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    Widget has made a good suggestion with the 2216nd...

    Widget has made a good suggestion with the 2216nd woofers.

    Another possible woofer could be the JBL 1501FE. They also use cloth surround as the 2216nd, but they use a ferrit magnet and should be...
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    2405 + 2426 + 2123 should be a great match, but...

    2405 + 2426 + 2123 should be a great match, but 2226 wonīt do it for hifi.
    You will be always missing the last octave and will try to compensate by equalizing, using subwoofer etc...
    If it is...
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    The GIK Scopus is exactly 10" thick ;) But they...

    The GIK Scopus is exactly 10" thick ;)
    But they don`t have to be 2mē each panel, that might be true for membrane absorbers using steel plates. You will need several square meters of total absorption...
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    It seems you have a lot of experience with...

    It seems you have a lot of experience with acoustic panels allready.
    You probably know this product allready, but if not have a look:...
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    I guess the missing bass definition is caused by...

    I guess the missing bass definition is caused by your square room.
    A square room is horrible when it comes to room modes, as two modes are exactly at the same frequency and add up!
    To be honest,...
  6. Thread: 2441 distortion

    by Dr.db
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    No problem, thanks so far ;)

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

    by Dr.db
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    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...
  8. Thread: 2441 distortion

    by Dr.db
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    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...
  9. Thread: 2441 distortion

    by Dr.db
    Replies
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    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...
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    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...
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    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...
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    How do you like those 2123īs ? :)

    How do you like those 2123īs ? :)
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    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. ...
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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,...
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    Looking forward to hear your impressions :)

    Looking forward to hear your impressions :)
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    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...
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    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
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    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? :)
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    Hi Earl, thanks for this very clear statement!...

    Hi Earl,

    thanks for this very clear statement! :)
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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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    Thanks for sharing your data, very inspiring! :)

    Thanks for sharing your data, very inspiring! :)
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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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