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    FWIW ( likely some really tedious info ), ...

    FWIW ( likely some really tedious info ),

    According to the spec sheets;

    The 2425x model used a ring of pure silver ( surrounding the pole piece ) to offset voice-coil inductance ( it shared...
  2. Since this thread is about value, I need to point...

    Since this thread is about value, I need to point out that you'll get more $$ ( especially when selling on eBay ) if you post pics that are right-side-up .

    :)
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    Thanks for Posting! Beautiful Work! :) ...

    Thanks for Posting!

    Beautiful Work!

    :)

    PS; my guess is the compression driver is more likely an 802C ( based on the raised // embossed // styled // Altec lettering )
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    The driver connector is a 1/4" male spade . :)

    The driver connector is a 1/4" male spade .

    :)
  5. OK, back to the beginning; When I read through...

    OK, back to the beginning;

    When I read through the text seen within that pic I don't see anywhere > where Altec used the word "ONLY" .

    I don't even see ( or agree that ) the word was being...
  6. The only 3rd order networks that Altec had ( that...

    The only 3rd order networks that Altec had ( that I'm aware of ) was the HiPass section for the M19 ( N1201-8a ) and some of the networks used for the later models 604-8xx's .

    All the networks I...
  7. FWIW, here's one simulation I created using...

    FWIW, here's one simulation I created using available resources that put the N500E to the test.

    87238

    One can see the actual crossover point is a lot higher than 500hz.

    :)
  8. Can you please point me to a link that states...

    Can you please point me to a link that states this ( bolded words in your posts ) ?
    ( - I'd like to try to puzzle-out that directive ).

    Having said that, the N500E IS notably different from the...
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    On a bit of a tangent, I believe it's notable...

    On a bit of a tangent, I believe it's notable that after almost 20 years of LHFs being in existence, we were never exposed to ( by Giskard/Techbot/G.T. ) any official curves/specs for any of JBL's...
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    87174 BEST lens "look" EVER!!! Very...

    87174


    BEST lens "look" EVER!!!

    Very Samuri !!!

    :)
  11. Very Nice! That response curve could easily be...

    Very Nice!

    That response curve could easily be used by JBL in their marketing efforts ( so, big pat on the back ).

    Did you follow any of the advice/protocols that resulted from that thread (...
  12. Thread: Jbl d155c?

    by Earl K
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    Look in the early 1970's (Pro) catalogs. That...

    Look in the early 1970's (Pro) catalogs.

    That coax is called a 2150.

    :)
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    I believe I've seen a ground swell of new members...

    I believe I've seen a ground swell of new members registering with suspiciously closely related names ( over the past couple of days ).

    It seems to me they are most likely aliases for spam-bots...
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    Hi, Kelly's account has been inactive for a...

    Hi,

    Kelly's account has been inactive for a long time & therefore it was deemed to be surplus > and so it was "retired" into a Guest status .

    Ask a moderator or Administrator if his old email...
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    Nice work Rob! :)

    Nice work Rob!

    :)
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    Yes, the only difference between the 2 802G...

    Yes, the only difference between the 2 802G models are which diaphragm was installed.

    Also, the 808-8B shares the same body and phase plug as the 802G ( and the 808-8B might be easier to find )....
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    There are some A7 plans in the Altec section of...

    There are some A7 plans in the Altec section of the library.

    Are they not sufficient for your purpose?

    FYI, I believe they are the most comprehensive that you'll find ( at least publicly ).
    ...
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    Thanks Mac! :)

    Thanks Mac!

    :)
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    Would a 2345 fit ( width-wise ) into your...

    Would a 2345 fit ( width-wise ) into your existing baffle ?

    To answer your question directly, yes , I would ( if it was me ) look at adding an actual radial type horn into your setup.

    2345...
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    Thanks for the pics Grumpy! :)

    Thanks for the pics Grumpy!

    :)
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    Yes, thanks Grumpy for shedding some more light...

    Yes, thanks Grumpy for shedding some more light on the specs for the 2216nd-1.

    The limited application of aquaplas ( you mention ) is really interesting.

    Is that aquaplas 2.5" wide strip on...
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    The refoams look great !! :)

    The refoams look great !!

    :)
  23. Turbo-Charge that Array 1400

    kelossus,

    I do forget if you have any "diy DNA" so please forgive if the following can't apply.

    I'd recommend a read of JuniorJBL's thread An Array "Epiphany" ( granted my title here is a...
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    Hi, If you look at FaitalPRO spec sheets ( for...

    Hi,

    If you look at FaitalPRO spec sheets ( for 18" woofers ) they spec the moving mass ( Mms ) as well as the static mass ( Mmd ).

    Quick subtraction shows that the airload for a typical 18" to...
  25. Alan, I'm pretty sure that they haven't been...

    Alan,

    I'm pretty sure that they haven't been published ( "Giskard>4313B" used to be the provider of that sort of info > but he's moved on ) .

    OTOH, you've mentioned previously that you have a...
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