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  • Halus 2way mltl tower

    Latest project. A mltl 2way system using buyout Audible Physics 635-CP2 6.5" woofers and MCM 53-5615 1" al dome tweeters, Paul K was kind enough to model the enclosure and his sim vs the measurement is spot on. Thank you Paul! The enclosures are 37.5h 8w 10.5d. The top half is filled with batting. The 3"diam x 4" long port gives an fb of 42hz and f3 of 40. Nothing really fancy on construction, just 3/4" mdf and 3 braces. One behind the woofer, one at 18" and one a bit above the port. The Xover is a simple 2/3 order electrical on the woofer and tweeter respectively. While the reverse null is not particularly deep, the phase tracking is very good from about 300 to 8k. 8 parts total. I have a few other tweets I may drop in just to try. Nothing wrong with this mcm tweeter mind you. It is actually pretty darn good. Still need to build some feet and decide on the finish. It is too bad the woofers are NLA. They are well built with some great features. Hopefully, AP will be able to offer them again. The name, Halus, is Indonesian (home of AP) for smooth and that is one of the best way to describe them.
    https://www.facebook.com/Mosaic-Audi...7373763888294/

  • #2
    Very nice to see a new MLTL build, even though the woofers are NLA. I have a couple of questions if you don't mind. What is causing the 50'ish Hz peak, and would you post the driver phase tracking? I can't wait to see how you finish them!
    If life were fair, Elvis would still be alive today and all the impersonators would be dead.
    ~ Johnny Carson

    Bungelow Ed's Photo Album http://techtalk.parts-express.com/album.php?u=8594

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    • #3
      The peak is room influenced. I should have graphs from the drivers as well. Will check later
      https://www.facebook.com/Mosaic-Audi...7373763888294/

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      • #4
        Yeah, nice to see some new TL action.

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        • #5
          Very nice. I was over-extended during that closeout sale, so didn't jump on it as I should have.
          Glad you like the APs.

          I think I hear a difference - wow, it's amazing!" Ethan Winer: audio myths
          "As God is my witness I'll never be without a good pair of speakers!" Scarlett O'Hara

          High value, high quality RS150/TB28-537SH bookshelf - TARGAS NLA!
          SB13/Vifa BC25SC06 MTM DCR Galeons-SB13-MTM
          My Voxel min sub Yet-another-Voxel-build

          Tangband W6-sub

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          • #6
            To say that I am a huge fan of AP is an understatement. I also have their Ram series components (Ram 1, 2, 3, and 6). They are more geared towards car audio. I've become good friends with the owner. Great guy with some great gear!
            https://www.facebook.com/Mosaic-Audi...7373763888294/

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            • #7
              Hi, I purchased a pair of the closeout drivers also and I am interested in your build design. Can you please post your final crossover design for others to replicate?
              Thank you, Tim

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              • #8
                Originally posted by iglow01gt View Post
                Hi, I purchased a pair of the closeout drivers also and I am interested in your build design. Can you please post your final crossover design for others to replicate?
                Thank you, Tim
                Sure Tim. I will do that tomorrow.
                https://www.facebook.com/Mosaic-Audi...7373763888294/

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                • #9
                  Here is the crossover Tim. You may, at your discretion, adjust R2 to your liking. A larger value will give a little more top end, a little smaller will just bring it down a bit. I tried from 7.5 to 15 and settled on 10 for my room.
                  https://www.facebook.com/Mosaic-Audi...7373763888294/

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                  • #10
                    Hi, Did you ever capture the phase tracking? I would like to see it as an example of good phase tracking, and what I should be shooting for with my cross-over exercises. Thanks, Ed
                    If life were fair, Elvis would still be alive today and all the impersonators would be dead.
                    ~ Johnny Carson

                    Bungelow Ed's Photo Album http://techtalk.parts-express.com/album.php?u=8594

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                    • #11
                      I will try to get that tonight or tomorrow Ed. Had knee surgery so i havent been in my shop.
                      https://www.facebook.com/Mosaic-Audi...7373763888294/

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                      • #12
                        What type of knee surgery? Hope recovery goes well.

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                        • #13
                          Arthroscopic. Repaired some damage and removed some tissue that was being pinched. I have to take a lot of stairs in my job, carrying tools that can easily weigh an additional 50-60lbs. I work in a steel mill and some of the work is 150ft from ground level. There are times I hit my 10,000 steps before 9am lol
                          https://www.facebook.com/Mosaic-Audi...7373763888294/

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                          • #14
                            Originally posted by isaeagle4031 View Post
                            Arthroscopic. Repaired some damage and removed some tissue that was being pinched. I have to take a lot of stairs in my job, carrying tools that can easily weigh an additional 50-60lbs. I work in a steel mill and some of the work is 150ft from ground level. There are times I hit my 10,000 steps before 9am lol
                            Ditto, I hope you bounce back quickly sir! Listen to the doctors man!

                            TomZ
                            *Veneering curves, seams, using heat-lock iron on method *Trimming veneer & tips *Curved Sides glue-up video
                            *Part 2 *Gluing multiple curved laminations of HDF *Cello's Speaker Project Page

                            *Building the "Micro-B 2.1 Plate Amplifier -- Part 1 * Part 2 * Part 3 * Part 4 * * Part 5 'Review' * -- Assembly Instructions PDF

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                            • #15
                              Thanks Tom. Seems I had a meniscus tear as well. I'm back at work and my employer is working with me (as well as my coworkers) to limit my time on the stairs. It's getting better but will take some time
                              https://www.facebook.com/Mosaic-Audi...7373763888294/

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