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  1. Replies
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    Hi Rob, That is pretty strange indeed, one...

    Hi Rob,

    That is pretty strange indeed, one would expect an exact same internal design between the two. Might be something related to an evolution of the build process that could also appear...
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    Good find on the SL diaphragms! I cannot read...

    Good find on the SL diaphragms!

    I cannot read the impedance measurement, the image got resized too small by the forum engine.
    Are your Be diaphragms 8 ohm versions?
    What MC2 models are you...
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    Nah, tik tok is the new shit! :barf:

    Nah, tik tok is the new shit! :barf:
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    I am using 120cm x 120cm panels on each side...

    I am using 120cm x 120cm panels on each side myself (4 120x60 panels in fact)
    The vertical dimensions let them cover the woofer reflection, and the horizontal one does increase the "reflection free"...
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    Hello Tom, I have my M2 mockups pretty close...

    Hello Tom,

    I have my M2 mockups pretty close to the side walls (around 30cm).
    I first tried a lot of toe-in (probably around 25°, still nowhere near as pronounced as your corner horns) but the...
  6. Replies
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    What measurements would you need? spacing...

    What measurements would you need?
    spacing between pins?
    The difficult part to replicate will probably be the matching with the lower part of the horn.

    Regarding the female part, this is the same...
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    85490 "RoB 1" :D Very cool looking Robert!...

    85490
    "RoB 1" :D

    Very cool looking Robert!
    That is a one of a kind and very refined system for sure, and with these top components and well executed integration it is going to be top notch for...
  8. I would rephrase this as "this is a can of worms...

    I would rephrase this as "this is a can of worms since you end up correcting things you probably should not" :)
    Not talking about phase per se here, but the desire some might have to correct any...
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    It does! Thanks a lot :)

    It does!
    Thanks a lot :)
  10. Replies
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    I am looking for some info regarding a small...

    I am looking for some info regarding a small detail of the baffle, namely the baffle inset compared to the 45° sides:

    85359

    Here is the dimension I am looking for (top view):
    85360

    Any help...
  11. 100% agreed. Accurate crossover building cannot...

    100% agreed.
    Accurate crossover building cannot be done without reliable magnitude *and* phase measurements, and that is something an RTA simply cannot do, however expensive and precise it might be....
  12. Replies
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    Yes RoB, I think all of us M2 DIYers can be...

    Yes RoB, I think all of us M2 DIYers can be grateful to you :)

    SL diaphragm I presume. Hmmmm, passive crossover maybe?
  13. Thread: Help

    by pos
    Replies
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    The forum search engine has its limits, but as...

    The forum search engine has its limits, but as explained in my post above (#17, did you actually see it ?..) you can use google (and google image) for a site-specific search.
  14. Thread: Help

    by pos
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    Hello Pigboat, I am no expert, especially with...

    Hello Pigboat,

    I am no expert, especially with things like cabinet construction/refurbishing and passive crossovers, and I don't own any of these speakers.
    I also have no daughter, so take my...
  15. Thread: Help

    by pos
    Replies
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    Fortunately science is moving forward: these days...

    Fortunately science is moving forward: these days you can already clone better versions of two items in that list :D
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    did not meant to offend you :p

    did not meant to offend you :p
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    Hello jmpsmash, fun project! In your situation I...

    Hello jmpsmash, fun project!
    In your situation I think I would try something like this to mitigate the differences in directivity between the 15" and the 2397, and potentially raise the crossover...
  18. Thread: Project Widget

    by pos
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    That particular tweeter is not a diffraction slot...

    That particular tweeter is not a diffraction slot like the 2405, and albeit it shows a major pattern flit in the <10kHz range, it is not the case anymore above 10kHz where it gets both H and V...
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    The 2213nd-2 could be a good candidate as it...

    The 2213nd-2 could be a good candidate as it apparently sports the same TCR voice coil material as the 2216nd, which is supposedly the main responsible for its highly dynamic/uncompressed sound:...
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    Beware: TAD's 1.5" is 39mm whereas JBL's one is...

    Beware: TAD's 1.5" is 39mm whereas JBL's one is 38.1mm
  21. Directivity matching is a key aspect here. What...

    Directivity matching is a key aspect here.
    What I would do if I were in your situation would be to measure the horn's H and V directivity in that range and seek for the appropriate matching tweeter.
  22. Thread: D8r435al-1

    by pos
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    My guess: 435AL (obviously) 435Be 2431...

    My guess:


    435AL (obviously)
    435Be
    2431
    2435
    2430H (not the same driver as the D2430K)
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    Hello Joel Nice build! I think the first...

    Hello Joel

    Nice build!

    I think the first generation of DMS-1 had the smooth SL diaphragm. Don't know if each generation had specific EQ settings though...
    Regarding the 1400ND's, as these kits...
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    Initial rephase settings were directly translated...

    Initial rephase settings were directly translated from Crown official M2 settings, as reported by member 4313B.
    These were later adjusted to fit the actual measurement (in fact two independent...
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    Hello Daz Here is what Bruno Putzeys has to...

    Hello Daz

    Here is what Bruno Putzeys has to say about this (starting here) :


    Of course this is in the context of the hypex nc400, but I guess this could at least partly translate to your amps...
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