right (even for headphones). I need to know
which color wire in each pair is the positive.
Click to expand...
No you don't need to know it. It will be abundantly clear if you have
the phase in one ear wrong by 180 degrees - unless that is you are deaf.
Are you familiar with decoding these red& blue and black& yellow
headphone wires?
Click to expand...
I would hazard a guess red, yellow are positive and blue, black
negative. But why didn't you make a note of where the cables were
connected when you took the original apart?

There are only four wires as two trivially distinct pairs - the worst
that can happen is you need to flip a pair if you choose incorrectly.

Regards,
Martin Brown
 
"Patrick"
Phil Allison wrote:
"Patrick"

I have some vinatge headphones (Sennheiser HD424) and want to attach a
new plug.

Which color wires are the positive ones?

The colors in one of the leads are red & blue and in the other lead
black & yellow. (No wire is used as screening - there's just two
wires in each lead.)


** Stick the damn phones on your fat head and connect pairs of wires
to a AA battery until you hear a click.

Now you have your two pairs of wires.

Wire them to a plug any way around you like and connect the same AA to
the common and both positives at the same time.

If the click seems to comes from right inside your head - game over.

If you need more explanation - you do not deserve it.



The four wires are already grouped as two pairs, so we already know which
two wires go together.

I want to get the phasing right (even for headphones). I need to know
which color wire in each pair is the positive.
Click to expand...

** I just gave the the answer - you fucking idiot.



..... Phil
 
On 13:22 14 May 2011, Martin Brown wrote:

On 14/05/2011 12:54, Patrick wrote:
On 12:44 14 May 2011, Phil Allison wrote:


"Patrick"

I have some vinatge headphones (Sennheiser HD424) and want to
attach a new plug.

Which color wires are the positive ones?

The colors in one of the leads are red& blue and in the other lead
black& yellow. (No wire is used as screening - there's just two
wires in each lead.)


** Stick the damn phones on your fat head and connect pairs of wires
to a AA battery until you hear a click.

Now you have your two pairs of wires.

Wire them to a plug any way around you like and connect the same AA
to the common and both positives at the same time.

If the click seems to comes from right inside your head - game
over.

If you need more explanation - you do not deserve it.

..... Phil

The four wires are already grouped as two pairs, so we already know
which two wires go together.

I want to get the phasing right (even for headphones). I need to
know which color wire in each pair is the positive.

No you don't need to know it. It will be abundantly clear if you have
the phase in one ear wrong by 180 degrees - unless that is you are
deaf.

Are you familiar with decoding these red& blue and black& yellow
headphone wires?

I would hazard a guess red, yellow are positive and blue, black
negative. But why didn't you make a note of where the cables were
connected when you took the original apart?

There are only four wires as two trivially distinct pairs - the worst
that can happen is you need to flip a pair if you choose incorrectly.

Regards,
Martin Brown
Click to expand...
Years ago someone wired up these headphones to a 1/4 inch plug and they
they say they don't know what polarity meant. There's no point following
their clueless wiring.

Out of phase headphone transducers create a far more subtle adverse
effect than that noticed in loudspeakers, so it is not something
immediately evident by A-B testing. Nor is testing necessary if someone
here knows what the color coding is.
 
"Patrick = another PITA Jerk
Out of phase headphone transducers create a far more subtle adverse
effect than that noticed in loudspeakers, so it is not something
immediately evident by A-B testing.
Click to expand...

** That is 100% fucking BULLSHIT !!!!!!!!!

With any mono signal, the difference is HUGE.

Do exactly what I said you PITA moron.

If the click seems to comes from right inside your head - game over.

If you need more explanation - you do not deserve it.



..... Phil
 
On 13:07 14 May 2011, Dave Plowman (News) wrote:

In article <Xns9EE57F121FAB96AD265@69.16.185.252>,
Patrick <invalid@invalid.com> wrote:
I have some vinatge headphones (Sennheiser HD424) and want to attach
a new plug.

Which color wires are the positive ones?

The colors in one of the leads are red & blue and in the other lead
black & yellow. (No wire is used as screening - there's just two
wires in each lead.)

Black and blue are the commons. Not that it would make any difference
if you commoned red and yellow.

You can check for sure by unplugging the leads from each actual
earpiece (red and blue plugs), but be careful to pull on the actual
plug only. The pins are of slightly different sizes.

Hope you have a source of the muffs for these - they crumble to dust
quite quickly.
Click to expand...
You must know the headphones well because I had long forgotten the leads
plugged into the earpieces. I didn't realize the mini plugs were keyed to
go in only one way around. With that info I could have continuity tested
the colored leads to each of the larger pins on the plugs but you saved me
doing that becauase you have given me the color coding too. Thank you.

You're right about the muffs crumbling. I threw them out. First I'll see
what the cans sound like now and then decide if it's worth getting new
muffs.

It's been instructive to see how many people misunderstood what the
original question was trying to solve and they gave obviously useless, if
not misleading, advice. It's never been the same since Eternal September.
 
On 13:49 14 May 2011, Phil Allison wrote:

"Patrick = another PITA Jerk

Out of phase headphone transducers create a far more subtle adverse
effect than that noticed in loudspeakers, so it is not something
immediately evident by A-B testing.


** That is 100% fucking BULLSHIT !!!!!!!!!

With any mono signal, the difference is HUGE.
Click to expand...
There is no phase cancellation like there is for speaker sounds because the
sound from each headphone transducer is interfereing with the other.

Your lack of knowledge is made all the more lamentable by the unwarranted
self-assurance with which you conduct yourself.

Do exactly what I said you PITA moron.

If the click seems to comes from right inside your head - game over.

If you need more explanation - you do not deserve it.

.... Phil
Click to expand...
Your poor knowledge is a liability to this group because your can't
recognize your inadequate understanding even after it has been politely
explained to you.

I hope you don't mind but you are now in my plonk file to spare me reading
your further pitiful lamentations.
 
"Patrick = another PITA Jerk"
Out of phase headphone transducers create a far more subtle adverse
effect than that noticed in loudspeakers, so it is not something
immediately evident by A-B testing.


** That is 100% fucking BULLSHIT !!!!!!!!!

With any mono signal, the difference is HUGE.

There is no phase cancellation ..
Click to expand...

** My god you are one ARROGANT CUNTHEAD !!!

FUCKING TRY IT !!!

The difference is FUCKING HUGE.

You stinking pile of autistic shit.



..... Phil
 
"Patrick is a Psycho ASSHOLE "

It's been instructive to see how many people misunderstood what the
original question was trying to solve and they gave obviously useless, if
not misleading, advice. It's never been the same since Eternal September.
Click to expand...

** Listen here - pal.

You do not need any headphones worn over your ears - YOU need a fucking
bullet between the ears.

Same goes for the retarded bitch that bore you and the donkey that knocked
her up.

Never come back or I will really tear you apart.



..... Phil
 
"Patrick" <invalid@invalid.com> wrote in message
news:Xns9EE58D9D9D2126AD265@69.16.185.252...
On 13:07 14 May 2011, Dave Plowman (News) wrote:

In article <Xns9EE57F121FAB96AD265@69.16.185.252>,
Patrick <invalid@invalid.com> wrote:
I have some vinatge headphones (Sennheiser HD424) and want to attach
a new plug.

Which color wires are the positive ones?

The colors in one of the leads are red & blue and in the other lead
black & yellow. (No wire is used as screening - there's just two
wires in each lead.)

Black and blue are the commons. Not that it would make any difference
if you commoned red and yellow.

You can check for sure by unplugging the leads from each actual
earpiece (red and blue plugs), but be careful to pull on the actual
plug only. The pins are of slightly different sizes.

Hope you have a source of the muffs for these - they crumble to dust
quite quickly.

You must know the headphones well because I had long forgotten the leads
plugged into the earpieces. I didn't realize the mini plugs were keyed to
go in only one way around. With that info I could have continuity tested
the colored leads to each of the larger pins on the plugs but you saved me
doing that becauase you have given me the color coding too. Thank you.

You're right about the muffs crumbling. I threw them out. First I'll see
what the cans sound like now and then decide if it's worth getting new
muffs.

It's been instructive to see how many people misunderstood what the
original question was trying to solve and they gave obviously useless, if
not misleading, advice. It's never been the same since Eternal September.
Click to expand...
Actually that's untrue, nobody misunderstood the question or gave useless or
misleading advice. And Phil is quite right, the effect of having the
headphones out of phase with each other is not at all subtle, it is at least
as obvious as it would be with speakers. Just because there is no phase
cancellation in the air doesn't mean that the brain is not immediately aware
of the phase difference heard in the two ears.

David.
 
On 05/14/2011 04:54 AM, Patrick wrote:
On 12:44 14 May 2011, Phil Allison wrote:


"Patrick"

I have some vinatge headphones (Sennheiser HD424) and want to attach a
new
plug.

Which color wires are the positive ones?

The colors in one of the leads are red& blue and in the other lead
black& yellow. (No wire is used as screening - there's just two
wires in each lead.)


** Stick the damn phones on your fat head and connect pairs of wires
to a AA battery until you hear a click.

Now you have your two pairs of wires.

Wire them to a plug any way around you like and connect the same AA to
the common and both positives at the same time.

If the click seems to comes from right inside your head - game over.

If you need more explanation - you do not deserve it.

..... Phil

The four wires are already grouped as two pairs, so we already know which
two wires go together.

I want to get the phasing right (even for headphones). I need to know
which color wire in each pair is the positive.

Are you familiar with decoding these red& blue and black& yellow
headphone wires?

"If the click seems to come from right inside your head - game over".
Click to expand...

What more do you need? Phil's given you a test to see if the phasing is
correct, can you not figure it out, or what to do if the click seems to
come from your right or your left?

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

Do you need to implement control loops in software?
"Applied Control Theory for Embedded Systems" was written for you.
See details at http://www.wescottdesign.com/actfes/actfes.html
 
On May 14, 5:07 am, "Dave Plowman (News)" <d...@davenoise.co.uk>
wrote:
In article <Xns9EE57F121FAB96AD...@69.16.185.252>,
   Patrick <inva...@invalid.com> wrote:

I have some vinatge headphones (Sennheiser HD424)


Hope you have a source of the muffs for these - they crumble to dust quite
quickly.
Click to expand...
Did anyone ever come up with muffs better than the OEM crap for these?
I have two or three bald pair at the back of the cabinet. I ordered
new muffs for one of these, once, at some amazing fraction of the cost
of a new set of headphones. (Hearing I had bought new muffs, a friend
pressed his on me. Frustrated, he had bought Koss headphones.)
 
"Meat Plow" <mhywattt@yahoo.com> wrote in message
news:pan.2011.05.14.19.31.00@emutt.macspoofer.lmao...
On Sat, 14 May 2011 23:22:51 +1000, Phil Allison wrote:

"Patrick is a Psycho ASSHOLE "

It's been instructive to see how many people misunderstood what the
original question was trying to solve and they gave obviously useless,
if not misleading, advice. It's never been the same since Eternal
September.


** Listen here - pal.

You do not need any headphones worn over your ears - YOU need a fucking
bullet between the ears.

Same goes for the retarded bitch that bore you and the donkey that
knocked her up.

Never come back or I will really tear you apart.



.... Phil

This type of threat should be forwarded to http://www.individual.net/

news@individual.net

with the entire header field including message ID.
Click to expand...



There is no excuse for this type of venomous reply.....
Click to expand...
Au Contraire, Phil is the excuse for this type of venomous reply.
Mikek
PS.
Patrick,
We do get some rather interesting diatribe from Phil, rarely with any good
reason.
Don't take it personal, he's not nice to anybody.
Phil has some issues he deals with, but when he answers an electronics or
audio
question he's most likely right.
 
On Sat, 14 May 2011 23:22:51 +1000, Phil Allison wrote:

"Patrick is a Psycho ASSHOLE "

It's been instructive to see how many people misunderstood what the
original question was trying to solve and they gave obviously useless,
if not misleading, advice. It's never been the same since Eternal
September.


** Listen here - pal.

You do not need any headphones worn over your ears - YOU need a fucking
bullet between the ears.

Same goes for the retarded bitch that bore you and the donkey that
knocked her up.

Never come back or I will really tear you apart.



.... Phil
Click to expand...
This type of threat should be forwarded to http://www.individual.net/

news@individual.net

with the entire header field including message ID.

There is no excuse for this type of venomous reply and most all
responsible news providers will terminate the responsible account
without question.



--
Live Fast Die Young, Leave A Pretty Corpse
 
Patrick wrote:
On 13:49 14 May 2011, Phil Allison wrote:

"Patrick = another PITA Jerk
Out of phase headphone transducers create a far more subtle adverse
effect than that noticed in loudspeakers, so it is not something
immediately evident by A-B testing.

** That is 100% fucking BULLSHIT !!!!!!!!!

With any mono signal, the difference is HUGE.

There is no phase cancellation like there is for speaker sounds because the
sound from each headphone transducer is interfereing with the other.
Click to expand...
Wrong, I'm afraid. I myself have heard a 2-channel sound clip on the net that
irrefutably demonstrated that interference does occur in the brain, at
lowish frequencies, but not that low. Up to a few hundred Hz.

It was a clip of (f Hz) in one channel/earphone, and (f+delta Hz) into
the other earphone.

With just either (one) earphone inserted, you could hear just a plain tone of
f or (f+delta) as expected.

With both in, you heard the beating at a few Hz, proving that addition/
mixing was taking place in the brain.

It sounded very weird, and I was very surprised. but the effect was utterly
obvious and undeniable.

I can't remember now where I found the sound sample, but IIRC it was a link
on Wikipedia.


Martin
 
Patrick wrote:
I have some vinatge headphones (Sennheiser HD424) and want to attach a new
plug.

Which color wires are the positive ones?

The colors in one of the leads are red & blue and in the other lead black &
yellow. (No wire is used as screening - there's just two wires in each
lead.)
Click to expand...
From my years of tinkering with old stereo headphones as a teenager, I'm
going to confidently guess:

Black - Left Ground/-ve
Yellow - Left +ve

Blue - Right Ground/-ve
Red - Right +ve


Martin
 
"Patrick" <invalid@invalid.com> wrote in message
news:Xns9EE57F121FAB96AD265@69.16.185.252...
I have some vinatge headphones (Sennheiser HD424) and want to attach a new
plug.

Which color wires are the positive ones?

The colors in one of the leads are red & blue and in the other lead black &
yellow. (No wire is used as screening - there's just two wires in each
lead.)
Click to expand...
Wire them up to a mono source and insert a dpdt switch so you can
easily and quickly reverse the phase of one earpiece. Insert a PVC
T coupling between the earpieces. Compare the sound levels coming
from the bottom of the T while flipping the switch. Loudest is in phase.
Art
 
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