I have Martin Logans too. I clip out text that I think is pertinent for my needs. I am not sure where these snippets originated from, but they are excerpts from forums. There is nothing as good as this forum for my needs.
Personally, I would see if you could purchase a new set of panels and then rotate them in and out of service with the set you currently own.
How to clean your panelshttp://db.audioasylum.com/cgi/m.mpl?forum=mug&n=38574&highlight=martin+logan&r=&session=http://db.audioasylum.com/cgi/m.mpl?forum=mug&n=38556&highlight=shower&r=&session=
Posted by hifiman3 ( A ) on October 19, 2002 at 21:14:22
Over the weekend, some kids came to visit, and wound up playing in my music room. Yesterday, to my horror, I discovered someone poured orange soda on my ESL panel ! I called Martin Logan, and was advised to remove the Panel from the frame, and give it a lukewarm shower. OK, I've heard everything now! This morning I did just that; to my hysterical pleasure, showering with My Sequel II panels did the trick! After completely drying them out, not only did they look better than they have in a while, they sound better than I can ever remember! The crisp highs are back, imaging is focused again, and they have the musical quality I remember! I remember them sounding better than they have for the last couple of years, but now I'm in love with music again! I suggest anyone with seasoned Martin Logans to do the same! This is no snake oil trick! This is a totally noticeable improvement! I always keep the panels clean, smoke free (cigarette and cooking), but watching a puddle of dirty water flow down the drain was confirmation that these are in essence dust magnets. I'm putting together a guide for this procedure. It's really a no brainier, finish the procedure with a rinse of distilled water to remove any minerals so the Mylar will be clear of any spots! I also found lots of oxidizing on the wire in the terminal blocks. A fresh strip, and tinning with silver solder should keep the connections clean for many more years! Logan tells me the panels usually die around 10 years, but they have seen a refresher make them last many more years! They also tell me they have chanced the advice, don't leave them plugged in all the time; charge them only while listening! Crap, mine have been plugged in since 1990!
Hope someone else finds my bad experience helpful in restoring the luster to otherwise already great oudspeakers! When I was finished this afternoon, I treated myself to a cold orange soda!
cleaning Martin Logan panelshttp://db.audioasylum.com/cgi/m.mpl?forum=mug&n=38574&highlight=martin+logan&r=&session=
First unhook all the wires, remove the power supply, and and unhook the 3 wires from the screw headers (make a note of which wires go where upon re-installation, my circuit board was marked already). Then lay it (the speaker) down, face up. Using a soft mallet or the like, remove the trim rails by gently tapping the rail upwards (towards the panel) The rail is held in place by 3 little fasteners. The travel should be only an inch or so! The panel is actually held in place by luck, and 4, 4" pieces of Velcro. Start at the top, and pull the stator toward you You'll hear the distinct "ripping sound" of the Velcro releasing. After all 4 are loosened, lift the panel away from the frame, and remove from the enclosure!
I figured I needed company in the shower so decided to bring the panels in too! Using a bit warmer than lukewarm water, I simply let the water stream over both front and back sides for a few minutes until I felt like I was doing a terrible thing to my loudspeakers (about 2 minutes per side)! USE NO SOAP OR SOLVENTS. After the shower, I followed by rinsing both sides with distilled water. I figured this would rinse away any minerals left behind to ensure a clear, spot free sheet of Mylar. I let them drip dry on a towel on the floor for half a day (long side down, as the sides are open and seem to shed more water this way). Several times during drying, I rotated the panels to release trapped water. To finish the drying, I took the panels outside to dry in 50 degree sunshine. Last evening, I reinstalled the panels, re-wired, and voila, new Martin Logans!
Things I noticed:
The panels are of course "sandwiched together" Mine were only attached together top and bottom.
I removed the Velcro on the stators prior to washing making note of replacement.
The wires on both screw blocks were oxidized. I restripped and tinned with good silver solder.
The black Nextel paint finish on the actual speaker cabinet is water soluble. Keep soap and water away or it will dissolve~ I learned a few years ago, and re painted mine better than new. I have the exact paint if you need to re finish them Not cheap at $150 a quart, but makes them better than new, as its a refined formula.
Despite popular belief, there is very little chance of being electrocuted by the voltage in the panel. If you do experience a zap, its like a really big carpet shuffle shock! Common sense already tells you to unplug and count to 1,000,000 before you stick a hand and screwdriver into the power supply!
The wires soldered onto the front and rear grills of the stator can be re-soldered if need be. The (red) wire attached to the Mylar, cannot!!!! Caution here!
Longer drying times are better before you re-install the panel, but if you are a hurrier like me, this can be finished in a day! ( I painted, then glued plastic airplane models in the same sitting as a kid).
After you have things back together, and re energized, you'll notice some zapping and popping. Mine went away after 4-5 hours.
Mine seemed to be fine one minute then fade, then back. I attribute this to still having water in the panel. I did this yesterday, and am cranking on them today without ANY ill effects!
I don't want to tell you what I think of the result.........I'll let you e-mail be back and tell me when you're done!
Good luck, and be prepared to be wowed! Have your favorite song qued up for the christening, and watch your volume; will be louder! Your wife and dog will want to spend more quality time with you, since you have really cool, clean speakers again. In my case, I was lucky, my wife and I divorced, so I get to do this stuff whenever I want. I still have a great dog who loves jazz as much as I do! Good friends who like the same kinds of music are a hard find!