:) this encouraged me to fix it once and for all and I believe I have found the root cause of the issue: the two springs are not symmetrical, there both coiled the same and placed side by side. This means that when you plug the fork connector, the rightmost contact is done by the point pushing two loops of coil to the right copper barrel, whereas the left point pushes on only one loop on its barrel - making it quite a looser connexion. I have let go of the small white plastic retainer in order to turn the left spring 180 degrees, thus having its prehensible end in the middle, down. Close to its neighboor but that is ok as long as you fit in the fork connector before fitting the front assembly together, making sure it fits properly and it will hold everything. (I had to pry the left coil with a sewing needle to make room for the left point upon insertion, because the second loop is a bit in the way and it jumps if you hit it. But after insertion between the second and third coil it fits perfectly and the contact is firm.) no more issues since the. :) hope this helps
Just did this successfully, cheers for the video! to anyone attempting it, when adjusting the springs I wasn´t able to find a small enough screwdriver to attempt it with confidence....i found a sim card key to be about the right size to get into that small hole , best of luck!
It's been an issue since the first iteration of the HD25 in the nineties. Sennheiser in Germany refuse to fix the well-documented design flaw, which is, by far, the most retarded way to connect a small plug to a speaker wire... Standard German arrogance...
fascinating video. I've had these headphones forever and the sound is great. I've had this same problem for years already. Everyone I know who uses these, have had the same problem. That's at least 50 people. I never thought of the problem being uneven springs! I specifically bought them because you could replace the cable, unlike Sony's that use a much thinner cable. Thanks so much for this video. They're working for the moment.
Thanks for the video, gives me a bit more confidence in trying this fix. Have a set of HD25+ I bought in 2019 where the connector had been redesigned from the earlier models, so was hoping this wouldn't be an issue but here we are. As an earlier commenter said it's the Achilles heel of these otherwise fantastic headphones. Possibly due to the supposedly "replaceable" parts that never seem to be readily available enough (or too expensive) that you just end up buying a new set.
I've killed an old pair doing this and had to try it on the new pair today. Fortunately, the new models have insulating plastic around the thin wires on the driver, which means you're less likely to break the wire and kill your headphones. This solution didn't work for me this time, but the spring trick does work. I feel there may be a new problem with mine, as they tend to fade out rather than cut out in the R ear. As if the drive needs more power? A temp fix is also unplugging and replugging for me.. which was odd. I ended up having the old driver I didn't kill from my previous pair so just threw that on there and I'm back in action.. Great headphones and the modular nature is great for longevity. HD25 history for me : First pair: 15 years of heavy use (clubs, bags, travel) Second pair 2-year use (studio, bags) I think I'd buy another pair if my current ones broke because it's nice using the old ones as spare parts.
thanks for the comments. i reckon they don't make them like they used to, which is a shame.. but isn't that the case for pretty much everything these days? my coffee machine included! :D
Ok guys so I found a solution. It seems the right channel is always the one at fault. I have two sets and just picked up a third set because I love the headphones and the third set was a steal at $25 because of the right channel as well. So I took all three apart and noticed that the positive side on all three of the right side cups had the positive wire just laying on top of the thin aluminium wire that connects to the driver. I am assuming because people keep pulling the wire out and try to reset the clapping that eventually it breaks the connection that was flimsy at the very beginning. I retouched it with some solder and now I have three pairs of cans that work phenomenal! It didn’t need much solder just enough to retouch it. I have put in all headphones and manually wiggled the cable to see if they would disconnect and they didn’t. Seems like the fix to this problem.
Good question. It probably depends on the equipment you have and your abilities. I'm sure there are plenty of people out there who could repair that, but for the average Joe it might be a tall order. You can buy a replacement capsule if you do balls it up, and it would still be cheaper than replacing the entire set.
@@davestalker lol was just jokes -- i pulled the cord out and put it back in, that fixed it enough for now on my end. will come back if it acts up again :)
right ear stopped working on my headphones. Tied plugging righ ear into left cable no sound. even trying left ear on right cable no sound. left ear plugged into left cab;e has sound. Anybody any idea what is causing this?
I tried this fix, it seemed to work and then a few weeks later the same problem arose again. Next time I dismantled the earpieces I ripped the tiny wires... headset was only 3 years old with non-professional use. So 👎👎 for Sennheiser and 140€ down the drain.
You were taking me on a journey inside our beloved sennheisers🥰🥰🥰
:) this encouraged me to fix it once and for all and I believe I have found the root cause of the issue: the two springs are not symmetrical, there both coiled the same and placed side by side. This means that when you plug the fork connector, the rightmost contact is done by the point pushing two loops of coil to the right copper barrel, whereas the left point pushes on only one loop on its barrel - making it quite a looser connexion.
I have let go of the small white plastic retainer in order to turn the left spring 180 degrees, thus having its prehensible end in the middle, down. Close to its neighboor but that is ok as long as you fit in the fork connector before fitting the front assembly together, making sure it fits properly and it will hold everything. (I had to pry the left coil with a sewing needle to make room for the left point upon insertion, because the second loop is a bit in the way and it jumps if you hit it. But after insertion between the second and third coil it fits perfectly and the contact is firm.) no more issues since the. :) hope this helps
Great and simple solution!
Just did this successfully, cheers for the video! to anyone attempting it, when adjusting the springs I wasn´t able to find a small enough screwdriver to attempt it with confidence....i found a sim card key to be about the right size to get into that small hole , best of luck!
This is the most British repair I’ve seen in a while. Great fun
This seems to be the Achilles' heel of the Senhizer hd 25 headphones
It's been an issue since the first iteration of the HD25 in the nineties. Sennheiser in Germany refuse to fix the well-documented design flaw, which is, by far, the most retarded way to connect a small plug to a speaker wire... Standard German arrogance...
fascinating video. I've had these headphones forever and the sound is great. I've had this same problem for years already. Everyone I know who uses these, have had the same problem. That's at least 50 people. I never thought of the problem being uneven springs! I specifically bought them because you could replace the cable, unlike Sony's that use a much thinner cable. Thanks so much for this video. They're working for the moment.
it needs some warm up guys dont get too excited. best fix vid ever.
Thanks for the video, gives me a bit more confidence in trying this fix. Have a set of HD25+ I bought in 2019 where the connector had been redesigned from the earlier models, so was hoping this wouldn't be an issue but here we are.
As an earlier commenter said it's the Achilles heel of these otherwise fantastic headphones. Possibly due to the supposedly "replaceable" parts that never seem to be readily available enough (or too expensive) that you just end up buying a new set.
Worked a treat nice one. The really thin cables seem to be thicker now so could be a bit more heavy handed though they don't have a lot of slack.
I've killed an old pair doing this and had to try it on the new pair today.
Fortunately, the new models have insulating plastic around the thin wires on the driver, which means you're less likely to break the wire and kill your headphones.
This solution didn't work for me this time, but the spring trick does work.
I feel there may be a new problem with mine, as they tend to fade out rather than cut out in the R ear. As if the drive needs more power? A temp fix is also unplugging and replugging for me.. which was odd.
I ended up having the old driver I didn't kill from my previous pair so just threw that on there and I'm back in action..
Great headphones and the modular nature is great for longevity.
HD25 history for me :
First pair: 15 years of heavy use (clubs, bags, travel)
Second pair 2-year use (studio, bags)
I think I'd buy another pair if my current ones broke because it's nice using the old ones as spare parts.
thanks for the comments.
i reckon they don't make them like they used to, which is a shame.. but isn't that the case for pretty much everything these days?
my coffee machine included! :D
Thank you! Just reanimated my second of a pair of HD25 II 🙏
Thank you for the video. This was incredibly useful.
Ok guys so I found a solution. It seems the right channel is always the one at fault. I have two sets and just picked up a third set because I love the headphones and the third set was a steal at $25 because of the right channel as well. So I took all three apart and noticed that the positive side on all three of the right side cups had the positive wire just laying on top of the thin aluminium wire that connects to the driver. I am assuming because people keep pulling the wire out and try to reset the clapping that eventually it breaks the connection that was flimsy at the very beginning. I retouched it with some solder and now I have three pairs of cans that work phenomenal! It didn’t need much solder just enough to retouch it. I have put in all headphones and manually wiggled the cable to see if they would disconnect and they didn’t. Seems like the fix to this problem.
Nice presentation.Do you know the diameter of the sound membrane of the HD25?Thanks.
I haven't done the operation yet. I need to soon. Been using the backup Sony's and they're not hitting the mark
Thanks Dave
cheers mate!
Is the headphone completely dead if one of those hair thin wires snap?
Good question. It probably depends on the equipment you have and your abilities. I'm sure there are plenty of people out there who could repair that, but for the average Joe it might be a tall order. You can buy a replacement capsule if you do balls it up, and it would still be cheaper than replacing the entire set.
Thanks heaps!
28 minutes?? yeesh, this better fix the problem...
I’m sure you’ll be unrelenting in your praise if it doesn’t 😄
@@davestalker lol was just jokes -- i pulled the cord out and put it back in, that fixed it enough for now on my end. will come back if it acts up again :)
right ear stopped working on my headphones.
Tied plugging righ ear into left cable no sound. even trying left ear on right cable no sound. left ear plugged into left cab;e has sound. Anybody any idea what is causing this?
Same problem with my hd25
I tried this fix, it seemed to work and then a few weeks later the same problem arose again. Next time I dismantled the earpieces I ripped the tiny wires... headset was only 3 years old with non-professional use. So 👎👎 for Sennheiser and 140€ down the drain.
amazing! =)
Thank you! Hope it helped 😁
god i wish you had a decent camera for this
that would be nice, wouldn’t it? 😄
Think I’m just gonna buy a new pair . No way I could do this process without breaking them completely!😅
Why not try if your gonna get new ones?
@@CMjtdgcg I’ve just bought some new ones so yea why not try fix the old ones . I’m gonna give it a go 🤣
@@user-ol7pf8ke7rI just fixed mine, only disconnect them and put them back together. Anything past that is risking breaking it
@@user-ol7pf8ke7r did you try to fix them?
քʀօʍօֆʍ
Unplug left and right spray a tiny amount of contact spray on the both and crack on