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Lithium

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  • dkalsi
    replied
    EDIT - (Deleted - my question was for the MTM version)

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  • Chris Roemer
    replied
    none at all

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  • cornajatwa
    replied
    I’m about to do this design but would like to use 3/4 inch hardwood. Pretty sure I know the answer to my question but just want to be 100% before committing.
    This design calls for 280 cubic inches behind the woofer. I’ll need to change the dimensions to do this if I’m to use 3/4. I know the baffle’s width needs to stay the same. I also know the tweeter’s position on the baffle with respect to the top and sides needs to stay the same. As does driver spacing.
    Having said all of this, is there a reason I shouldn’t make the cabinet a little taller and/or deeper to provide those 280 cubic inches?
    thank you in advance

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  • prxprx
    replied
    Wow, just did some first time listening and I can only conclude that this is the best design that I've build! I absolutely LOVE the 'voicing' of the Lithium. The BSC really helps I guess because it really is a fun sound. I think it's amazing to have such a full bodied sound coming from such a small box. They can play quite loud too!

    i'm actually starting to look for something like this for my main project, an active DSP controlled 2-way.

    is there any other driver that performs this well in such a small cabinet, but that offers a slightly more refined performance in the lower end of the tonal spectrum?

    it would be a bit extreme to use 700+ dollars and 600watts of power for a set of Lithiums... I guess ;-)

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  • prxprx
    replied
    Dat klopt als een bus. ;) Grappig, wist niet dat hier meer Nederlanders waren.
    And thanks guys, I'll start a build thread tomorrow.
    Last edited by prxprx; 11-11-2018, 10:37 PM.

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  • thekorvers
    replied
    Originally posted by prxprx View Post

    ................................................

    Sorry for my English, it's not my native language.

    Cheers,
    Jasper
    Zo Jasper, spreek jij Hollands?

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  • scottsehlin
    replied
    I agree with Chris. Your diagram looks correct.

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  • Chris Roemer
    replied
    Your drawing looks good to me.

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  • prxprx
    replied
    Big bump! I messaged Scott but figured someone else could help me too. Might be good informarion for more newbies...

    I'm currently in the process of converting an old Telefunken radio (https://www.radiomuseum.org/images/r...rt_1638957.jpg) in a modern age Bluetooth speaker using a Dayton KAB250 amp and a pair of Lithiums. :-)

    I'm a BIG novice when it comes to soldering... I'm not that technical either. So I sketched out my crossover and I was hoping someone could check if it's correct. The small black 'blocks' are single wire terminals, if that's what you call them; https://www.letsleds.nl/wp-content/u...el-500x500.jpg

    That way I have less soldering to do, and I can disconnect the amp and speaker wires easily.

    I'm hoping someone can give me the green light on this, as it's occupying the dinner table and the missus is not happy about that. :-D

    I might make a build thread if there's some interest.

    Sorry for my English, it's not my native language.

    Cheers,
    Jasper

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  • scottsehlin
    replied
    Thanks Chris. 016-15 is the way I would go.

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  • Chris Roemer
    replied
    Try 016-15.

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  • Jeff F.
    replied
    Originally posted by jmw0403 View Post
    I'm trying to put a parts order together and it looks like PE no longer has the 15-ohm resistor. 004-15. Is there an alternative that will work?
    You could use the 15 ohm mills, part 005-15. It's a bit more money though. You could also use two 7.5 ohm daytons in series or two 30 ohm daytons in parallel.

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  • jmw0403
    replied
    I'm trying to put a parts order together and it looks like PE no longer has the 15-ohm resistor. 004-15. Is there an alternative that will work?

    Leave a comment:


  • bearberry
    replied
    Re: Lithium

    Looks like a very nice compact speaker, Scott.
    Two corrections to the Bill of Materials pictured in post 1:
    Part number for Dayton Audio DMPC-8.2 8.2uF 250V Polypropylene Capacitor is 027-426
    Part number for Dayton Audio DNR-3.0 3 Ohm 10W Precision Audio Grade Resistor is 004-3

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  • scottsehlin
    replied
    Re: Lithium

    When I brought these to Iowa, I didn't have a full set of measurements and hadn't had as much listening time as I would like to have. Since then, I have done more listening - and wound up tweaking one resistor. I ran a full set of measurements tonight and think we are good to go.

    I will give the "LithMTM" it's own long overdue design thread.

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