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1st Boombox Project - The Madeleine

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  • #61
    Re: 1st Boombox Project - The Madeleine

    BLUETOOTH UPDATE:

    Yesterday, I received 2 of the 3 Sure Electronics BT modules that I ordered from China. They were slated to arrive at the end of the month, but sooner is always better. I wanted to stick with 12v modules to alleviate the need for step down circuits that would be needed for 5v modules. I was hoping to mitigate several issues with the Milennia BT modules. I also tried a Fusion BT-100 module as well. I have the BT-100 hooked up in my garage to a 13V power supply and a 22 year old Linear Power 652i car audio amp. This powers 2 in-ceiling speakers. I experienced all of the below except it had less turn off pop. Both the Milennia and Fusion BT modules are version 2.0

    1. Data EMI Feedback - There was a fair amount at zero volume but it did seem to disappear once the volume increased. It did impact the quality of sound. It still sounded descent, but after hearing a direct line-in (3.5mm to RCA) it did not do the project justice.

    2. Sound Quality - If comparing this module to a direct line-in on the amp there was a pretty big difference in sound quality. But this is BT right? The highs were cut off, the mids were muffled/muddy but the lows were pretty good. This is a result of the version of BT used. I have hours listening to the Milennia BT module and line-in direct to the amp. As time went on, I became more disappointed with the BT module and considered scrapping the BT idea and just having a 3.5mm input.

    3. Gain – There was considerably less gain with both BT modules compared to a direct line-in connection. Neither module is large enough to house any type of line driver circuit. At 100% volume from my iPhone was really not that loud. Depending on the recording it might increase some. I had decided I could live with it. But, see above #2 – going over my options again.

    4. Turn Off POP – It does not impact sound quality but it was pretty bad.

    Enter the Sure APT-X Bluetooth 4.0 Audio Receiver. At first glance is looks very well put together like other Sure products. But after installing, I call this the miracle BT module. All of the issues above are 100% eliminated.




    1. Data EMI Feedback - The description for the module states that it utilizes independent power supplies for an isolated 12v independent power supply taking care of the data EMI. I found this to be true. It is no longer present.

    2. Sound Quality - APT-X also is advertised to have different compression codec that has increased sound quality and wider frequency response. The difference if very night and day. It sounds better that a direct line-in connection. The highs are back and bright, the mids are tighter and more crisp and the lows are a little tighter as well. Again, I cannot stress enough…night and day.

    3. Gain – It is obvious that the board has some sort of line output driver. It is 2x-3x louder that the direct line-in connection. 100% Milennia BT volume = 25% Sure BT volume.

    4. Turn Off Pop – Gone, just not there anymore.

    The SURE BT module transforms this project and is a game changer. I am very happy with the unit and it was worth the wait. I will be ordering more for additional projects. PE needs to carry this module as it is 12v and at a good price point. It offers consistency if you are pairing it with a Sure amplifier. It also connects very fast. This module really lets the amp open up. It is hard to believe the small 15x2 watt amp can produce that much sound. The APT-X transforms the way the amp is used and sounded.

    INSTALLATION:

    It does not have a screw terminal connections for 12v and ground. I had those already on order from PE and received them today. I soldered one on to the BT board and the amp board as well. It allows power to be daisy chained and reduces the power connections from the source and cleans things up.

    As you can see below the updated mounting solution is a little neater. Another plus is the RCA jacks are the same distance apart and only a barrel connector is needed to connect the two parts. I was hoping this would be the case but was not sure until I received the unit. Side Note: I might be experimenting with the Sure volume control as well and it looks like the RCAs might line up






    Thanks for all of the kind words. This project is pretty my much complete. The electronics work and extensive testing (listening) will be done over the next few weeks. It was a long haul to get the BT right but with the Sure module it solved all of the outstanding issues. For the record, this is a prototype. I will be building at least one more and another to potentially sell. I learned a a lot on this build and it was my first attempt at building a stereo speaker box. I have built a few sub enclosures before but nothing like this.

    All the pics of the build can be found Here

    Plans for the build can be found here The Madeleine Plans.pdf. I included ad MDF cut sheet and a hardwood cut sheet.

    Additional info, per my scales the Madeleine weighs in at 20.6 lbs

    Paul's design is rock solid and one of the best sounding speaker sets I have ever heard. I would like to build a few variations of the OSs possibly standard speakers with matching hardwood amp. Thank you Paul. After cruising Paul's site I have taken an interest in the Swopes. I am already starting to design the enclosures and hope to start them in the next few months (after I build a few Madeleines). I have some nearly new Infinity towers, center and rear for my home theater and these little speaker blow them all away. And of course, I will construct everything out of hardwood.

    Also as soon as the black PVC arrives today I will post pics and measurements as well. I really hope it is a good substitute to PVC because getting rid of the white port would be nice.
    "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


    • #62
      Re: 1st Boombox Project - The Madeleine

      Originally posted by Gordy View Post
      Enter the Sure APT-X Bluetooth 4.0 Audio Receiver. At first glance is looks very well put together like other Sure products. But after installing, I call this the miracle BT module.
      This is great information!! Sounds like the perfect BT boom box module and a double bonus that it runs at 12v. Now if we could just get PE to stock them........ Thanks for doing the research and bringing this to everyone's attention.

      Am I correct in assuming that ebay is the current way to order these?
      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


      • #63
        Re: 1st Boombox Project - The Madeleine

        Originally posted by bkeane1259 View Post
        Am I correct in assuming that ebay is the current way to order these?

        You can order from eBay or direct from Sure in China. They just got their new storefront up and running. This is how I found the volume control I want to experiment with.

        I chose the slow boat option with eBay purchase and it took about 9 days total. I chose the express option on the Sure store site. They are going to arrive slower. They both come from the same place. From eBay it will cost you about $27 shipped. There is no better deal. These should be the default standard for BT modules. Notice that the voltage is 9-15v. Pairing it with a 14v-15v DC adapter is an option as well if you wanted to run their 25x2 watt amp. 15x2 is way more than adequate for a set of OSs.
        "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


        • #64
          Re: 1st Boombox Project - The Madeleine

          Thanks Gordy. I just stuck in a fleabay order for a pair. I'm planning to outfit my kid's bathroom with a small sound system from my menagerie of spare parts and they definitely want BT. I’ve tried the BT-1A module from PE and it sucks (sorry PE). In fact the BT module offerings from PE just are not good at all. I’m looking forward to trying the Sure APT-X. I suspect I will use the second one to add BT to my existing Cougar tailgate boom box.
          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


          • #65
            Re: 1st Boombox Project - The Madeleine

            UPS arrived right as I pressed submit on my last post. The Black PVC arrived from FORMUFIT. I measured it and it is identical in spec to Sch 40 1-1/4" pipe. It is cheaper that regular PVC? No. It is cheeper that the 1-3/8" adjustable port that PE sells? Kind of. It will run about $1.40 per foot. Will it look cool as a flushed in port on an OS style box? Yes, because it is black. I purchased 6ft of it so that should last me a while.



            "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


            • #66
              Re: 1st Boombox Project - The Madeleine

              That looks really nice.

              रेतुर्न तो थे स्रोत
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              • #67
                Re: 1st Boombox Project - The Madeleine

                Nice! Always been a fan of McMaster Carr.
                Melby Audio - Flat Pack Speaker Kits

                Comment


                • #68
                  Re: 1st Boombox Project - The Madeleine

                  Nice looking build there. Props for finding the Sure bluetooth. I just tried one of the cheapy 5v units that PE sells and it sounds horrible. I thought it would work well for one of my boomboxes, but it proved me wrong.

                  Jay

                  Comment


                  • #69
                    Re: 1st Boombox Project - The Madeleine

                    Originally posted by Jbarnes View Post
                    Nice looking build there. Props for finding the Sure bluetooth. I just tried one of the cheapy 5v units that PE sells and it sounds horrible. I thought it would work well for one of my boomboxes, but it proved me wrong.

                    Jay

                    Thanks for the props. Paul's OSs are simply exceptional and in a boombox configuration they are incrediable. I will be building the next one in solid Mahogany. I have Dewalt 735 surface planer being delivered in a few days and hope to get started on it this weekend.

                    I purchased all of the parts to do some of the cheap 5V BT units as well. I tried the Sure APT-X BT module first and stopped there. I also have 2 more in my tool box. It really is night and day from standard BT. I have not listened to any other device in my house for the last few weeks. I am that floored.

                    Speaking of, I have some Karma to spread around. I have 2 USB BT audio adapters I would be happy to send on to anyone who wants one. Free and shipping is on me. They are new in package and come with a headphone 3.5mm cable. PM me your address and I will send one to you.

                    I have also been getting my plans ready for a full set of Swopes. If the Swopes sound half as good as the OSs, I would be very happy.
                    "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


                    • #70
                      Re: 1st Boombox Project - The Madeleine

                      Originally posted by Gordy View Post
                      I have also been getting my plans ready for a full set of Swopes. If the Swopes sound half as good as the OSs, I would be very happy.
                      Haha......you better be sitting when you power up the Swopes for the first time then.
                      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


                      • #71
                        Re: 1st Boombox Project - The Madeleine

                        Originally posted by bkeane1259 View Post
                        Haha......you better be sitting when you power up the Swopes for the first time then.
                        Yeah- and wearing rubber pants.
                        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*

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

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                        • #72
                          Re: 1st Boombox Project - The Madeleine

                          Rough cutting the mahogany for surprise late father's day gift for my Dad. The wood is sitting on top of the Dewalt stand that will be the home of a DW735x that should arrive tomorrow morning. I am pretty excited to work with mahogany. At ~$4.95 a board foot, it is almost the same cost as veneer.



                          "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


                          • #73
                            Re: 1st Boombox Project - The Madeleine

                            Wowzers.....that was the quickest I ever received an ebay purchase direct from China....very much looking forward to using these.

                            Click image for larger version

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                            Originally posted by bkeane1259 View Post
                            Thanks Gordy. I just stuck in a fleabay order for a pair. I'm planning to outfit my kid's bathroom with a small sound system from my menagerie of spare parts and they definitely want BT. I’ve tried the BT-1A module from PE and it sucks (sorry PE). In fact the BT module offerings from PE just are not good at all. I’m looking forward to trying the Sure APT-X. I suspect I will use the second one to add BT to my existing Cougar tailgate boom box.
                            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


                            • #74
                              Re: 1st Boombox Project - The Madeleine

                              I was shocked as well. They arrived faster than the units I ordered from their website and I even selected express delviery. I have been logging lots of hours on the box and and electronics and no hiccups yet. Still amazed at the sound.

                              I ordered all of the XO components and speakers today from PE. Since this next box will be a late father's day gift and we are going to see him on July 4th, I have to get to work.

                              The planer arrived this morning. Assembly was quick and I adjusted the end tables and ran some scrap to see how it worked. In less than an hour of arrival, I have all of the mahogany down to 3/4" without any snipe. Now to do the finish cuts this afternoon.









                              Last edited by Gordy; 06-26-2014, 11:03 PM.
                              "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


                              • #75
                                Re: 1st Boombox Project - The Madeleine

                                I made signifiant progress today. Mahogany is pretty easy to work with and it also pretty forgiving. I decided to change things a little on this box. I moved the fuse holder internal. One less hole to drill really. Also on this project I used 1/4" dowels instead of 5/16" I sunk them just enough that I was able to use them line up pins as opposed to actual integral parts of the box. These proved to be much easier to work with.

                                I also decided to put a round over on all 4 corners. The first box had a 1/2" round over. Since I had to buy a new router to support the newly added Jasper circle cuter, the new router supports 1/2" shank bits. That enabled me to run to the Woodcraft store and grab a 5/8" round over. I think it looks a lot better with the larger round over and all four corners done.

                                I also assembled it a little differently. I cut the baffle 1/4" large in order to use the flush cut but to clean up the edges. This gave me a perfectly flush baffle with little sanding.




















                                "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

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