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  1. In my Experience with using DC Biasing caps one...

    In my Experience with using DC Biasing caps one is slightly better off ( when trying to combine values ) to get them closer in size to each other ( rather than say your 27uF + 1uF example ).

    It's...
  2. Hi, The displayed schematic belongs to Giskard...

    Hi,

    The displayed schematic belongs to Giskard ( who no longer posts here ) > I merely referenced it as a good starting point to the thread originator.

    Regardless; I do use a Fostex 945N bullet...
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    Why not just download REW ( Room EQ Wizard ...

    Why not just download REW ( Room EQ Wizard ) for whichever computer type that you run.

    Setup ( the recommended ) test-jig needed to measure TS parameters and then have at it.

    By far , getting...
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    Very Nice Looking Rob! :)

    Very Nice Looking Rob!

    :)
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    Great Stuff there! :)

    Great Stuff there!

    :)
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    FWIW, A few decades back I moved all my PRO...

    FWIW,

    A few decades back I moved all my PRO stuff to 1/4-20 T-Nuts + Fillister headed bolts.

    1/4-20 stuff was simply a lot easier to find at the time.

    :)
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    The 30923 attenuator circuit is a very useful way...

    The 30923 attenuator circuit is a very useful way to reduce the midrange based "horn-shout".

    Unfortunately, it can't address the HF deficiencies of the 806 driver.

    Worth noting here GDM ( from...
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    Yes Richard, As far as I know, only Parts...

    Yes Richard,

    As far as I know, only Parts Express stocks the Peerless driver that I'm referring to. In fact there are times I think it was a prodcut made just for them ( though I don't know that...
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    Yes the larger drivers are preferable /...

    Yes the larger drivers are preferable / unfortunately, they physically don't fit in the allotted space.

    The pancake type 902's from Altec or GPA are the best upgrade.

    Routing out the back panel...
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    Personally, I doubt it's worth it ( refitting an...

    Personally, I doubt it's worth it ( refitting an 806 driver with a GPA diaphragm ) .

    The 806a drivers problem is that it's less efficient than an 802 or 902 ( plus it's more or less a 12 ohm...
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    Cool, will send a PM within a few minutes! :)

    Cool, will send a PM within a few minutes!

    :)
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    Hi Chas, Thanks for the offer ( I'd like to...

    Hi Chas,

    Thanks for the offer ( I'd like to take you up on some version of that ).

    So, I'm wondering if I might enlist your help as an active listener ( just you listening to your own system...
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    Thanks! Chas for weighing in. Did you buy the...

    Thanks! Chas for weighing in.

    Did you buy the 8 or 16ohm GPA 902's to replace the stock 806a ?

    I know the available depth ( from 811 horn- flange ) to the back wall is limited, I don't suppose...
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    You might want to read all the comments made by...

    You might want to read all the comments made by LHF member "Chas" about his Valencias.

    He changed out the horn drivers ( for a pair of GPA 902-8a's ) and has been very enthusiastic about these...
  15. Thread: Interesting...

    by Earl K
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    Hi Admins, There's a fellow ( over at AK ) who...

    Hi Admins,

    There's a fellow ( over at AK ) who would like to join the LHF clan ( + who doesn't appear to be a Ruskie spybot or anything sinister ).

    See HERE!


    :)

    PS; I guess I should...
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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...
  17. 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 .

    :)
  20. 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...
  21. 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...
  22. 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.

    :)
  23. 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 !!!

    :)
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