LS 50 Tweeter Distortion
Heymack
Posts: 4
Greetings, I have a pair of LS 50's and one of them has a lot of static/distortion coming from the tweeter. Naturally, I swapped the two speaker's tweeters, thus have determined that tweeters are fine (static remains in original speaker). I also swapped speaker wires from L to R and vice versa....noise still in original speaker. Finally, I tried unplugging and replugging all patch cords to and from all components, still with no improvement.
Is it safe to assume my problem is with the crossover? Is there anything else that could cause the distortion? Is the crossover the little circuit board on the back side of the binding posts where all the speaker wires attach? I really want to get this fixed inasmuch as it is unbelievably annoying.
Thanks for your help.
Is it safe to assume my problem is with the crossover? Is there anything else that could cause the distortion? Is the crossover the little circuit board on the back side of the binding posts where all the speaker wires attach? I really want to get this fixed inasmuch as it is unbelievably annoying.
Thanks for your help.
Post edited by Heymack on
Comments
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Nobody can help?
Four days and not a single response....pretty sad. -
Lack of response likely due to lack of familiarity with your model Polk and that you've done all the basic troubleshooting.
Yes, the circuit board is the heart, if not all, of the cross-over. It's likely that Ken Swaugger, Polk CS, can dig up a schematic and mail it to you.
Would there happen to be an adjustable resistor (pot) on it?More later,
Tour...
Vox Copuli
Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb
"Death doesn't come with a Uhaul." - Dennis Gardner
"It's easy to get lost in price vs performance vs ego vs illusion." - doro
"There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD -
Tour has offered you good advice.
Do you have another amp or speakers you can use for testing? The problem might be in your amp and not the speakers.Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
Do you have another amp or speakers you can use for testing? The problem might be in your amp and not the speakers.
Wouldn't the problem, staying with the original speaker after changing L to R and R to L speaker wires eliminate this concern? I thought the same thing too...that the problem might be with a receiver channel or a bad cable. When doing this, I disconnected, inspected, swapped and reconnected every wire.
Tour2ma, I have no idea what an adjustable resistor is, but when I removed the plate on the back of the speaker, I didn't see anything adjustable. While inspecting the "board" all of the connections were clean and tight. -
Ah yeah, you're right....sorry. Call Ken Swauger at Polk, he's a crossover guru.Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
Just thought there might be a potentiometer on the board.
Please let us know how it goes... Good Luck.More later,
Tour...
Vox Copuli
Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb
"Death doesn't come with a Uhaul." - Dennis Gardner
"It's easy to get lost in price vs performance vs ego vs illusion." - doro
"There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD -
Good news, after talking to Ken, I ran a couple tests and it turns out that it was not a bad tweeter. Instead one of the drivers must have come loose and was vibrating (or something) because after I swapped the suspect driver with one from the other speaker all unwanted noises ceased.
Thanks to all.
