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1st Boombox Project - The Madeleine

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  • #31
    Re: 1st Boombox Project - The Madeleine

    Looks really great, I need to twist my wires like that, because with 5 drivers in each tower, it gets a little messy haha.

    रेतुर्न तो थे स्रोत
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    in war, victory . . . in peace, vigilance . . . in death, sacrifice.

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    • #32
      Re: 1st Boombox Project - The Madeleine

      I'm guessing EMI almost never comes into play with speaker wire, but I suppose it can't hurt especially if you live near a HAM radio operator...LOL. But seriously, I twist them too (not that tight though) and then I twist the tweeter and woofer leads and run them to the crossover. This makes it very easy to zip-tie or otherwise secure the driver leads so that they don't ever make noise in the box. Especially for MLTLs, where your driver-to-crossover distance could be 36"....why fuss with multiple leads when you can have one nice twisted lead that you can secure to window braces on the way to the crossover and/or terminal cup? ….and it looks dead sexy when you take pics.
      Bryan K.

      Midwest Audio Club

      Speedster | Sub Attachť | The Wildeman | Sean's NLA Towers | CO‹GAR, COUGAR II and CO‹GAR JR | Triton | Lithium | J-Boom | Trym MLTL | Docere MLTL

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      • #33
        Re: 1st Boombox Project - The Madeleine

        Thanks for the kind words. I have about 10 hours on it now and will be doing a follow up impressions and the what's and why's write up in a few days or when time allows.


        Originally posted by Paul Carmody View Post
        This is one of those times when I'm reminded that suck at woodworking.


        Magnificent job. Great build log, as well. This is a project I've wanted to see someone build for a long, long time.
        Originally posted by Uncle Bob View Post
        Great looking build. OK, I have seen this a few times.....twisting of the speaker wire. Is there anything to this or just a builders preference to keep them together?

        Thanks! This is a throwback to my 12v years. We would put wires like this in a drill and a vice and twist them up just to keep them together. There is no other reason than that. If it helps with EMI then bonus!


        Here are some pics that I took this morning. They show off the box a little better.











        "A dirty shop is an unsafe shop, if you injure yourself in a clean shop you are just stupid" - Coach Kupchinsky

        The Madeleine
        The Roxster
        Swopes 5.0
        Acoustic Panels
        Living Room Make Over

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        • #34
          Re: 1st Boombox Project - The Madeleine

          Looks great! Very clean project.

          So the volume control is via bluetooth device only? And what bluetooth module did you use? Most of the ones I've seen are 5v - did you use a small regulator to step it down from 12v?

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          • #35
            Re: 1st Boombox Project - The Madeleine

            Originally posted by jared View Post
            Looks great! Very clean project.

            So the volume control is via bluetooth device only? And what bluetooth module did you use? Most of the ones I've seen are 5v - did you use a small regulator to step it down from 12v?
            Yes the volume is controlled by the bluetooth device (phone, tablet etc). The BT module used was a Millennia MIL-BTREC and it is 12v. There are not that many of these on the market in 12v. I was only able to find 2 are their availability is sketchy at best.

            I purposely chose the amp and the BT module because they are 12v. No step-down regulators to deal with and it minimizes parts. There is some feedback at zero volume that sounds like data transfer but once the volume is turned up is go away and is drowned out by the audio.
            "A dirty shop is an unsafe shop, if you injure yourself in a clean shop you are just stupid" - Coach Kupchinsky

            The Madeleine
            The Roxster
            Swopes 5.0
            Acoustic Panels
            Living Room Make Over

            Comment


            • #36
              Re: 1st Boombox Project - The Madeleine

              Gorgeous work!
              Brian Steele
              www.diysubwoofers.org

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              • #37
                Re: 1st Boombox Project - The Madeleine

                Great build thread, lots of pics! Clearly you built the furniture in the background of one of your pictures!

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                • #38
                  Re: 1st Boombox Project - The Madeleine

                  Wow, super nice craftsmanship! You could probably get rid of the noise with a little work, not sure how bad it is. I have had good luck using DC-DC isolated converters to run the BT. It would be a shame for it not to sound as perfect as it looks.
                  Melby Audio - Flat Pack Speaker Kits

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                  • #39
                    Re: 1st Boombox Project - The Madeleine

                    Originally posted by Melby Audio View Post
                    Wow, super nice craftsmanship! You could probably get rid of the noise with a little work, not sure how bad it is. I have had good luck using DC-DC isolated converters to run the BT. It would be a shame for it not to sound as perfect as it looks.
                    Tell me more about the DC-DC isolated converters
                    "A dirty shop is an unsafe shop, if you injure yourself in a clean shop you are just stupid" - Coach Kupchinsky

                    The Madeleine
                    The Roxster
                    Swopes 5.0
                    Acoustic Panels
                    Living Room Make Over

                    Comment


                    • #40
                      Re: 1st Boombox Project - The Madeleine

                      Originally posted by Gordy View Post
                      Tell me more about the DC-DC isolated converters
                      Yes, please. And Gordy...this is incredible.....I'm sure Paul Carmody is grinning from ear to ear. If you're ever close to a DIY event, this must be seen.
                      Bryan K.

                      Midwest Audio Club

                      Speedster | Sub Attachť | The Wildeman | Sean's NLA Towers | CO‹GAR, COUGAR II and CO‹GAR JR | Triton | Lithium | J-Boom | Trym MLTL | Docere MLTL

                      Comment


                      • #41
                        Re: 1st Boombox Project - The Madeleine

                        Originally posted by Melby Audio View Post
                        Wow, super nice craftsmanship! You could probably get rid of the noise with a little work, not sure how bad it is. I have had good luck using DC-DC isolated converters to run the BT. It would be a shame for it not to sound as perfect as it looks.

                        I was researching isolated DC-DC converters and found this. Is this what you are referring to.

                        http://www.mouser.com/ProductDetail/...kELw%252bCU%3d
                        "A dirty shop is an unsafe shop, if you injure yourself in a clean shop you are just stupid" - Coach Kupchinsky

                        The Madeleine
                        The Roxster
                        Swopes 5.0
                        Acoustic Panels
                        Living Room Make Over

                        Comment


                        • #42
                          Re: 1st Boombox Project - The Madeleine

                          Yes, that is actually the exact series that I typically use.
                          Melby Audio - Flat Pack Speaker Kits

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                          • #43
                            Re: 1st Boombox Project - The Madeleine

                            Double Post.
                            Melby Audio - Flat Pack Speaker Kits

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                            • #44
                              Re: 1st Boombox Project - The Madeleine

                              Originally posted by Melby Audio View Post
                              Yes, that is actually the exact series that I typically use.

                              My knowledge of how to apply the isolated converter is very limited. I was looking at the 1212SC. Is it as easy as wiring this device inline - in from the power supply and out the BT module using all 4 pins? Any help is greatly appreciated. My Dad has been making it very clear that he wants one of these. So it looks like I will probably be making another.
                              "A dirty shop is an unsafe shop, if you injure yourself in a clean shop you are just stupid" - Coach Kupchinsky

                              The Madeleine
                              The Roxster
                              Swopes 5.0
                              Acoustic Panels
                              Living Room Make Over

                              Comment


                              • #45
                                Re: 1st Boombox Project - The Madeleine

                                Basically there's an input/ground and output/ground...

                                page 6 of the pdf http://www.mouser.com/ds/2/281/kdc_nke-10123.pdf

                                रेतुर्न तो थे स्रोत
                                return to the source
                                leviathan system thread
                                deadhorse thread
                                shockwave build thread

                                instagram :: greywarden_13

                                in war, victory . . . in peace, vigilance . . . in death, sacrifice.

                                Comment

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