Dear DIY People,
“Just” as info :
I noticed some construction problems in some Eton 7-375/32 HEX (in 2013-2014, I thought it’s a "casual" thing!) and then again I have the same problem in 2018-2020 with some Symphony II 7-312/C8/32 HEX!
The wires connection that goes from the terminals to the coil hits the cone during excursion.
We can mainly notice it when the woofer reproduce continuos low frequencies with excursions of +-2mm or more, and it's not just a question of "noise", it brings also to higher distortion.
Incredible to believe that we can have such a basic mistake on this price point drivers (over 200,00€ per piece),
NOT necessarily all drivers have this problem! Some does (more or less pronounced) some don't. Question of luck.
ALL DEPENDS on how "carefully" they glued the wire to the cone! Above the glue point the cable is very close to the cone.
I guess they should have found a better solution that it's not so sensitive to human error.
I will try to attach 1 photo and a Video (at the end of the page). In the videos is clearly possible to see-hear what I mean.
The test was made at 30, 35, 40 and 45 Hz, and I did the same test with drivers of the cost of 20,00/40,00€ values and there was no any noise! 🙁
But it’s enough to play records like the Billie Eilish one and you will clearly ear it…
P.S.
I wrote many email to Eton, just to share my experience and to "help" them for the future... NEVER any kind of answer.
I also wrote few times to Klang&Ton and to Mr. Holger Barske (email and Facebook) thought that they should be interested on this kind of concern... NEVER any kind of answer. 🙁
View attachment Eton 7-312-C8-32HEX-Video-CutSm.mp4
Thank you for the attention!
Take care and great DIY building to all of you!
Andrea
“Just” as info :
I noticed some construction problems in some Eton 7-375/32 HEX (in 2013-2014, I thought it’s a "casual" thing!) and then again I have the same problem in 2018-2020 with some Symphony II 7-312/C8/32 HEX!
The wires connection that goes from the terminals to the coil hits the cone during excursion.
We can mainly notice it when the woofer reproduce continuos low frequencies with excursions of +-2mm or more, and it's not just a question of "noise", it brings also to higher distortion.
Incredible to believe that we can have such a basic mistake on this price point drivers (over 200,00€ per piece),
NOT necessarily all drivers have this problem! Some does (more or less pronounced) some don't. Question of luck.
ALL DEPENDS on how "carefully" they glued the wire to the cone! Above the glue point the cable is very close to the cone.
I guess they should have found a better solution that it's not so sensitive to human error.
I will try to attach 1 photo and a Video (at the end of the page). In the videos is clearly possible to see-hear what I mean.
The test was made at 30, 35, 40 and 45 Hz, and I did the same test with drivers of the cost of 20,00/40,00€ values and there was no any noise! 🙁
But it’s enough to play records like the Billie Eilish one and you will clearly ear it…
P.S.
I wrote many email to Eton, just to share my experience and to "help" them for the future... NEVER any kind of answer.
I also wrote few times to Klang&Ton and to Mr. Holger Barske (email and Facebook) thought that they should be interested on this kind of concern... NEVER any kind of answer. 🙁
View attachment Eton 7-312-C8-32HEX-Video-CutSm.mp4
Thank you for the attention!
Take care and great DIY building to all of you!
Andrea
I have seen this many on many drivers. Mostly PA drivers.
Some of them bend the wire and make an "arc bridge" attached on the middle yellow suspension.
On one of my 18Sound 18'' drivers the wire broke at that point, but I've managed to repair it.
You could try to bend it a little towards the frame or shortening it, but depending on the angle, it could break then near the cone.
Make sure when You shorten it, You manually move the cone to it's Xmax positions or it will impede cone movement afterwards.
You can also lengthen the wire making a larger arc glueing around the coil.
Some of them bend the wire and make an "arc bridge" attached on the middle yellow suspension.
On one of my 18Sound 18'' drivers the wire broke at that point, but I've managed to repair it.
You could try to bend it a little towards the frame or shortening it, but depending on the angle, it could break then near the cone.
Make sure when You shorten it, You manually move the cone to it's Xmax positions or it will impede cone movement afterwards.
You can also lengthen the wire making a larger arc glueing around the coil.
Hi! We'll my problem is that the Eton ARE very good drivers! Really! Well made and they have a very good sound, sound stage and great dynamic... writing shortly.
That's why I am sos sorry when I see this "small" details that can be fixed with no any extra cost.
Thank you for your feed back! 🙂
Hi MAACO,
Thank you fro your feed back.
I forgot to write in my post that I did fix the problem already.
I CHECK ONE BY ONE THE DRIVERS AND FIX THE PROBLEM using some EXTRA glue between the wire and the cone, it's a bit tricky but the problem is "fixed". But this is not how it should be…
I put a bit of glue between the cone and the wire (just above the glued point made by the factory), in this way (when the cone is moving back and forward) the wire is not anymore hitting the cone, no anymore noise.
The glue is not thermal kind of glue, I use an "elastic" kind of glue and transparent.
Best
Andrea
Thank you fro your feed back.
I forgot to write in my post that I did fix the problem already.
I CHECK ONE BY ONE THE DRIVERS AND FIX THE PROBLEM using some EXTRA glue between the wire and the cone, it's a bit tricky but the problem is "fixed". But this is not how it should be…
I put a bit of glue between the cone and the wire (just above the glued point made by the factory), in this way (when the cone is moving back and forward) the wire is not anymore hitting the cone, no anymore noise.
The glue is not thermal kind of glue, I use an "elastic" kind of glue and transparent.
Best
Andrea
Waaaay back Eton had -cough- not the best reputation on mfg consistency and reliability. Such a shame, their R&D was a class higher. Seems not much has changed.
Thank you for your informations!! Good to know.
Now I always check them one by one just in case, and then fix the problem if needed.
Have a nice day...
Now I always check them one by one just in case, and then fix the problem if needed.
Have a nice day...
I rock a 3" eton mid. I too like them.
Is " 30, 35, 40 and 45 " hz something to expect from a 7"?
The resonant frequency of the eton 7 is 35hz.
I wonder if this is a manufacturing issue or they just aren't meant to play that low? I'm a newb and hope you don't mind the question.
It is nice that you found a solution.
BTW I too got NO response from Eton emailing them a question.
Is " 30, 35, 40 and 45 " hz something to expect from a 7"?
The resonant frequency of the eton 7 is 35hz.
I wonder if this is a manufacturing issue or they just aren't meant to play that low? I'm a newb and hope you don't mind the question.
It is nice that you found a solution.
BTW I too got NO response from Eton emailing them a question.
Hi HeadShake,
Don't worry for the 3" mid you have, I think you will not have this kind of problem (and anyway it's not happening to all drivers), over 100 hz you really will not! 🙂
It is not really related to a certain low frequency, I just input to the drivers a frequency that make them move "well".
They don't resonate to a certain frequency, it's simply a physical problem. If the wires above the gluing pointe (on the cone) are too close to the cone then when the cone is moving continuously back and forward the wire may vibrate (hit the cone) and make the noise.
Please note:
- Eton drivers have a very good natural sound quality, with a great image-3D reproduction. Better then some other good drivers in the market. And they are also capable of a very good dynamic!! 🙂
- With acoustic music it's very rare to have a not changing "continuous frequencies" (I mean a 45 hz sine wave like in the test I made). You can have it with Organ, or maybe with a Contrabass in some cases. The music is more "impulsive".
But I did ear this problem DURING music listening! It was during pop music record that had some continuous low frequencies (3 tracks from the Billie Eilish CD, or Lana Del Rey and so on...), but it was also possible to ear it in some acoustic music records but it was more rare and less prominent.
Still... it shouldn't happen!
Best! Andrea
Don't worry for the 3" mid you have, I think you will not have this kind of problem (and anyway it's not happening to all drivers), over 100 hz you really will not! 🙂
It is not really related to a certain low frequency, I just input to the drivers a frequency that make them move "well".
They don't resonate to a certain frequency, it's simply a physical problem. If the wires above the gluing pointe (on the cone) are too close to the cone then when the cone is moving continuously back and forward the wire may vibrate (hit the cone) and make the noise.
Please note:
- Eton drivers have a very good natural sound quality, with a great image-3D reproduction. Better then some other good drivers in the market. And they are also capable of a very good dynamic!! 🙂
- With acoustic music it's very rare to have a not changing "continuous frequencies" (I mean a 45 hz sine wave like in the test I made). You can have it with Organ, or maybe with a Contrabass in some cases. The music is more "impulsive".
But I did ear this problem DURING music listening! It was during pop music record that had some continuous low frequencies (3 tracks from the Billie Eilish CD, or Lana Del Rey and so on...), but it was also possible to ear it in some acoustic music records but it was more rare and less prominent.
Still... it shouldn't happen!
Best! Andrea
I've been running the 5 inch and 11 inch for years and love them.
I also bought the 1 inch soft dome at the time, in 2008 I think, one of the tweeters was wired backwards. It measured and operated fine, just inverted.
I also bought the 1 inch soft dome at the time, in 2008 I think, one of the tweeters was wired backwards. It measured and operated fine, just inverted.
More info...
For who may think that I am driving this 7" Eton driver as crazy to get the "wires to cone vibration" problem, then look at this 2 videos. Before I fix the problem and after I fix the problem. Are you able to ear differences? As you can see we are here around a +-2mm xmax!! Music is from Billie Eilish CD, track 9 (but this problem is audible also with other musics and tracks). Best, Andrea View attachment 01-IMG_2612-.mp4
View attachment 02-IMG_2696-.mp4
For who may think that I am driving this 7" Eton driver as crazy to get the "wires to cone vibration" problem, then look at this 2 videos. Before I fix the problem and after I fix the problem. Are you able to ear differences? As you can see we are here around a +-2mm xmax!! Music is from Billie Eilish CD, track 9 (but this problem is audible also with other musics and tracks). Best, Andrea View attachment 01-IMG_2612-.mp4
View attachment 02-IMG_2696-.mp4
Attachments
Also had this issue with 18Sound and model 15LW1401 many times with 4 different batches varying from 2004 to 2014 😓