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  • New Project

    Thought I might share my new project. RS225S-8 X2 in a ML-TL cabinet. I have to thank Paul Kittinger for drawing up the plans. Thanks Paul. The wood is cut and ready to glue. Not quite sure what I'm going to do with the out side finish, though. Guitar Tom

  • #2
    Re: New Project

    Originally posted by GuitarTom View Post
    Thought I might share my new project. RS225S-8 X2 in a ML-TL cabinet. I have to thank Paul Kittinger for drawing up the plans. Thanks Paul. The wood is cut and ready to glue. Not quite sure what I'm going to do with the out side finish, though. Guitar Tom
    PICS PICS PICS PICS PICS

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    NK
    I'm just that guy. www.sru.edu Rock Solid.

    "It has been remarked that if one selects his own components, builds his own enclosure, and is convinced he has made a wise choice of design, then his own loudspeaker sounds better to him than does anyone else's loudspeaker. In this case, the frequency response of the loudspeaker seems to play only a minor part in forming a person's opinion."

    L.L. Beranek, Acoustics (McGraw-Hill, New York, 1954), p.208.

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    • #3
      Re: New Project

      Made more saw dust yesterday. Got the driver holes routed out on the baffles. They are 1.25" thick. Hope to get started gluing the boxes together today. The weather has been great in Southern California for working outside. The "Bench Cookies I got from Rockler for around $11.00. They work great for holding your project in place. Even with saw dust on them.
      Attached Files

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      • #4
        Re: New Project

        Spent the day in the garage making more saw dust.
        The first pic is drawing the angle to be cut. The second is setting the guide. In the third I used 3/4" brads to hold the guide in place. I don't have to worry about the holes they made in the baffle because they will be covered with veneer. The forth is making the cut. Since the blade wasn't long enough to cut through the thickest part I had to use a hand saw to finish the cut. The hand saw was my wife's dads, nice rosewood handle very comfortable and does it hold an edge.
        Attached Files

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        • #5
          Re: New Project

          If it's an MLTL, why is the front baffle so short?
          "...this is not a subwoofer" - Jeff Bagby ;)

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          • #6
            Re: New Project

            Because the line is folded twice to create 3 segments, together making the line ~74" long, and the two RS225s are located in the first (front) segment with two more segments following (each segment runs vertically). Each segment is 24" long and with the thicknesses of the two dividers added in, makes the total length 73.5 inches. The CSA of the line is 12"W x 7.5"D along the whole line's length. The mass-loading port is located on the rear near the end of the line.
            Paul

            Originally posted by critofur View Post
            If it's an MLTL, why is the front baffle so short?
            Last edited by Paul K.; 11-21-2009, 03:49 PM.

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            • #7
              Re: New Project

              Thanks Paul

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              • #8
                Re: New Project

                Originally posted by GuitarTom View Post
                Thought I might share my new project. RS225S-8 X2 in a ML-TL cabinet. I have to thank Paul Kittinger for drawing up the plans. Thanks Paul. The wood is cut and ready to glue. Not quite sure what I'm going to do with the out side finish, though. Guitar Tom
                I wonder how many DIYers' projects were designed by Paul? I have two ML-TL projects waiting in the wings that Paul designed for me. One uses 6-1/2" Audax Aerogel drivers, then other is for the Dayton Classic 6-1/2".

                To see the "family tree" descending from Paul would be an interesting thing.

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                • #9
                  Re: New Project

                  I'd like to see that tree, too. I've modeled more TLs than I can remember for others, a number for people in other countries. I don't know that all have resulted in actual builds, however. Besides my own Marcatos, there were 3 TLs at this year's Iowa DIY event that I modeled. I have a map of the world that my younger daughter gave me with the intent to spread it out on a cork board and put pins in it everywhere to designate TLs I modeled, but I've just never started. It's not that I don't have the time; I'm just lazy or I soon lose interest in some things, I guess.
                  Paul

                  Originally posted by rogoll View Post
                  I wonder how many DIYers' projects were designed by Paul? I have two ML-TL projects waiting in the wings that Paul designed for me. One uses 6-1/2" Audax Aerogel drivers, then other is for the Dayton Classic 6-1/2".

                  To see the "family tree" descending from Paul would be an interesting thing.

                  Comment


                  • #10
                    Re: New Project

                    Originally posted by Paul K. View Post
                    I'd like to see that tree, too. I've modeled more TLs than I can remember for others, a number for people in other countries. I don't know that all have resulted in actual builds, however. Besides my own Marcatos, there were 3 TLs at this year's Iowa DIY event that I modeled. I have a map of the world that my younger daughter gave me with the intent to spread it out on a cork board and put pins in it everywhere to designate TLs I modeled, but I've just never started. It's not that I don't have the time; I'm just lazy or I soon lose interest in some things, I guess.
                    Paul
                    One another thread you mentioned what an "old geezer" you are. Something I've noticed as I grow older, is the desire to do for others. You become less focused on self, and much more on others...and family comes to mean so much more. There are a great many people grateful for you help!

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                    • #11
                      Re: New Project

                      Originally posted by rogoll View Post
                      One another thread you mentioned what an "old geezer" you are. Something I've noticed as I grow older, is the desire to do for others. You become less focused on self, and much more on others...and family comes to mean so much more. There are a great many people grateful for you help!
                      and when you're retired, you have more time on your hands to do the things you love. :D

                      Paul designed a couple TLs for projects I worked on but never personally built. I know I've designed a LOT more speakers than I've ever built, simply because it's fun to do. I'm guessing that's why Paul cranks out the models he does, because it's fun, as well as rewarding. I've seen the same character trait across different hobbies. A buddy of mine is a short wave enthusiast, and I see a lot in common with the speaker building community.

                      This winter I'll be working on the dual 8" TL Paul designed for me back in July. I can't wait to hear it. Like the others here, many thanks to Paul, and especially Martin King for creating such an excellent tool.

                      Check out Martin's TL gallery and you'll see a number of Paul's efforts featured there.
                      R = h/(2*pi*m*c) and don't you forget it! || Periodic Table as redrawn by Marshall Freerks and Ignatius Schumacher || King Crimson Radio
                      Byzantium Project & Build Thread || MiniByzy Build Thread || 3 x Peerless 850439 HDS 3-way || 8" 2-way - RS28A/B&C8BG51

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                      • #12
                        Re: Thanks guys...

                        I really, REALLY appreciate your kind comments. Pete's right; when you're retired you can mostly do what you enjoy the most. For me that's obviously designing and building speakers, but I can't begin to build all of the designs I might like because I'd really be speaker poor. Modeling for others allows me to design more than I would ever build, satisfying the creative itch to a large extent and being lots of fun to boot. Pete's thanks to Martin King for providing his very accurate and extensive worksheets, without which I'd be "up the creek" when designing TLs, is very appropriate.
                        Paul

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                        • #13
                          Re: New Project

                          You're very welcome and I hope you didn't feel your progress report was unappreciated with this thread meandering away a bit by shifting its focus towards me. I certainly didn't intend for my work to hijack your thread. BTW, I sent you an email about this project and hope you got it.
                          Paul

                          Originally posted by GuitarTom View Post
                          Thanks Paul

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                          • #14
                            Re: New Project

                            So, I finished the bass bins. Now I need to build the mid and tweeter section.
                            GuitarTom
                            Attached Files

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                            • #15
                              Re: New Project

                              More pics
                              Attached Files

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