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Thread: Project M2 DIY Thread

  1. #586
    Senior Member pos's Avatar
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    Stunning work Leslie !

    Quote Originally Posted by lesliew View Post
    mid range and bass will be directed to a Sub 18.
    everything under 800Hz will be handled buy the subs for the center channel?

  2. #587
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    Quote Originally Posted by pos View Post
    Stunning work Leslie !


    everything under 800Hz will be handled buy the subs for the center channel?
    Correct, that's how we planned it.

  3. #588
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    Quote Originally Posted by baldrick View Post
    Now with paint
    Out of curiosity, is your waveguide sitting a little proud? I ask because it seems, to me, that ribs on the back of waveguide would hit the opening you provided. I seem to recall ours needing to be a bit wider that what it appears to be on yours. Everything else looks nice though.

  4. #589
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    Quote Originally Posted by lesliew View Post
    Correct, that's how we planned it.
    While we cloned the Sub 18 (did you as well or did you just obtain factory units?) I never even checked the response above 120Hz. How well will they do up to 800Hz?

    Your craftsmanship is outstanding! Somebody is very lucky to have you building them!

    -Steve

  5. #590
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    Quote Originally Posted by sguttag View Post
    While we cloned the Sub 18 (did you as well or did you just obtain factory units?) I never even checked the response above 120Hz. How well will they do up to 800Hz?

    Your craftsmanship is outstanding! Somebody is very lucky to have you building them!

    -Steve
    Steve,

    Whilst I was asked to come up with a Sub 18 clone and might still do so, I actually found someone in CA selling 3 of them factory new for $1799 each so it really didn't make much sense. Can't really comment on the SUb 18's performance in that range since I didn't get to test it.

    Now if I could find a couple of JBL’s 2269H for a lot less than what their going for at $900 a piece I wouldn't have hesitated.

  6. #591
    Senior Member baldrick's Avatar
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    Testfit of horn and woofer:
    Attached Images Attached Images  

  7. #592
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    Looks good. Round thing in round hole while rectangle thing in rectangle hole!

  8. #593
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    Looking good!!

  9. #594
    Senior Member pos's Avatar
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    Quote Originally Posted by sebackman View Post
    D2 and 2451SL in the same grapgh.
    Attachment 80368
    Hello Rob,

    Would you by any chance have a higher resolution picture of that measurement (ie not compressed by the forum publication engine), possibly including the <500Hz range, or maybe a data export from dats?

  10. #595
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    Hi POS,

    Email sent with all data. Share as you see fit.

    Kind regards
    //Rob
    The solution to the problem changes the problem.
    -And always remember that all of your equipment was made by the lowest bidder

  11. #596
    Administrator Robh3606's Avatar
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    Could you please post the 2451SL on the horn no EQ?? Would love to see just how close the 476 Mg and the 2451SL measure on the same horn. My guess is close but would really like to see an actual measurement.

    Thanks Rob
    "I could be arguing in my spare time"

  12. #597
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    Quote Originally Posted by Robh3606 View Post
    Could you please post the 2451SL on the horn no EQ?? Would love to see just how close the 476 Mg and the 2451SL measure on the same horn. My guess is close but would really like to see an actual measurement.
    Hello Rob,
    If you PM me your email address I can forward you Rob's measurements.
    I was looking for impedance measurement so I did not find what I was looking for there, but your mileage may vary

  13. #598
    Administrator Robh3606's Avatar
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    Hello Pos

    Will send you a PM in the mean time as another reference here is a 476Mg on the M2



    Rob
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    "I could be arguing in my spare time"

  14. #599
    Senior Member pos's Avatar
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    Thank you, that is a nice complement to Rob's impedance measurement here:
    http://www.audioheritage.org/vbullet...303#post413303

    Surprisingly the peak positions are closer to the D2430K than to the 16 ohm 2451SL...

  15. #600
    Senior Member pos's Avatar
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    A question for those how 3D-printed their ports based on the STL files.
    What printing parameters did have success with? (material, infill, layer height, thickness, etc.)

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