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Thread: Le14 Mtm

  1. #1
    RIP 2011 Zilch's Avatar
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    Le14 Mtm

    Donald was lookin' for something to do with LE14. It's probably the most "available" driver on eBay, and very reasonably priced, typically $75 each.

    Refoaming resurrects them. Reconing to LE14H-1 supposedly makes them even better.

    Has anyone played the DMS-1 game with them?

    http://www.lansingheritage.org/html/.../1995-dms1.htm

    Izzat a single chamber box?

    Anybody know the tuning?

    Is there already a thread on this I can't find?

    http://audioheritage.org/vbulletin/s...ighlight=DMS-1

    We KNOW how to punch up the VHF extension passively to keep it a 2-way.

    Will the new PW horn tomp787 has go high enough?

    How come CAPITALS in my titles revert to l/c?

  2. #2
    Senior Member Don C's Avatar
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    I was thinking about it for a while, but I have not actually done anything, and I probably never will. Here's the thread:
    http://www.audioheritage.org/vbullet...ead.php?t=3212

  3. #3
    RIP 2011 Zilch's Avatar
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    Thanks, Don. I thought I remembered some ruminations about such a project.

    We DO have listening response from one member in Italy, post #7 here:

    http://audioheritage.org/vbulletin/s...ighlight=DMS-1

    [Still searching....]

  4. #4
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    Lower Case

    Hi Zilch

    How come CAPITALS in my titles revert to l/c?
    Actually, I think that there is no "resorting" to lower case going on .

    I've found that if I want to modify the tiltle of a particular post - I must register a reason for the change or else the "change/edit" won't take place. This is in contrast to the ability to modify the text body of the post. ( ie . these changes will be registered without a "reason for editing" being entered . )

    regards <. Earl K

  5. #5
    RIP 2011 Zilch's Avatar
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    Studying this a little:

    D'Appolito 3/2 geometry wants twice crossover wavelength spacing between woofers with the mid/high midway between. Wavelength at 1000 Hz is 13.5 inches, easily leaving room for a 12" x 12" horn between them.

    So, how come JBL so obviously scrunched the inter-woofer distance down to the minimum the 2332 horn would allow in the DMS-1? The rules different for CD horns?

    I note also that Robert (sebackman) found 2451/2332 sufficiently lacking in VHF to warrant a supplemental tweeter here. 2451 is allegedly the same as the 2450SL-A used in DMS-1 here.

    Looking forward to the results of various members' tests of the newer horn/driver combinations, obviously....

  6. #6
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    MTM vs D'Appolito

    Hi Zilch

    So, how come JBL so obviously scrunched the inter-woofer distance down to the minimum the 2332 horn would allow in the DMS-1? The rules different for CD horns?
    FWIW; I make a distinction between MTM and D'Appolito setups . MTM ( to me ) is a much broader generalized descriptor versus "D'Appolito" which (for me ) invokes a strict adherence to its "rules" ( including inter-driver phase relationships ) . From my perspective, JBL just follows the much broader MTM definition.

    regards <> Earl K

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