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  1. Replies
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    Update

    Update:

    Equipment on the way according to fedex folks.
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    Glad to hear there's been apparent progress made...

    Glad to hear there's been apparent progress made but what, exactly, does "about ready to ship" mean? Anyway to obtain a slightly less nebulous actual commitment on a ship date? As a customer I...
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    Glad to see you are communicating again!

    Hey Ken,

    Now that you have spare time to post on here I'm guessing you are done with the 128H-1's we sent you almost a year ago? You had the paid invoice for some time now and the promises of...
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    Ah yes :-)

    Ah yes :-)
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    Hey Rob - thanks. I am tending to lean towards...

    Hey Rob - thanks. I am tending to lean towards Fs as the culprit in this scenario. Been learning quite a bit about speaker design and T/S parameters over the last week or so. Good stuff. Spoke...
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    All good points but nothing has changed in...

    All good points but nothing has changed in reference to positioning (etc.). So it really is an apples to apples comparison. I'm trying to use process of elimination in my troubleshooting to isolate...
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    Yeah I have one more component to check upstream...

    Yeah I have one more component to check upstream in the chain but have been subbing in components from a different working reference system, Last component to swap out is the amp but my gut tells me...
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    Thanks Richard. Yeah def a possibility the wrong...

    Thanks Richard. Yeah def a possibility the wrong foam was used. Also thanks for the t/s info. I found the table you were referencing. Never knew that information was out there. Learn something...
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    Thanks Steve - I'll give them a look.

    Thanks Steve - I'll give them a look.
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    4412 Weak Bass (re foam issue?)

    Hello fellow JBL enthusiasts!

    Hopefully this post can help other JBL folks as well. I purchased a pair of 4412 studio monitors new about 25 years ago. Noticed some foam rot on the 128h-1 woofers...
  11. Thread: 4412 Recap

    by Paul_M
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    4412 Recap

    Well I've been contemplating a recap of my 4412 x-overs for a while. I'm the first and only owner of these sweet 3-ways. Only thing I've had to have done over the years is a refoam of the woofer. I'm...
  12. Thread: 4412 Rebuild

    by Paul_M
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    Well after cycling many times of both lpads it...

    Well after cycling many times of both lpads it seems to be a bit smoother (less grainy). Any chance a rebuild of the N-4412 would help or hurt the situation? I'm guessing age gets to the caps after...
  13. Thread: 4412 Rebuild

    by Paul_M
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    Yeah I fogot that one - I'll give that a try....

    Yeah I fogot that one - I'll give that a try. What about some cleaner (i.e. deoxit, etc.) on the pots? Not sure if there is any opening on them to get the cleaner in or not.

    PM
  14. Thread: 4412 Rebuild

    by Paul_M
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    2,790

    4412 Rebuild

    Hoping somebody will have a comment or advice. I have a pair of original 4412 monitors. I bought them new ~20 years ago. To my ears they seem to sound a bit scratchy these days. I have already had...
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