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  1. #1
    RIP 2011 Zilch's Avatar
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    2452H-SL in a 2-way

    Quote Originally Posted by 4313B View Post
    The driver is readily available and its performance is very good for its price point. The waveguides are readily available as well. This simple fact makes both products appealing to the DIY crowd and DIY folks should be able to come up with really nice 2-way systems using these products.
    Two way? That would be me.

    Quote Originally Posted by 4313B View Post
    What kind of technical support? Do you want me to bolt one on to a consumer horn or waveguide, take some measurements and plug those measurements into LEAP?
    Yes.

    2452H-SL on PT-F95HF (JBL part# 338650-001,) the combination used in VP7212MDP, i.e., "Used as intended."

    Quote Originally Posted by 4313B View Post
    Someone must have bought all these 2452H-SL's off eBay... where'd they all go? Where are all the 2-ways using this c.d.?
    Two projects are built, and two more are under construction, LE14H-3 being the preferred woofer, with 2235H as alternate, both @ 1kHz. We're presently using my half-ass adaption of N3134 crossovers as I don't have LEAP yet.

    We'd like a compensation filter that could be used with 24 dB/octive L/R active as well as a full passive crossover incorporating it, such that a switchable version might be constructed.

    I know how to do the building them part....

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    Quote Originally Posted by Chas View Post
    I can't get my head around using a 15" woofer up to around 1Khz
    I use twelves myself these days but plenty of people still like the fourteen or fifteen.

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    Administrator Robh3606's Avatar
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    Two projects are built, and two more are under construction, LE14H-3 being the preferred woofer, with 2235H as alternate, both @ 1kHz. We're presently using my half-ass adaption of N3134 crossovers as I don't have LEAP yet.
    Post a couple of measurements on the waveguide. I can throw it into LEAP if your curious what it comes up with.

    Rob

  4. #4
    Maron Horonzakz
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    Is that a Haywood Wakefield cabinet between the speakers???

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    Quote Originally Posted by Maron Horonzakz View Post
    Is that a Haywood Wakefield cabinet between the speakers???
    Equipment stand....

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    RIP 2011 Zilch's Avatar
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    Quote Originally Posted by Robh3606 View Post
    Post a couple of measurements on the waveguide. I can throw it into LEAP if your curious what it comes up with.
    Thanks, Rob. This good enough for LEAPing?
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    Administrator Robh3606's Avatar
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    Hello Zilch

    Sure they should work just fine. Do you have an impedance and phase measurement with the waveguide on?? If you do post that as well. What's the difference between the files??

    Rob

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    Quote Originally Posted by Robh3606 View Post
    Hello Zilch

    Sure they should work just fine. Do you have an impedance and phase measurement with the waveguide on?? If you do post that as well. What's the difference between the files??
    Separate file for each of the drivers, providing SPL and phase.

    I'll generate the impedance curves to go with in Sinusoidal....

    Quote Originally Posted by boputnam View Post
    OK, now I'm confused.

    Zilch - you've been listening to that confab, this way...?

    Dood...
    No, Bo, that's the raw driver response on the waveguides, four units.

    Rob's going to plug those values into LEAP along with the additional information he's asked me to generate, and LEAP will prescribe a passive filter, or several, for me to try.

    I've been running them on a modified version of the 4430 crossover....

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    Senior Seņor boputnam's Avatar
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    Quote Originally Posted by Zilch View Post
    Thanks, Rob. This good enough for LEAPing?
    OK, now I'm confused.

    Zilch - you've been listening to that confab, this way...?

    Dood...
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    Senior Seņor boputnam's Avatar
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    Quote Originally Posted by Zilch View Post
    No, Bo, that's the raw driver response on the waveguides, four units.

    ...

    I've been running them on a modified version of the 4430 crossover....
    Ah. The sequence of your posts confused me. I thought you were showing the N3134 response. I'd like to see that.

    I have a (possibly) vested interest in this - I am considering the VP7212MDP.

  11. #11
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    Quote Originally Posted by 4313B View Post
    I use twelves myself these days but plenty of people still like the fourteen or fifteen.

    Dammit! Another variable to think about

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