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  1. Thread: 2441 distortion

    by Dr.db
    Replies
    6
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    572

    No problem, thanks so far ;)

    No problem, thanks so far ;)
  2. Thread: 2441 distortion

    by Dr.db
    Replies
    6
    Views
    572

    Hi Richard, thanks a lot for your explanation....

    Hi Richard,

    thanks a lot for your explanation.

    Do you know if the TAD 4001 is significantly lower in distortion than a JBL 2441?
    They both share the same throat e.g. flare rate, so the TAD...
  3. Thread: 2441 distortion

    by Dr.db
    Replies
    6
    Views
    572

    Thanks a lot, great links!! So the main factor...

    Thanks a lot, great links!!

    So the main factor in reducing distortion is the 1,5" throat vs. the old 2" throat. As the 1,5" throat drivers have a more rapid flare rate, they will produce less...
  4. Thread: 2441 distortion

    by Dr.db
    Replies
    6
    Views
    572

    2441 distortion

    Iīve been told the 2441 drivers are not very low in distortion.
    What are the reasons for these distortions?

    What has been done in the more modern drivers to reduce distortion?
    Is there a...
  5. Replies
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    2,240

    A very interesting comparison. I own those 2123...

    A very interesting comparison.
    I own those 2123 myself, but no 2202 around...
    My impression of the 2123 is they have a lot of slam, punch etc.... But they have no low end at all, they are pure...
  6. Replies
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    2,240

    From a sheer spl point of view, two 15"s should...

    From a sheer spl point of view, two 15"s should outdo a single 18". So maybe itīs not fair to compare those setups?
    Changing the 2245 to a 2241 or 2242 wouldnīt change the shortage in cone area of...
  7. Replies
    185
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    20,567

    How do you like those 2123īs ? :)

    How do you like those 2123īs ? :)
  8. Replies
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    654

    I believe the E-140 shares the same basket and...

    I believe the E-140 shares the same basket and mechanical dimensions of the magnet.
    BUT the magnet on the E-140 is supposed to be magnetized slightly stronger resulting in a higher BL product. ...
  9. Replies
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    When using the 2123 midbass, you propably end up...

    When using the 2123 midbass, you propably end up with a little higher crossover on the 2397. I guess something between 1,0-1,2khz....
    When using the 2216 woofer your crossover was around 0,8khz,...
  10. Replies
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    20,567

    Looking forward to hear your impressions :)

    Looking forward to hear your impressions :)
  11. Replies
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    2,895

    Im sorry but I canīt comprehend your calculation....

    Im sorry but I canīt comprehend your calculation.
    An 18 inch cone has aprox. 50% more cone area than a 15 inch cone. If the 15 inch cone moves 1,5 times as far as an 18 inch cone it would move the...
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    If you take a look at the westlake audio BBSM-15...

    If you take a look at the westlake audio BBSM-15 it has the 2123 very close below the horn. Maybe 3-4"...
    The BBSM-15 doesnīt use a 2397 horn, but the horn protrudes just as much.

    On the other...
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    @Ian: I believe I have asked you before, but do...

    @Ian:
    I believe I have asked you before, but do you remember the distance between the top of the 2123 and the bottom of the 2397 horn back then?
    I imagine it would need a fair bit of distance to...
  14. Replies
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    20,567

    I believe this is a major factor. If the...

    I believe this is a major factor.
    If the off-axis dispersion drops significantly below the crossover, this could cause a thin sounding midrange. In the first instance we would blame the horn to...
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    @jmpsmash: Thanks for those insights. :) ...

    @jmpsmash: Thanks for those insights. :)




    I wonder how you have found that CD :D
  16. Replies
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    20,567

    Iīm just curious if you still enjoy your system...

    Iīm just curious if you still enjoy your system or if you have changed anything since your last post? :)
  17. Replies
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    1,291

    Hi Earl, thanks for this very clear statement!...

    Hi Earl,

    thanks for this very clear statement! :)
  18. Replies
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    Thanks all of you for the effort you have put...

    Thanks all of you for the effort you have put into this thread!

    I wasnīt aware of the difference in the freq.-response using the 2445 vs. 2446 throat-driver. Thanks a lot!!
    Iīm currently using...
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    1,291

    Thanks for sharing your data, very inspiring! :)

    Thanks for sharing your data, very inspiring! :)
  20. Replies
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    Hi Barry, appreciate your answer! :) I...

    Hi Barry,

    appreciate your answer! :)

    I would have thought a much bigger capacitor would be necessary... Something around 15uf and maybe 3mh for the inductor...
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    Yuichi A290 , which crossover ?

    Hi,

    if I would build a Yuichi A290 horn for my JBL 2441 drivers, is there a passive crossover I could use?

    It would be great to have a highpass around 650hz-700hz for the JBL 2441.
    Above...
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    Hi John, Your horns are of the newer...

    Hi John,


    Your horns are of the newer versions and the vertical height is bigger compared to the old version...
    Has westlake remained the other dimensions of the horn or have these changed too?...
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    484

    Thanks Dieter, that helps. If I understand...

    Thanks Dieter, that helps.

    If I understand this crossover correct, the highpass for the 475be consists of a 12uf capacitor and a 3mh inductor, correct?
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    JBL K2 , S7500 or S9500 crossover

    Hi,

    has anyone excess to the crossover shematic?

    Iīm interested in the 650hz highpass-filter for the 475nd.
    I believe this should also work for a 2450 driver...

    Best regards,
    Olaf
  25. Replies
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    You are correct, I didnīt notice there is just...

    You are correct, I didnīt notice there is just one pair of LE15Hīs. Feel free to use the LE15Aīs instead.

    If you use very low resistive coils/inductors on the woofers, it should be possible to run...
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