Martin Logan Shower Cleaning PDF

MartinLogan Audio Owners Forum

Help Support MartinLogan Audio Owners Forum:

Robert D

Well-known member
MLO Supporter
Joined
Jul 21, 2020
Messages
2,205
Reaction score
522
Location
Ohio
A few years ago I washed my old SL3 panels and while it restored them to maybe 80%, one of them did acquire an occasional buzz that i believe was due to the adhesives of the foam separators deteriorating. Spraying water in there created some gaps or loose spots, and certain frequencies would excite a buzz. It was only occasional on loud music, but finally, about a year ago, I got new panels from ML, and now my SL3's are good as new! Maybe even better with the new panels. I bought some new X-over caps too, but haven't installed them yet.
Yeah, the new panels use a newer coating and a few other things are different. They are supposed to be better overall. ML has some literature on it.
 

Nardix

Member
Joined
Jul 3, 2022
Messages
7
Reaction score
1
Location
Argentina
Hello everyone,

I went through the process of Cleaning my Martin Logan Quest Stators in the shower.

I wrote the process down and created a PDF for everyone.


Hope this helps those interested in doing the same.

Cheers
Steve

Thanks to Tom for hosting for me

http://www.martinloganowners.com/~t...n Logan Quest Stator Panel Shower Washing.pdfhttp://www.martinloganowners.com/~tdacquis/forum/ML/Martin Logan Quest%2

Thanks for sharing! it's just about spraying water or you use any kind of soap / detergent? Thanks !!!!
 

drkumarmp

Member
Joined
May 20, 2022
Messages
10
Reaction score
2

Check this post for my latest experiance with washing.


Thanks for sharing! it's just about spraying water or you use any kind of soap / detergent? Thanks !!!!
 

Jazzman53

Well-known member
Joined
May 20, 2017
Messages
106
Reaction score
72
Location
Savannah, GA
I've never washed a panel and don't know the answer to your question, or what the recommended procedure is.

However; I will caution you that most dish detergents contain a conductive salt called sodium laurel sulfate. And in fact; liquid dish soap is often used by DIY ESL speaker builders to make the diaphragm conductive (i.e. a 50/50 mix of water/dish soap wiped on with a cotton ball works perfectly as a conductive coating).

So; if you opt to use any kind of soap, make very, very sure that you thoroughly rinse away all traces of the soap because any that's left can create a conduction path between the diaphragm and stator(s) which would drain charge off the diaphragm-- you definitely would not want that.
 

Nardix

Member
Joined
Jul 3, 2022
Messages
7
Reaction score
1
Location
Argentina
Thanks for the response, being honest the sole idea of washing a speaker of any king gives me the shivers. At this point if I move forward most likely I feel like replacing the panels...
 

Tmort

Well-known member
Joined
Feb 1, 2022
Messages
61
Reaction score
26
Thanks for the response, being honest the sole idea of washing a speaker of any king gives me the shivers. At this point if I move forward most likely I feel like replacing the panels...
I had a panel with some issues that I hoped would be solved with washing. While it’s a daunting thought it’s pretty easy and while it didn’t create the change I was looking for it didn’t degrade it either.
I did once with just water then a second time later with a 50/50 mix of simple green that I dipped a horse hair brush in and washed / soaped the panel with. In a bathtub with a handheld shower attachment made it easy work. Rinse very well then rinse with distilled water and let air dry for 24 hours.
if you think your panel is dirty / compromised I’d suggest “you have nothing to lose” if panel replacement is already your considered alternative.
 

SJM

New member
Joined
Jun 27, 2022
Messages
1
Reaction score
0
Location
usa
I just washed the panels on my ML Clarity’s this weekend. I had never done it before. I wet the panels down in the shower front and back then I sprayed on full strength Simple Green and used a soft bristle paint brush to scrub them.

One thing that I noticed during this process is when I first soaked the panels to get them wet the water ran of pretty clear and after scrubbing with the Simple Green rinsing the back of the panel the water was still pretty clear but when I rinsed the front of the panel it looked like very dirty water running down the drain.
While I was waiting for the panels to dry i learned This was NOT dirt. From what I understand ML sprays a graphite coating on the front of the Mylar as a backup conductive coating to the vapor deposited one. That’s what was going down the drain. Hind sight being 20/20 I probably should have not used anything but water one the first attempt and seen how they turned out.
I bought a 1 gallon garden sprayer and filled it with distilled water for the final rinse. it worked very well allowing me to focus a spray close to the Mylar without too much pressure.

After they completely dried a couple days I hooked them up and was absolutely floored that they sound like new. Prior to the wash they weren’t even listenable. I’m very very happy with the results but only time will tell how they hold up. I will report back from time to time to give updates on performance.
 

Brandon Hartwick

Well-known member
MLO Supporter
Joined
Mar 17, 2022
Messages
252
Reaction score
139
I just washed the panels on my ML Clarity’s this weekend. I had never done it before. I wet the panels down in the shower front and back then I sprayed on full strength Simple Green and used a soft bristle paint brush to scrub them.

One thing that I noticed during this process is when I first soaked the panels to get them wet the water ran of pretty clear and after scrubbing with the Simple Green rinsing the back of the panel the water was still pretty clear but when I rinsed the front of the panel it looked like very dirty water running down the drain.
While I was waiting for the panels to dry i learned This was NOT dirt. From what I understand ML sprays a graphite coating on the front of the Mylar as a backup conductive coating to the vapor deposited one. That’s what was going down the drain. Hind sight being 20/20 I probably should have not used anything but water one the first attempt and seen how they turned out.
I bought a 1 gallon garden sprayer and filled it with distilled water for the final rinse. it worked very well allowing me to focus a spray close to the Mylar without too much pressure.

After they completely dried a couple days I hooked them up and was absolutely floored that they sound like new. Prior to the wash they weren’t even listenable. I’m very very happy with the results but only time will tell how they hold up. I will report back from time to time to give updates on performance.

It likely was actually just dirt, Martin Logan does spray a coating on the film but it doesn't wash off anywhere near as easy as people talk about. I washed my panels a number of months ago and they're still flawless.
 

Capt.Willard

Member
Joined
Jul 25, 2021
Messages
20
Reaction score
8
I just did this with a pair of Ascents (original foam type standoffs not clear spar fyi).
I removed the panels and used wooden clothes pins all along the edges of the panels to hold them tight together to prevent slipping.
I went the Simple green route, placed both panels upside down on a towel in the bathtub and used simple green sprayed full strength straight from the bottle onto the panels both sides , starting at the top and worked my way down using a firm trigger pull and a pretty focused spray setting to maximize the force.
Did that twice in a row both sides, let sit for about 10 minutes then used shower head on relatively gentle setting and cold water and rinsed top to bottom multiple times both sides to be sure no residue was left and then carefully rinsed each side top to bottom with distilled water from the gallon jug going slow enough to be thorough, section by section, then used hairdryer on cool setting top to bottom slowly enough to help the water to the bottom and let sit for 2 days before removing and then life happened and it took 2 weeks before I could mount them back up and just tried them this evening and the results were great!
The highs just sparkle!
They are noticeably more transparent and gleam like mirrors from across the room.
I didn't try scrubbing them or try using a towel to dry them as I didn't want to introduce dust from the towel etc. back into the panel etc.
I also didn't notice any color or filth to speak of in the runoff but the panels were clearly more transparent than before.
Super pleased with the result!
Hope this helps someone and good luck with your efforts.
 
Last edited:

Robert D

Well-known member
MLO Supporter
Joined
Jul 21, 2020
Messages
2,205
Reaction score
522
Location
Ohio
I just did this with a pair of Ascents (original foam type standoffs not clear spar fyi).
I went the Simple green route, placed both panels upside down on a towel in the bathtub and used simple green sprayed full strength straight from the bottle onto the panels both sides , starting at the top and worked my way down using a firm trigger pull and a pretty focused spray setting to maximize the force.
Did that twice in a row both sides, let sit for about 10 minutes then used shower head on relatively gentle setting and cold water and rinsed top to bottom multiple times both sides to be sure no residue was left and then carefully rinsed each side top to bottom with distilled water from the gallon jug going slow enough to be thorough, section by section, then used hairdryer on cool setting top to bottom slowly enough to help the water to the bottom and let sit for 2 days before removing and then life happened and it took 2 weeks before I could mount them back up and just tried them this evening and the results were great!
The highs just sparkle!
They are noticeably more transparent and gleam like mirrors from across the room.
I didn't try scrubbing them or try using a towel to dry them as I didn't want to introduce dust from the towel etc. back into the panel etc.
I also didn't notice any color or filth to speak of in the runoff but the panels were clearly more transparent than before.
Super pleased with the result!
Hope this helps someone and good luck with your efforts.
That's great. Congrats. Do you use any DSP with the speakers? I'm wondering how the gain is set on the speakers. When my panels were old and worn I noticed Audyssey had to set my front at +15 dB. My new panels are at only +2 dB now. Highs are much better like you have experienced, and they play much louder than before too.
 

Capt.Willard

Member
Joined
Jul 25, 2021
Messages
20
Reaction score
8
That's great. Congrats. Do you use any DSP with the speakers? I'm wondering how the gain is set on the speakers. When my panels were old and worn I noticed Audyssey had to set my front at +15 dB. My new panels are at only +2 dB now. Highs are much better like you have experienced, and they play much louder than before too.
Thank You!
No dsp just straight up stereo.
 

Robert D

Well-known member
MLO Supporter
Joined
Jul 21, 2020
Messages
2,205
Reaction score
522
Location
Ohio
I didn't measure them but could hear they were down as they sounded dull at the top.
Now they have speed and detail again and yes seem to be balanced with the bass again.
Overall volume should also be up too. Glad it worked. I still have my old Prodigy panels and wonder if washing them might produce results. I dont really need them, but have them as backups.
 

Brandon Hartwick

Well-known member
MLO Supporter
Joined
Mar 17, 2022
Messages
252
Reaction score
139
I would only use demineralised water for cleaning the panels.
The important thing is to at least rinse them with distilled water, otherwise I'd imagine you'd get nasty water spots.

A spray bottle with distilled water works great for a final rinse after the shower.
 
Joined
Aug 4, 2022
Messages
20
Reaction score
17
Location
Holyoke Massachusetts
WOW, I have never heard of putting liquid of any kind on the mylar panel ! What I do to keep the dust in check on my Classic 9's, is to keep them covered with the BLACK cloth cover that they were shipped with when not in use, and hope they stay clean. I don't even dust them as I am afraid of depositing anything into the stat or ONto the mylar itself by introducing dust from a cloth or Swiffer.

Just me adding my thoughts.
 

patrice

New member
Joined
Oct 30, 2019
Messages
4
Reaction score
0
Location
paris
Hello Mirolab, did you replace the complete panels? How is the replacement kit composed? Does it come with the black grille? what was the cost of this replacement. Thank you very much for your answer. Patrice
 
Joined
Aug 4, 2022
Messages
20
Reaction score
17
Location
Holyoke Massachusetts
This is all very interesting. How I get around all of this is...........I put the black covers on my Classic 9's when ever they are not in use, so they are not exposed to much. Only me in the house, no furry pets. I got OCD bad when it comes to dust in the listening space or anywhere in the home for that matter 😟 :giggle: .
 

Robert D

Well-known member
MLO Supporter
Joined
Jul 21, 2020
Messages
2,205
Reaction score
522
Location
Ohio
Id think most of the dust ends up on there while they are running and charged up. Similar to an electrostatic air cleaner. If someone had a fan blowing on the panels it would probably greatly accelerate the dust gathering.
 
Top