Wilson Audio X1-SLAMM "klones"

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  • ThomasW
    Moderator Emeritus
    • Aug 2000
    • 10934

    Wilson Audio X1-SLAMM "klones"

    How about saving $70,000+? :E



    X1-SLAMM klone project "work-in-progress" pic

    Wilson Audio, X1 GRAND SLAMM site





    theAudioWorx
    Klone-Audio

    IB subwoofer FAQ page


    "Complicated equipment and light reflectors and various other items of hardware are enough, to my mind, to prevent the birdie from coming out." ...... Henri Cartier-Bresson
  • JonMarsh
    Mad Max Moderator
    • Aug 2000
    • 15261

    #2
    Gee, that puppy looks kind of heavy.......



    And a little familiar, too.

    Wonder what kind of subwoofer you should use with something like that?

    -J
    the AudioWorx
    Natalie P
    M8ta
    Modula Neo DCC
    Modula MT XE
    Modula Xtreme
    Isiris
    Wavecor Ardent

    SMJ
    Minerva Monitor
    Calliope
    Ardent D

    In Development...
    Isiris Mk II updates- in final test stage!
    Obi-Wan
    Saint-Saëns Symphonique/AKA SMJ-40
    Modula PWB
    Calliope CC Supreme
    Natalie P Ultra
    Natalie P Supreme
    Janus BP1 Sub


    Resistance is not futile, it is Volts divided by Amperes...
    Just ask Mr. Ohm....

    Comment

    • Lexman
      Super Senior Member
      • Jun 2000
      • 1777

      #3
      Outstanding job Thomas and Jon. Perhaps an east tn audition will be in order? lol. I can always hope

      Jon, maybe you can run them full range if you push them?

      Lex





      <A HREF="http://www.catcables.com" <IMG SRC="http://www.htguide.com/lexman/other/sm_logo.gif"

      Comment

      • Andrew Pratt
        Moderator Emeritus
        • Aug 2000
        • 16507

        #4
        Nice speaker. whats the advantage of having the bottom midrange speaker in the MTM array pointing upwards, wouldn't this be firing up above the listeners head?




        Comment

        • ThomasW
          Moderator Emeritus
          • Aug 2000
          • 10934

          #5
          Andrew

          The top modules function as a "focused array". The angles of the top and bottom 7" are "aimed" and they converge at a fixed distance in front of the speaker. This creates the best "sweet spot" posssible.

          Jon will be glad to go into detail regarding this when he has time.




          theAudioWorx
          Klone-Audio

          IB subwoofer FAQ page


          "Complicated equipment and light reflectors and various other items of hardware are enough, to my mind, to prevent the birdie from coming out." ...... Henri Cartier-Bresson

          Comment

          • JonMarsh
            Mad Max Moderator
            • Aug 2000
            • 15261

            #6
            Thomas explained it fairly well; this configuration produces a better vertical dispersion in the upper midrange/low treble, improves the correlation between axial response and room power response, and reduces destructive interaction between the drivers in the region above 1.5 kHz. Don't credit me, credit Dave Wilson. I've designed and built conventional D'Apollitos, also, on flat baffles, including one with the same set of drivers and basic crossover; they don't work as well or sound as good.

            Regards,

            Jon




            Earth First!
            _______________________________
            We'll screw up the other planets later....
            the AudioWorx
            Natalie P
            M8ta
            Modula Neo DCC
            Modula MT XE
            Modula Xtreme
            Isiris
            Wavecor Ardent

            SMJ
            Minerva Monitor
            Calliope
            Ardent D

            In Development...
            Isiris Mk II updates- in final test stage!
            Obi-Wan
            Saint-Saëns Symphonique/AKA SMJ-40
            Modula PWB
            Calliope CC Supreme
            Natalie P Ultra
            Natalie P Supreme
            Janus BP1 Sub


            Resistance is not futile, it is Volts divided by Amperes...
            Just ask Mr. Ohm....

            Comment

            • John Holmes
              Moderator Emeritus
              • Aug 2000
              • 2703

              #7
              Thomas, Jon,
              You guys do awesome things when it comes to building. My hat goes off to you! I hope that one day, I will be able to try some of the wonderful plans and ideas that you gentlemen put before us.




              "I came here, to chew bubble gum and kickass. And I'm all out of bubble gum!!!" My DVD's
              "I have come here, to chew bubblegum and kickass. And I'm all out of bubblegum!!!"

              Comment

              • JonMarsh
                Mad Max Moderator
                • Aug 2000
                • 15261

                #8
                Lex,

                I call these "Maxi-Monitors" - kind of like "mini-monitors", only a little bigger.
                The bass tuning is to optimize output and dynamic range for music, so they aren't designed for high output at 16 Hz, rather, each cabinet can max out at about 118 dB at 1 meter cleanly from about 30 Hz up. This is a function of the cone area, power handling, xmax, and port tuning. Also, this is an overdamped alignment, which requires a simple shelving EQ (adjustable) to tune for flat response in the room they're used in. The custom electronic crossover for these is an intersting piece. It also includes baffle step equalization for the upper module. As efficient as these are (94 dB for the top module, about 98 dB for the bass bin), it doesn't take a whole lot of power to drive these, just something comfortable with variable load impedance, and reasonably low output impedance over the whole audio spectrum. In fact, the last couple of weeks I've been driving them with a "bargain basement" Sony TAN9000ES 5 channel amp (bargain, because it was bought from a Sony Outlet store as B-Stock). Very credible performance, from a nice, compact package (the amp, not the speakers!).
                Used to be 30 Hz was a fairly full range speaker, and they sound fine on music. But, for Home Theater, maybe a little re-inforcement below 35 would be desirable. If I had more room, I think an IB woofer like Tom's maybe with the 15" Adire's, would be great. The problem would be trying to match the output capability.

                Regards,

                Jon




                Earth First!
                _______________________________
                We'll screw up the other planets later....
                the AudioWorx
                Natalie P
                M8ta
                Modula Neo DCC
                Modula MT XE
                Modula Xtreme
                Isiris
                Wavecor Ardent

                SMJ
                Minerva Monitor
                Calliope
                Ardent D

                In Development...
                Isiris Mk II updates- in final test stage!
                Obi-Wan
                Saint-Saëns Symphonique/AKA SMJ-40
                Modula PWB
                Calliope CC Supreme
                Natalie P Ultra
                Natalie P Supreme
                Janus BP1 Sub


                Resistance is not futile, it is Volts divided by Amperes...
                Just ask Mr. Ohm....

                Comment

                • ThomasW
                  Moderator Emeritus
                  • Aug 2000
                  • 10934

                  #9
                  Here are some "spy" photographs of the custom active XO Jon built for the SLAMM klones. As with most spy photos they are a little blurry to obscure the details







                  theAudioWorx
                  Klone-Audio

                  IB subwoofer FAQ page


                  "Complicated equipment and light reflectors and various other items of hardware are enough, to my mind, to prevent the birdie from coming out." ...... Henri Cartier-Bresson

                  Comment

                  • JonMarsh
                    Mad Max Moderator
                    • Aug 2000
                    • 15261

                    #10
                    These "Spy" photographs were taken by one of Santa's elves that had been drinking too much Egg Nogg with rum, and was using the camera "handheld" instead of setting up the tripod.

                    All those funny transformer looking things near the connector panel are Jensen output transformers (balanced outputs), with -3 dB bandwidth of 0.1 Hz to 15 MHz. (Who says transformer coupling can't be wide band?). Connectors are Neutrick and Cardas.

                    The klugy looking board with all the blue square things (power transformers) and caps and heatsinks is a handbuilt power supply PCB.

                    The two identical PCB's are the crossover/output circuits, designed using Protel 99SE for schematics, simulation, and PCB layout. Bare doubled sided PCB (wtih ground planes) fabrication by Cordova Printed Circuits in Silicon valley (don't do this in your home!)
                    Burr Brown OPA627 DIFET opamps are used with Analog Devices AD815 (dual half amp, 15 MHz video power buffers, yes, they're equipped with heatsinks!) in the primary signal path, and OPA2134 in the LF sections of biquad filter. LF EQ and baffle step EQ is inlcuded in the output buffer stages. 10 turn metal element pots with counting dials are used for precision and low coloration (comparable to Shallco attenuators as pots).

                    Other than that, the spy Elve couldn't remember anything- too much rum in the Egg Nogg.

                    -Jon




                    Earth First!
                    _______________________________
                    We'll screw up the other planets later....
                    the AudioWorx
                    Natalie P
                    M8ta
                    Modula Neo DCC
                    Modula MT XE
                    Modula Xtreme
                    Isiris
                    Wavecor Ardent

                    SMJ
                    Minerva Monitor
                    Calliope
                    Ardent D

                    In Development...
                    Isiris Mk II updates- in final test stage!
                    Obi-Wan
                    Saint-Saëns Symphonique/AKA SMJ-40
                    Modula PWB
                    Calliope CC Supreme
                    Natalie P Ultra
                    Natalie P Supreme
                    Janus BP1 Sub


                    Resistance is not futile, it is Volts divided by Amperes...
                    Just ask Mr. Ohm....

                    Comment

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