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    There are a few members who have heard them: ...

    There are a few members who have heard them:

    http://www.audioheritage.org/vbulletin/showthread.php?41071-Jbl-l100-classic


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  2. We are aware of the screw up and are trying to...

    We are aware of the screw up and are trying to correct it, though it may not be possible. Many other long time members including a number of our “lost” members like Zilch were also inadvertently...
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    Personally I like to say Graphene almost as much...

    Personally I like to say Graphene almost as much is I like to say aerogel!


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    Your English is fine. First, what is a JBL...

    Your English is fine.

    First, what is a JBL Boombox?
    Second, this site is not a JBL factory site and is primarily focused on vintage Lansing related items... newer designs are covered when they...
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    Well, there is your problem. Even in biamp mode,...

    Well, there is your problem. Even in biamp mode, you need to be able to adjust the relative balance between the midrange driver and the tweeter. You will need to correct your modified speakers.

    ...
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    This speaker is supposed to have tweeter and...

    This speaker is supposed to have tweeter and midrange level controls incorporated in the model label. The aluminum label also known as the foilcal has indications on it for the different settings. It...
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    I’m with Ed on this. Aesthetics aside, if you...

    I’m with Ed on this.

    Aesthetics aside, if you can get the tweeter up to standard seated ear height, or about 39” above the floor, you will usually find that as an improvement. Also, all things...
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    Exactly why I suggested it. If the Paragon is...

    Exactly why I suggested it.

    If the Paragon is working properly it should have solid bass down to 50-60Hz, and bringing in the JL below that should work well.


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    Reminds me of the Mark Twain quote about his...

    Reminds me of the Mark Twain quote about his death.;)


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    What exactly are you basing your hypothesis on? ...

    What exactly are you basing your hypothesis on?


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    That is a beautiful system. If you want deep...

    That is a beautiful system. If you want deep bass, I agree with Rob, the horn loading of the 150-4C woofers only exacerbates the low bass problem. The only way you’ll ever get deep bass is by adding...
  12. Thread: Wx-4505

    by Mr. Widget
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    That is a pair of very early 43XX series studio...

    That is a pair of very early 43XX series studio monitors. (Before the 43XX numbering system.) They are similar to the 4331 speakers and as you point out also similar to the first generation L200....
  13. Congratulations, your results look very good! ...

    Congratulations, your results look very good!


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    I rotated your KLH-100s. Interesting idea......

    I rotated your KLH-100s.

    Interesting idea... not entirely unlike the JBL L150. With the engineering resources of JBL, I'm pretty sure the L150 is the better speaker, but if your wife isn't asking...
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    I can imagine. The original 305 is no slouch...

    I can imagine. The original 305 is no slouch either.

    I’m considering the 708p speakers for my next small HT.


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  16. Having done a few myself and taking factory tours...

    Having done a few myself and taking factory tours at JBL (pre departure from Northridge) and at Meyer Sound, it is obvious that properly installing a diaphragm is not trivial. I doubt 80-90% of the...
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    “In my world we....” Oh, come on Barry.... in...

    “In my world we....”

    Oh, come on Barry.... in your world this never happens. 😉


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  18. Could be. It could also be due to improper...

    Could be. It could also be due to improper centering/alignment, or a partially damaged diaphragm due to wear/age.


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  19. Looking at those curves, since the vertical scale...

    Looking at those curves, since the vertical scale is set at 20dB per each delineation, any noticeable difference is actually quite extreme. If the software allows you to run it with 5dB per...
  20. You'll need an adapter to fit the threaded EV...

    You'll need an adapter to fit the threaded EV driver on the Altec horn. There are inexpensive adapters available, but I find most adapters negatively impact performance.


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    You don’t mention the woofers. Are they original?...

    You don’t mention the woofers. Are they original? What is the condition of their surrounds.


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    I have not yet heard the L100 Classics. At $4000...

    I have not yet heard the L100 Classics. At $4000 a pair they are not inexpensive, but by all accounts they are a solid performer. While many here have refurbished vintage speakers for far less, if...
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    In my opinion the potato mashers and other...

    In my opinion the potato mashers and other smaller horns are all a bit disappointing sounding. If the goal is to reuse the enclosures and keep all components in the boxes, I’d suggest going with...
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    The woofers may be fine, but I do not think EV...

    The woofers may be fine, but I do not think EV ever used those dust caps on the woofers for this speaker.

    Here is additional info on the Sentry III:...
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    Your discoveries align with my experience. The...

    Your discoveries align with my experience. The vintage JBL cone and dome tweeters and their crossovers are often not as good as the woofers.

    You've also discovered that the better sounding horns...
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