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"Mr. East" nearing completion....

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  • Wolf
    replied
    Re: "Mr. East" nearing completion....

    I have to test the filters yet, Paul, so I'm not certain.

    As to the amount of output, it's probably an 87dB nominal, but the measurement was taken at a higher level. These are 85dB on their own without added fixins.

    Thanks for the support, guys! I will be reporting my findings.
    Later,
    Wolf

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  • jonpike
    replied
    Re: "Mr. East" nearing completion....

    Tiny TL's... I like it! A pair of those in a bigger box, and you're on the path to a B**e Wave Radio...

    Leave a comment:


  • Paul K.
    replied
    Re: "Mr. East" nearing completion....

    I presume your changes got rid of the honk? I looking forward to hearing them, too.
    Paul

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  • jmc
    replied
    Re: "Mr. East" nearing completion....

    Heh, looks like you squeezed every ounce of output from that driver.

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  • lunchmoney
    replied
    Re: "Mr. East" nearing completion....

    "Whuh?!"...

    That is so cool wolf. Love it. You're a madman.

    Can't wait to hear your listening impressions.

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  • Wolf
    started a topic "Mr. East" nearing completion....

    "Mr. East" nearing completion....

    This was a project for fun, pure and simple, and to see what could come from a decent 2" driver. I chose the TB W2-803SM, and thought for a bit...

    -Wanted more output potential; I had a few extra 60/40 Selenium biradial horn-flares, 3 to be exact.
    -I had this weird plasti-composite 3/8" material from Menards; E*** board (you find the letters to fill in).
    -I wanted *reasonable* bass extension, W2 has 1mm Xmax too.

    I contacted Paul K. for a model with measured data, and it looked good enough to pursue on the bass end. We combined our efforts to produce this:



    Sim uses 1 oz of poly-fill, and I weighed poly-batting to fit the mass-spec and wrap around the interior wall.

    Template assembly:



    Assembled minus side:



    I used the first flare to experiment with fitting of the W2, and then cut the 2nd and 3rd to match the result. Depth varies on build, and flange thickness, so try your own. I 2" Forstnered a hole through the throat to allow full-position of driver in the end. Sprayed flares with Krylon Fusion Hammered Silver. Truck bed liner on the rear of the flare, and there will be gaskets to isolate, and polyfill to further damp the back of the flare volume when this is done.

    1st mockup was measured by Brian at his place to try for a network. Ohhh boy, **!!HONK!!** :eek: Network simmed to reduce honk and level high-end rolloff. 5 cheap parts resultant. Not much acoustic gain from the flare in the end, but it was fun!!



    Here is how she sits currently:



    I have to finish assembly on the second unit, and test the simulated network to verify it works well enough. Plastic cabinets will be painted with Krylon Fusion Satin Burgundy, as the plastic-bond works very well.

    The name results from seeing the Tannoy Westminster, and the TB manufactured in the East; ipso-facto: "Mr. East". :rolleyes: These are a ton smaller, and different than any other DIY project I've encountered or built, and bizarre enough I had to try it!! :D

    I know I'm different, so don't tell me....
    Thanks for saying, "Whuh!?!?"
    Wolf
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