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Tenshi Zaph Audio woofer and SB Acoustics tweeter

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  • Tenshi Zaph Audio woofer and SB Acoustics tweeter

    Tenshi is Japanese for angel and as these are for my niece, aptly named. I build speakers for each of my nieces and nephews for graduation presents. They pick the color scheme and I do the rest. This time she chose an aqua color and glitter lol

    This time, I chose the Zaph Audio ZA14W08 woofer and SB Acoustics Sb26stnc tweeter. Both were already in my inventory of components. I chose an enclosure size that is large enough for bass extension to at least 60hz but still small enough for a desk or bookshelf. To that end I also chose to keep bsc to about 4db vs a more typical 6db.

    The enclosures are constructed of 1/2" Baltic birch ply with a side to side brace. The measure in at 11"H 7.5"W 9"D for a volume of 0.3 cf, 8.5L and with a 1.5" ID port x 3.25" L for an Fb of 60hz. DATS measurements confirmed the tuning to be dead on. F3 is about 55hz iirc

    The crossover is straightforward and very simple. 5 components and a crossover point of about 1.9khz. For more bsc, a 3mh inductor and 7ohm resistor could be used. Note there is a mistake and on the schematic as the tweeter should be normal polarity.

    On to the pics!

    https://www.facebook.com/Mosaic-Audi...7373763888294/

  • #2
    Originally posted by isaeagle4031 View Post
    Tenshi is Japanese for angel and as these are for my niece, aptly named. I build speakers for each of my nieces and nephews for graduation presents. They pick the color scheme and I do the rest. This time she chose an aqua color and glitter lol

    This time, I chose the Zaph Audio ZA14W08 woofer and SB Acoustics Sb26stnc tweeter. Both were already in my inventory of components. I chose an enclosure size that is large enough for bass extension to at least 60hz but still small enough for a desk or bookshelf. To that end I also chose to keep bsc to about 4db vs a more typical 6db.

    The enclosures are constructed of 1/2" Baltic birch ply with a side to side brace. The measure in at 11"H 7.5"W 9"D for a volume of 0.3 cf, 8.5L and with a 1.5" ID port x 3.25" L for an Fb of 60hz. DATS measurements confirmed the tuning to be dead on. F3 is about 55hz iirc

    The crossover is straightforward and very simple. 5 components and a crossover point of about 1.9khz. For more bsc, a 3mh inductor and 7ohm resistor could be used. Note there is a matistake and on the schematic as the tweeter should be normal polarity.

    On to the pics!
    That’s very cool tradition. I love the color. This will be the envy of her friends. I bet they sound fantastic.

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    • #3
      sweet....what sort of prep do you need to do to get a finish like that with ply?

      Comment


      • #4
        Originally posted by 3rutu5 View Post
        sweet....what sort of prep do you need to do to get a finish like that with ply?
        I sand to 220grit using a block wider than the panels. Then multiple coats of primer, sanding between coats. Then spray applying 2 light coats at a time. After each double coat, allow cure time for a few hours.

        The finish here is far from perfect. However I am also applying layers of glitter spray with seal coats in between. Once cured, I will wet sand to 1000grit and apply 2 more coats of seal.
        https://www.facebook.com/Mosaic-Audi...7373763888294/

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        • #5
          Labor of love, for sure.

          The smile on her face will be worth it . . .

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          • #6
            Do you use high fill auto primer or something else?

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            • #7
              That's really nice for rattlecan paint. Gold glitter?

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              • #8
                Very cool! Bet they will sound great! Where do you get the spade connectors for the crossover boards?

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                • #9
                  Yes, high build automotive primer.

                  Glitter is in layers. gold, silver, and black.

                  The terminals are from Meniscus.
                  https://www.facebook.com/Mosaic-Audi...7373763888294/

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                  • #10
                    Thank you!

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                    • #11
                      Nicely done, those will look very cool when they are done. That Zaph woofer gets a lot of praise for its low distortion and you have used the SB tweets quite a few times, so I'm sure this will sound VERY nice.

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                      • #12
                        Thanks for that Scott. I actually wasn't sure i would like the Zaph woofer. The other titim I have heard it, I didn't care for it as much. Might have been a product of the crossover, placement, etc. but I decidedly to give it a try and am really liking what it is capable of here
                        https://www.facebook.com/Mosaic-Audi...7373763888294/

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                        • #13
                          Few more pics. 2 coats of glitter and 4 coats of clear pearl finish.
                          https://www.facebook.com/Mosaic-Audi...7373763888294/

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