Hello
I have a pair UK made Morel tweeter , I would like to use them.
Actually they sound very nice.
I chose them over the 9300 Scan Speak , to me the Morel sound better..
My problem with them they are a bit dirty.
Did someone ever try to clean sticky dome tweeters?
Any advise, I do not want to destroy them.
Please let me know if you have any idea.
Thank you !!
Greetings gabor
I have a pair UK made Morel tweeter , I would like to use them.
Actually they sound very nice.
I chose them over the 9300 Scan Speak , to me the Morel sound better..My problem with them they are a bit dirty.
Did someone ever try to clean sticky dome tweeters?
Any advise, I do not want to destroy them.
Please let me know if you have any idea.
Thank you !!
Greetings gabor
Attachments
Hi,
i would try some (possibly double sided) adhesive tape,
stick it several times to my own fingers or a clean
surface to make it less sticky and grab the dust very
gently from the surface - with the tape being made
as "unsticky" as possible before.
Try to keep the voice coil in its orientation in the
magnetic gap, if you cannot avoid a little excursion of
the membrane. When operating at the periphery of
the dome, near the suspension, rather pull the tape
to the side (in the plane of the faceplate).
In the center you may pull more upward, but try everywhere
kind of soft 'rolling' motion instead of pure 'pulling'.
Try to avoid moving -or sticking to- the voice coil cords.
edit:
Ah ... just read the Q tip trick.
i would try some (possibly double sided) adhesive tape,
stick it several times to my own fingers or a clean
surface to make it less sticky and grab the dust very
gently from the surface - with the tape being made
as "unsticky" as possible before.
Try to keep the voice coil in its orientation in the
magnetic gap, if you cannot avoid a little excursion of
the membrane. When operating at the periphery of
the dome, near the suspension, rather pull the tape
to the side (in the plane of the faceplate).
In the center you may pull more upward, but try everywhere
kind of soft 'rolling' motion instead of pure 'pulling'.
Try to avoid moving -or sticking to- the voice coil cords.
edit:
Ah ... just read the Q tip trick.
Last edited:
Hello
Nothing you guys advised worked out.
On the end I used Mineral Spirits , I washed done all that sticky stuff with a small painting brush. It took me a half an hour.
Now I put a thin coat of paint on it because there were a lot of small holes on the silk.
I did on one driver, I wait until will dry so I can do a listening test com pare to the orig.
I hate that sticky stuff!
I hope it work, now the dome got a bit lighter.
Thank for all your advise.
Greetings
Nothing you guys advised worked out.
On the end I used Mineral Spirits , I washed done all that sticky stuff with a small painting brush. It took me a half an hour.
Now I put a thin coat of paint on it because there were a lot of small holes on the silk.
I did on one driver, I wait until will dry so I can do a listening test com pare to the orig.
I hate that sticky stuff!
I hope it work, now the dome got a bit lighter.
Thank for all your advise.
Greetings
Hello
I made some picture from the driver, the paint didn't dry yet but I like the result.
No more dust etc problem.
I will com pare with the orig sound wise, I hope at least as good as the orig.
I wait a day or so , so the paint get 100% dry.
The dome still nice and soft..
Greetings gabor
I made some picture from the driver, the paint didn't dry yet but I like the result.
No more dust etc problem.
I will com pare with the orig sound wise, I hope at least as good as the orig.
I wait a day or so , so the paint get 100% dry.
The dome still nice and soft..
Greetings gabor
Attachments
Hello
Yes I removed most of the stickiness from the dome.
To fill up those tiny holes between the silk I used thin black paint ,one coat . Now after the paint dried out it look even better.
I have to do some listening test.
The dome itself very soft, I hope the sound will be at least as good when it was dirty. I think now much lighter the dome itself.
I removed a lot of dust ,hair with the sticky stuff. What ever is that sticky stuff it so strong even with packaging tape I couldn't removed the dust. It took of the glue from the tape.
So I soaked in mineral spirits and after a while it came of. That sticky stuff is like a magnet to the dust!
It may sound good like that but I think is still not the best idea to use that .
Hard to protect against to the dust etc.
Greetings
Yes I removed most of the stickiness from the dome.
To fill up those tiny holes between the silk I used thin black paint ,one coat . Now after the paint dried out it look even better.
I have to do some listening test.
The dome itself very soft, I hope the sound will be at least as good when it was dirty. I think now much lighter the dome itself.
I removed a lot of dust ,hair with the sticky stuff. What ever is that sticky stuff it so strong even with packaging tape I couldn't removed the dust. It took of the glue from the tape.
So I soaked in mineral spirits and after a while it came of. That sticky stuff is like a magnet to the dust!
It may sound good like that but I think is still not the best idea to use that .
Hard to protect against to the dust etc.
Greetings
Hey, those are my tweeters too! I think I've been using them for about 20 years and they're still my favorites. No idea just what the composition of the sticky stuff is, but it provides some damping/resonance control. After many years it dries out, but the dust remains. IMHO, paint is a bad idea but it might end up sounding OK anyway. Better to just ignore the dust. Not sure, but it might be possible to buy new dome/coil assemblies from Morel and replace them.
CH
CH
Madisound's got replacement voice coils for "older" MDT-28 tweeters for $18 each.
Morel R-30 Voice Coil for MDT30 and older MDT28
They have a tech support line which I have found very knowledgeable in the past in case you have questions about what is an "older" MDT-28.
Good luck!
Morel R-30 Voice Coil for MDT30 and older MDT28
They have a tech support line which I have found very knowledgeable in the past in case you have questions about what is an "older" MDT-28.
Good luck!
Hello
To me it sound more open, definitely it goes higher, I like the result.
At first I clean done the sticky stuff half of it and I painted normal pain. It was a bit dull
After I clean done again all the paint, sticky stuff only I see the silk with lot of small holes how it was woven.
Second time I used paint thinner half-half paint. I put on just a thine coat to cover the holes.
Now a bit sound like a ribbon tweeter or some metallic dome tweeter but not as harsh.
I hate metal dome tweeters!
I just did on one tweeter so I can com pare it.
Probably I will put one more thin coat because now the sound to open all do not bad at all! A bit to much small (particle)sound I can hear what I do not hear on the orig
Don't forget if your tweeter got dusty and the membrane dried out it does not sound like the new, that 100%! The frequency of the tweeter got messed up! These are great tweeters , I like them a lot.
Yes I see the replacement voice coils but you have to remove the plastic totally from the dome. Otherwise the coil does not goes the the right place.
These tweeter does not have that plastic you see on the replacement !
I open up one of my tweeter. By removing the dome you can easily damage it all .
I painted many tweeters , woofer in good result.
The tweeter same loud like another , same character , more openes, more sound, not bad at all.
I will do more tests. I would like to measure the distortion but I have no tools for that!
Greetings
To me it sound more open, definitely it goes higher, I like the result.
At first I clean done the sticky stuff half of it and I painted normal pain. It was a bit dull
After I clean done again all the paint, sticky stuff only I see the silk with lot of small holes how it was woven.
Second time I used paint thinner half-half paint. I put on just a thine coat to cover the holes.
Now a bit sound like a ribbon tweeter or some metallic dome tweeter but not as harsh.
I hate metal dome tweeters!
I just did on one tweeter so I can com pare it.
Probably I will put one more thin coat because now the sound to open all do not bad at all! A bit to much small (particle)sound I can hear what I do not hear on the orig
Don't forget if your tweeter got dusty and the membrane dried out it does not sound like the new, that 100%! The frequency of the tweeter got messed up! These are great tweeters , I like them a lot.
Yes I see the replacement voice coils but you have to remove the plastic totally from the dome. Otherwise the coil does not goes the the right place.
These tweeter does not have that plastic you see on the replacement !
I open up one of my tweeter. By removing the dome you can easily damage it all .
I painted many tweeters , woofer in good result.
The tweeter same loud like another , same character , more openes, more sound, not bad at all.
I will do more tests. I would like to measure the distortion but I have no tools for that!
Greetings
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