Martin Logan CLS panel distortion


Dear Audiophiles,
My original Martin Logan CLS speakers developed harsh distortion at higher spectrum of frequencies (mostly audible at high pitched soprano voices). Distortion disappears at low volumes of sound. Are my panels getting too old (they could be 10 years old, I am a third owner)? Is there a way to clean/tighten them (the panels, not owners ;-)? Your comments and suggestions will be appreciated. Thank you.
meta

Showing 4 responses by johnk

Martn logan pannel are just like airfilters they remove airborn particals from the room ,you will be lucky to get 7 years out of the pannel before dust dirt and grease from cooking loads them up .Even if they are away from kitchens and fireplaces.I got so sick of failing pannels in my many martin logans glad I moved on .
Jim when they are running they filter the air ,and yes I have owned CLS2Z and many other martin logans could care less if you believe me .Ever here of electrostatic air filters?Ask any HVAC instaler.Also cooking grease travels the the air the speakers can have problems even in another room . I feel sorry for you that you are so uptight .Take care and happy listening .JK
Of the 8 systems ,5 gave me trouble I have owned M/L for over 14 years .Most where problems with the pannels wrinkled diaphrames ,missing parts, non funtioning woofer,cosmetic issues .Buzzing pannels.My Prodigy was the worst had 2 wrinkled pannels ,missing 8 screws had damaged trim was missing the nuts that hold the binding posts on they just spun.Also 1 of the second pair of replacement pannels where wrinkled.M/L took care of the problems but I had to repair the prodigy in my home .Took 3 months and many calls to sort it out .My dealer ended up returning this prodigy back to M/L .Then I purchased the odessy and descent sub both I had no problems with .Maybe you are so in love with M/L you can not bear to hear the truth from a long term owner .JK
My other post states , reliability problems with M/L? asking if others have too ,also I did not say failed but wrinkled and buzzing pannels are not usable.You might allready have reduced the hi frequincy responce of your pannels due to build up ,happens slowly so is hard to notice unless you hear a newer logan.If you look up the posts for martin logan you will see others have had problems with there pannels.I have had lots of experiance with M/L.I have a few friends that still use there speakers.My good friend is the local dealer .Just giving you the facts as I have experanced them, stay indenial if you will .JK