Announcement

Collapse
No announcement yet.

A 2.1 desktop system based on BOBinGA's PEDS 2.1

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • A 2.1 desktop system based on BOBinGA's PEDS 2.1

    Cut the MDF for the boxes. The satellites are pretty much as BOBinGA designed. The sub is the same 6 1/2" TB in a ported box. BOBinGA designed his sealed sub to work with the Dayton MCA 2.1 plate amp's 6db boost. I'm using a 2.1 chip amp. I have a slightly larger ported box, definitely skewed towards small size vs ultimate performance.

    The satellites and possibly the sub will be pink. Hello Kitty theme.

    Click image for larger version

Name:	IMG_0001.JPG
Views:	665
Size:	438.5 KB
ID:	1450203


  • #2
    Looking forward to your build.

    I’ve built his 2.1 set and then many other 2.1 systems.

    my favorite

    Comment


    • #3
      Amp arrived. 19V brick looks a bit anemic. We will evaluate when able.

      Click image for larger version  Name:	IMG_0002.JPG Views:	0 Size:	782.8 KB ID:	1450258 Click image for larger version  Name:	IMG_0003.JPG Views:	0 Size:	749.6 KB ID:	1450259 Click image for larger version  Name:	IMG_0004.JPG Views:	0 Size:	901.7 KB ID:	1450260

      Comment


      • #4
        Click image for larger version  Name:	IMG_0006.JPG Views:	0 Size:	475.1 KB ID:	1450263 All 1/2" MDF, sub has double thick baffle. I have to ship this across the country, thus I will probably use t nuts on the driver fasteners. I can imagine a USPS drop test ripping the 6 LB Tang Band loose with just wood screws.

        Click image for larger version  Name:	IMG_0005.JPG Views:	0 Size:	467.2 KB ID:	1450262

        Click image for larger version

Name:	IMG_0007.JPG
Views:	582
Size:	849.5 KB
ID:	1450265
        Last edited by djg; 09-03-2020, 07:25 PM.

        Comment


        • #5
          Pink sub it is.

          Click image for larger version

Name:	120 Operation Petticoat (1959).jpg
Views:	593
Size:	59.6 KB
ID:	1450267

          Comment


          • #6
            The amp looks like it will work well.
            -Bob

            The PEDS 2.1 mini system
            My A7 Project - another small desktop speaker
            The B3 Hybrid Dipole - thread incomplete and outdated

            Comment


            • Jake
              Jake commented
              Editing a comment
              Hey Bob, I'm interested in building just the satellites, but ported. Could I build a slightly larger box, say .08cf and tuned you 75-80hz? Omitting the 200uf and .33uf caps from the crossover. I'm really looking for a "quark like" speaker.

          • #7
            I have one like it without bluetooth. It's very adjustable, but, like many little 2.1 chipamps, it runs the satellites full range. So, I really like your filter on your crossover design.

            Comment


            • #8
              I think the "stuff" will be here today, I can see if this sub works.

              Stuff arrived.

              Click image for larger version  Name:	IMG_0008.JPG Views:	0 Size:	457.6 KB ID:	1450295
              Last edited by djg; 09-04-2020, 04:01 PM.

              Comment


              • #9
                Looking really good. I may have to look into one of these PEDs setups.

                Comment


                • djg
                  djg commented
                  Editing a comment
                  Thank you. I think the satellite design will really work with the 2.1 chip amps out these days. The big cap limiting low freq. response should protect the system from overzealous volume application.
                  Last edited by djg; 09-04-2020, 02:55 PM.

              • #10
                Click image for larger version

Name:	IMG_0009.JPG
Views:	541
Size:	850.6 KB
ID:	1450378 Click image for larger version

Name:	IMG_0010.JPG
Views:	533
Size:	862.5 KB
ID:	1450379 Click image for larger version

Name:	IMG_0011.JPG
Views:	527
Size:	761.2 KB
ID:	1450380 Click image for larger version

Name:	IMG_0012.JPG
Views:	529
Size:	451.0 KB
ID:	1450381 Click image for larger version

Name:	IMG_0013.JPG
Views:	527
Size:	944.1 KB
ID:	1450382

                Comment


                • #11
                  I got this stuff today from Amazon. Epoxy repair paste. Cheap, good reviews. To fill cracks. I hate the smell and short work life of polyester body putty. We'll see how it works.

                  Click image for larger version

Name:	IMG_0014.JPG
Views:	529
Size:	440.3 KB
ID:	1450414

                  Comment


                  • #12
                    looking good!

                    what's the port diameter and length?

                    tough part with that subwoofer driver is avoiding port noise

                    Comment


                    • djg
                      djg commented
                      Editing a comment
                      2" PVC. About 15". It's hard to measure around 2 elbows. I did test it with my similar 2.1 amp with some Pandora. It makes bass.

                  • #13
                    I had this "Monster XP compact precision stranded high resolution speaker cable with magnetic flux tube and LPE dielectric", patented. I DID NOT BUY THIS. I made speaker cables with PE budget crimp on banana plugs. I soldered them. Good quality plugs, the cable insulation took some heat with no distress. They are kind of pink, to match the color scheme.

                    Click image for larger version  Name:	IMG_0015.JPG Views:	0 Size:	452.9 KB ID:	1450421

                    The jacks on the amp are very close, banana plugs are the best connection choice IMHO.

                    Click image for larger version

Name:	IMG_0016.JPG
Views:	521
Size:	434.7 KB
ID:	1450422

                    Comment


                    • #14
                      Click image for larger version  Name:	IMG_0017.JPG Views:	0 Size:	479.5 KB ID:	1450453

                      Sanding tool to enlarge tweeter hole.

                      Click image for larger version  Name:	IMG_0018.JPG Views:	0 Size:	482.5 KB ID:	1450455

                      Click image for larger version

Name:	IMG_0019.JPG
Views:	520
Size:	420.1 KB
ID:	1450457

                      Comment


                      • #15
                        I'm interested in how the wood epoxy works out. Nice work as usual djg! You have been on a roll with the builds as of recently.
                        My Builds - Vigor (Nola Brio Knockoff) - Overnight Sensations w/ Voxel - Speedsters in surplus boxes - Zaph B3N's in bamboo - Classix II in BR-1 cabinets - Dual TPA3116 D2 amp in an old music box - Mariposas

                        Comment


                        • djg
                          djg commented
                          Editing a comment
                          It's easy when you don't work.

                          I'll be trying that epoxy tomorrow.
                      Working...
                      X