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  1. Replies
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    JBl 4648TH crossover schematics

    Hi,

    does anyone have the 4648TH crossover schematics?

    Thanks,

    Andreas
  2. Replies
    2,132
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    1,516,171

    Hi, one of my Synthesis Four / Performance...

    Hi,

    one of my Synthesis Four / Performance Series 904Ti-001 4" midrange drivers is defect.
    Does someone like to sell a working unit and would ship it to Germany?

    Cheers,

    Andreas
  3. Replies
    4
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    1,931

    Hi, I sent the worst unit to a repair shop....

    Hi,

    I sent the worst unit to a repair shop.
    They disassembled the cone and found a deteriorated Neo magnet with loose particles.

    Anyone having at least one silver 904Ti-001 for me?

    Cheers
    ...
  4. Replies
    4
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    1,931

    Dear Earl, thank you very much. I tried it....

    Dear Earl,

    thank you very much.
    I tried it. One of the two defect units became better.
    Depending on the driver tilt and position I can still hear noise.
    The worst unit now has got back a Fs,...
  5. Replies
    4
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    1,931

    904Ti 4" midrange debris?

    Hi,

    I have bought an used Synthesis Four FCR set.
    2 of the 3 904Ti midrange drivers produce audible distortion and the moving assembly is somehow stuck in the magnetic air gap.
    It doesn't sound...
  6. Replies
    3
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    1,909

    Hi Ken, any reply? Cheers, Andreas

    Hi Ken,

    any reply?


    Cheers,
    Andreas
  7. Replies
    3
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    1,909

    Please clean up your PM inbox! ;-)

    Please clean up your PM inbox! ;-)
  8. Replies
    3
    Views
    1,909

    Reconing 2226JPL to 136HS or 1500GTI

    Hi,

    I had bad luck and bought a pair of 4648A with 2x 15" 2226JPL, which have heavily stressed and deformed spiders.
    I like to recone the 2226JPL and wonder which alternative and fitting recone...
  9. Hi, I have invested into a modern Gen 6...

    Hi,

    I have invested into a modern Gen 6 Mustang...
    No carb hassle anymore. I save the classic topic for later.

    Regarding both mentioned websites, l watch them from time to time. I got a few of...
  10. I had to sell my chromebumper C3 convertible a...

    I had to sell my chromebumper C3 convertible a few years ago.
    I still miss the gasoline fumes, sound, vibration and vibe.
    It's about charm and the respect what the engineers could do at their...
  11. Hi, thanks for the comprehensive feedback....

    Hi,

    thanks for the comprehensive feedback.
    They are heritage collectables and potentially the first official passive JBL 3way studio monitors ever. I'll restore and keep them. They are from a...
  12. � Harman International, Courtesy Mark Gander and...

    � Harman International, Courtesy Mark Gander and John Eargle

    "JBL would get its foot in the door of the broadcast and studio segment of the professional market in the 1960's as well. As in the...
  13. Hi Rob, thank you. Is the D50SM the first...

    Hi Rob,

    thank you.
    Is the D50SM the first JBL studio monitor?
    It seems that the 4320 came later.

    Cheers,

    Andreas
  14. D50SMS8 3way monitor with LE15A 375 075 original product?

    Hi,

    I´ve just picked up a pair of vintage JBL 3way monitors today and come back to the forum after a very long pause. I hope you all are doing fine!
    I´m a JBL fan since age of 10 or 11. At my...
  15. Thread: Sub18

    by old-fashioned
    Replies
    32
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    51,570

    Hi, can someone share the EQing and filters of...

    Hi,

    can someone share the EQing and filters of the Sub18 with me, please?
    Where do I get the 2269H for a good price?

    Cheers,

    Andreas
  16. Replies
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    6,077

    Hi! I got a new-like pair 136HS, only. The...

    Hi!

    I got a new-like pair 136HS, only.
    The driver looks like a 2226H with poron fiber cone, no Aquaplas coating.
    Le is significantly lower than a 2226H. Mms is around 35g higher.

    BR

    Andreas
  17. Replies
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    6,077

    I don´t have a pair of 2235H and I don´t think...

    I don´t have a pair of 2235H and I don´t think they are better.
  18. Replies
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    6,077

    136HS or ME150H for 4430 clone?

    Hi,

    I´m planning my 4430 clones at the moment.
    Do you prefer the 136HS or ME150H for it?
    What are the main differences between both 15" woofers?

    BR

    Andreas
  19. JBL L80T GI crossover and cabinet versions

    Hi!

    I built up a worn pair of old JBL L80T GI today.
    In the last 5 years I really had a lot of JBL speakers from the 70s until today.
    Many of them had little bit "unusual" crossover alignments...
  20. JBL Synthesis SAM3VA Xover schematics and measurements

    Hi!

    I´ve bought used JBL Synthesis 3x SAM3VA and 2x S2S for less than 1400 Euro.
    Now I´m a little bit confused, because the measured frequency response curve is very different above 4kHz compared...
  21. Replies
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    4,621

    Thanks Widget! Are measurements and comparisons...

    Thanks Widget!
    Are measurements and comparisons of the old compression drivers with horns+lenses available?
    Do you know why they used those horns with the low gradient function? The 2344 horns for...
  22. Replies
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    4,621

    http://audio-heritage.jp/JBL/speaker/l45flair.html...

    http://audio-heritage.jp/JBL/speaker/l45flair.html

    Anyone tried one of these combinations?

    What is the best mid-high horn/compression driver set?
    There are so many versions...
  23. Replies
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    Hi, I know about it and the owners manual....

    Hi,

    I know about it and the owners manual.
    I´m looking for information which woofer is most suitable for the L-45 cabinet!!!

    BR

    Andreas
  24. Replies
    5
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    Best woofer for L-45 Flair

    Hi,

    I hope you can help me quickly.
    I can have a pair of L-45 Flair with the LE14A, LE175DLH and 2405H.
    Is the LE14A the best 15" choice for those days and for the given L-45 cabinet?

    Thanks,...
  25. Replies
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    I´m married, man!!!!!! I´ve been invited a few...

    I´m married, man!!!!!!
    I´ve been invited a few times for a k-bar... Playing the dice, many many bottom-ups...
    The ladies are very interested in foreigners, not only because of the money.
    No...
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