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  1. #16
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    Re: look at this beast!!!

    yuck







  2. #17
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    Re: look at this beast!!!

    Quote Originally Posted by Quentin Jarrell View Post
    Just a quick bit of info until I get time to put it up in my section. The driver uses MMAG technology (think older striker pro with clear cap). It uses 25mm thick plates the main magnets are 270mm OD and the Diode magnet is 220mm. The current coil in it is an "SPL" coil to give it massive amounts of motor force. In this configuration it is around 2,800.
    Could we see the complete T/S sheet to support your claim of 2200 BL^2/Re?

    Quote Originally Posted by Quentin Jarrell View Post
    However with this big 8 layer 95mm long coil there is a down side, inductance. Which we all know kills top end bass. Plus it just has too much force for its own good. The spider pack is twice as hard as an IA Warden and still moves ~15mm one way free air on 500watts. Efficiency rating on this set up is ~92 1w/1m and ~99 at 2.83 volts/m
    I will be tearing it down soon and putting in the "normal" MMAG coil which will give it a motor force factor around 400 and offer 42.5mm of one way linear Xmax. By June I will have engineering complete and tooling made for soft parts that will offer upwards of 60mm one way linear Xmax which will be needed to support the motor offerings that will be avaliable this fall. In the mean time this motor, if Klippel testing goes good, will be offered in beta form with 12 spoked baskets which offer ~32.5mm throw one way which i have Klippel graphs on and will be posting soon.
    Same inquiry as above. Could you share your projected T/S list or basic FEA data (perhaps some flux analysis) and graphs so we can see such a strong motor on paper?

    Thanks,



    Electrodynamic
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  4. #18
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    Re: look at this beast!!!

    Magnetar thread at ssa




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    Re: look at this beast!!!

    I feel a war brewing. Dss vs sundown woot woot!




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    Re: look at this beast!!!

    I don't know why he hasnt posted anything about this in his section tbh.




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    Re: look at this beast!!!

    Quote Originally Posted by shauncox26 View Post
    I feel a war brewing. Dss vs sundown woot woot!
    What do you mean by that? Jake hasn't been in here. I am being honest and sincere with wanting to see those figures. I haven't seen anything near that high...ever...and would like to see it. That's all.



    Electrodynamic
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    Owner Stereo Integrity
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    Power handling is not a power requirement! Don't install suckage!

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  11. #22
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    Re: look at this beast!!!

    It won't be Klippeled with coil for the reasons already posted. I have some FEA modeling I can post if interested. Just remember BL is a product of B field and length of wire in the gap. Your typical big 270mm OD drivers with a 25mm thick plate are achieving high 20's. This driver has 50mm of top plate plus it's frenge field. So you are looking at nearly the entire 95mm of coil being saturated in magnetic flux. It's nothing magical it just has twice the magnetic gap area as an over hub design with this coil.

    I have FEA models of the daily coil as well. I'll post'em all in my section.




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    Re: look at this beast!!!

    beastly beast is beastly



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  15. #24
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    Re: look at this beast!!!

    nice



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    Re: look at this beast!!!

    How is the sub coming along Q?




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    Re: look at this beast!!!

    pure nastyness



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    Re: look at this beast!!!

    Quote Originally Posted by Quentin Jarrell View Post
    It won't be Klippeled with coil for the reasons already posted. I have some FEA modeling I can post if interested. Just remember BL is a product of B field and length of wire in the gap.
    I wasn't asking for an explanation of where the term BL comes from. I was asking for a T/S list (not Klippel data) to see if you were referring to the 2200 figure as BL^2/Re or where you were coming up with that from.

    Quote Originally Posted by Quentin Jarrell View Post
    Your typical big 270mm OD drivers with a 25mm thick plate are achieving high 20's.
    Are you talking about BL^2/Re when you say "achieving in the high 20's"? The little 2.5" coil SPL Obsidian prototypes we built a year ago are near 150. Stock OA's are at/near 90.



    Electrodynamic
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    Owner Stereo Integrity
    Co-owner Obsidian Car Audio
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    Power handling is not a power requirement! Don't install suckage!

  19. #28
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    Re: look at this beast!!!

    Kind of lame to post it up next to a Dcon.




  20. #29
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    Re: look at this beast!!!

    Quote Originally Posted by garychurch84 View Post
    http://m.youtube.com/results?q=dss%20magnetar&sm=3

    If I can remember correctly I think their gonna be 5000 rms
    I'm not sure what an RMS is, but if this woofer only has a 4" coil it will have thermal limits of under 2000 watts and an 8" spider landing 12 spoke frame will make excursion rather limited.




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  22. #30
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    Re: look at this beast!!!

    Quote Originally Posted by hispls View Post
    I'm not sure what an RMS is, but if this woofer only has a 4" coil it will have thermal limits of under 2000 watts and an 8" spider landing 12 spoke frame will make excursion rather limited.
    Yes I was incorrect with my statement.I'm sure "Q" cleared that up in a later post




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