replacing a woofer in JBL L890

Hi guys,

Newbie here. I just recently purchased (last week) a pair of JBL L890's. Anyway, they arrived and I was very unimpressed with the sound. Come to find out that one of the woofers is bad. JBL is sending me a replacement. How difficult is it to swap the woofer? I really have no idea how to do this. I was also a little upset with their customer service. I was sent to seven or eight people before I got someone that could help me. Thanks everyone. Looking forward to responses.


Thank you , Neil

You did pretty good by getting a fresh woof sent to you, here's hoping that's going to fix it. While you're waiting you could try swapping 2 woofers around to see if a different one works in that hole. Be sure to keep the wiring color scheme correct.

All you need is the correct tool for the screws holding it in, takes about 5 min to replace one.

Thank you, I will try that tonight when I get home. Score one for the little guy I guess :)

As I recall, those use the star-headed furniture screws.

I was able to take out the woofer tonight. It was a very easy job. I did not try one of the others, but will. Amazing to me how badly one bad speaker was making the whole cabinet sound.

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Originally Posted by wvtrumpet

I was able to take out the woofer tonight. It was a very easy job. I did not try one of the others, but will. Amazing to me how badly one bad speaker was making the whole cabinet sound.

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Which is why I was curious about whether the woofer is really the problem. A bad crossover could cause the same symptoms. Swapping in a different driver will rule that out.

I took the old sub completely out of the cabinet and I hooked it up with alligator clips to the wires on my other speaker. Same thing, very garbled distorted sound. Glad its not the wiring and its the sub, so i can at the least change things out. Glad to have help here. Thank you!!!!

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Originally Posted by wvtrumpet

I took the old sub completely out of the cabinet and I hooked it up with alligator clips to the wires on my other speaker. Same thing, very garbled distorted sound. Glad its not the wiring and its the sub, so i can at the least change things out. Glad to have help here. Thank you!!!!

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Umm - its a woofer, not a "sub"

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Originally Posted by hjames

Umm - its a woofer, not a "sub"

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You sir are correct. Quick question: Will it hurt playing the speaker without the second "woofer" hooked up?

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Originally Posted by wvtrumpet

You sir are correct. Quick question: Will it hurt playing the speaker without the second "woofer" hooked up?

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As long as you avoid any shorts from the dangling wires it won't "hurt" anything. But the crossover won't behave the same with a different load, so they won't sound quite right.

Quote:

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Originally Posted by wvtrumpet

You sir are correct. Quick question: Will it hurt playing the speaker without the second "woofer" hooked up?

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You sir, are a trumpet (grin) ...
Some of us audio geeks are women ...

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Originally Posted by hjames

You sir, are a trumpet (grin) ...
Some of us audio geeks are women ...

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Sorry :o:

Got the new woofer, put it in...Works great!!! Fantastic sounding speakers. Amazed out how messed up they sounded with the bad driver...