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SB Acoustics Widebody 2 way

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  • SB Acoustics Widebody 2 way

    Last year I picked up some SB drivers that were on sale at a Canadian retailer (I live in Canada) with the intentions of building a floor stand speaker for home as I only have small bookshelf speakers at home. The idea for the dimensions and layout came from Wolf's widebody thread and the HHH Plutone - so much for a floor stand speaker. The drivers are the SB17MFC woofer and SB26STC tweeter. Crossover work started earlier this year but had a bit of a delay as my OmniMic started giving me some funny results. I sent it back to PE and six weeks later I had a new one in my hands (thanks PE) I ended up with a x-over point of 2200 with 12 db on the woofer and 18db on the tweeter. I didn't save any of my PCD sims so I just have my OmniMic measurements with the final version of the crossover measured in my living room.





    Cabinet is 3/4" MDF with one shelf/brace in the middle. Lined with some mattress topper. I used PCV pipe for the port when I was measuring and working on the crossover but I knocked that out and put in a flared port when I finished the speaker. The box is right around 1 cf and tuned to 50hz with a 2x6" port.





    Veneer is Maple on the sides and I think Mahogany in the middle with 4 coats of Varathane semi gloss oil. Crossover parts are Solen perfect lay coils and Fast caps.





    I put the last coat of oil on last night and buttoned them up and brought them up into the living room. I'm really happy with how they turned out, nice smooth sound and pretty decent low end kick to them. The only thing I still have to do is pick a name for them still....maybe after I listen to them for a few days



    See my projects on Instagram and Facebook

  • #2
    Something "Audio Note" about them.
    Kenny

    http://www.diy-ny.com/
    DIY NY/NJ 2014 https://www.youtube.com/watch?v=FGwA...ature=youtu.be
    Man does not live by measurements alone, a little music helps.

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    • #3
      Very cool design, not the typical tweeter on top. The veneer choices are super cool, the contrast really draws you to them. Great job. XO schematic, maybe???
      Paul

      The "SB's" build page
      http://techtalk.parts-express.com/sh...-4-(pic-heavy)

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      • #4
        Very pretty, sharp finish.

        I thought those Tamarinds were going to serenade the beer guzzlers down the block

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        • #5
          How about 'Chicagos- the speakers of broad shoulders'

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          • #6
            Very nice looking and very smooth curve, I like it a lot! Did you build the BSC into the low pass filter? If so, most excellent. I'd love to see your schematic.

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            • #7
              Originally posted by Millstonemike View Post
              Very pretty, sharp finish.

              I thought those Tamarinds were going to serenade the beer guzzlers down the block
              I have someone very interested in buying them - so a different set of speakers are going to the brewery.

              I will draw up a schematic and post it up tomorrow.
              See my projects on Instagram and Facebook

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              • #8
                Very cool! You don't see that everyday.
                Later,
                Wolf
                "Wolf, you shall now be known as "King of the Zip ties." -Pete00t
                "Wolf and speakers equivalent to Picasso and 'Blue'" -dantheman
                "He is a true ambassador for this forum and speaker DIY in general." -Ed Froste
                "We're all in this together, so keep your stick on the ice!" - Red Green aka Steve Smith

                *InDIYana event website*

                Photobucket pages:
                http://photobucket.com/Wolf-Speakers_and_more

                My blog/writeups/thoughts here at PE:
                http://techtalk.parts-express.com/blog.php?u=4102

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                • #9
                  Very nicely done!
                  Projects:

                  transcenD: http://techtalk.parts-express.com/fo...5035-transcend
                  Summits: http://techtalk.parts-express.com/sh...75-The-Summits
                  References: http://techtalk.parts-express.com/sh...-My-References
                  Vintage Style 2-way: http://techtalk.parts-express.com/sh...-vintage-2-way

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                  • #10
                    Crossover schematic as per promised

                    See my projects on Instagram and Facebook

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                    • #11
                      Beautiful speakers Derek! Can I ask what made you decide to invert the woofer and tweeter? My guess was maybe these will be sitting on the mantle in place of the tamarinds and this was to keep the tweeters closer to ear level?
                      My "No-Name" CC Speaker
                      Kerry's "Silverbacks"
                      Ben's Synchaeta's for Mom
                      The Archers
                      Rick's "db" Desktop CBT Arrays
                      The Gandalf's

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                      • #12
                        Originally posted by Kevin K. View Post
                        Beautiful speakers Derek! Can I ask what made you decide to invert the woofer and tweeter? My guess was maybe these will be sitting on the mantle in place of the tamarinds and this was to keep the tweeters closer to ear level?
                        Thanks guys! Originally I was going to build a floor stand with these drivers but then decided to go this route. With the tweeter inverted it sits at ear level when they are sitting on the stools and when I am sitting on the couch. I also got the idea from the HHH Plutones.

                        See my projects on Instagram and Facebook

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                        • #13
                          What happens if you flip them upside down?

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                          • #14
                            Why the change to stand mounted? They could have easily been made into towers, just not utilizing all the available air space. Otherwise, excellent job!!
                            A mains
                            The Ventures
                            Open Invit8tions
                            RSR
                            Sound Troopers
                            Acorns
                            442
                            DGBG's
                            The Monuments

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                            • #15
                              Originally posted by 6thplanet View Post
                              Why the change to stand mounted? They could have easily been made into towers, just not utilizing all the available air space. Otherwise, excellent job!!

                              Thanks! I just wanted to try something different this time around.
                              See my projects on Instagram and Facebook

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