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  • New design: "The Cumbres"

    This thread will document my latest design/project, The Cumbres. They are an 18 Litre 3-way monitor using some very good quality drivers. The enclosures have curved sides that start parallel at the bottom then narrow towards the top. Overall outside dimensions are 9" wide x 17" tall x 13.75" deep.

    The bottom end will be anchored with the very capable Usher 8945A:

    http://www.parts-express.com/usher-8...oofer--296-600

    The midrange duties will be handled with the Morel MDM55 dome:

    http://www.parts-express.com/morel-m...range--287-020

    The top octaves will be reproduced with the Fountek NeoCD1.0 ribbon tweeter:

    http://www.parts-express.com/fountek...eeter--296-701

    The enclosures are about half way completed. I used 3/4" Baltic birch for the super structure. The sides are 5 layers of 1/8" MDF and HDF. I will update this thread with pictures and measurements as the project proceeds.
    Craig

    The lowest possible F3 box alignment is not always the best alignment.

    Designing and building speaker projects are like playing with adult Lego Blocks for me.

  • #2
    Re: New design: "The Cumbres"

    Originally posted by PWR RYD View Post
    This thread will document my latest design/project, The Cumbres. They are an 18 Litre 3-way monitor using some very good quality drivers. The enclosures have curved sides that start parallel at the bottom then narrow towards the top. Overall outside dimensions are 9" wide x 17" tall x 13.75" deep.

    The bottom end will be anchored with the very capable Usher 8945A:

    http://www.parts-express.com/usher-8...oofer--296-600

    The midrange duties will be handled with the Morel MDM55 dome:

    http://www.parts-express.com/morel-m...range--287-020

    The top octaves will be reproduced with the Fountek NeoCD1.0 ribbon tweeter:

    http://www.parts-express.com/fountek...eeter--296-701

    The enclosures are about half way completed. I used 3/4" Baltic birch for the super structure. The sides are 5 layers of 1/8" MDF and HDF. I will update this thread with pictures and measurements as the project proceeds.
    nice selection of drivers. looking forward to the thread, and I am sure this will be a great sounding speaker
    craigk

    " Voicing is often the term used for band aids to cover for initial design/planning errors " - Pallas

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    • #3
      Re: New design: "The Cumbres"

      Oooohhhhh!!!!! This is gonna be nice !
      https://www.facebook.com/Mosaic-Audi...7373763888294/

      Comment


      • #4
        Re: New design: "The Cumbres"

        In process:

        Craig

        The lowest possible F3 box alignment is not always the best alignment.

        Designing and building speaker projects are like playing with adult Lego Blocks for me.

        Comment


        • #5
          Re: New design: "The Cumbres"

          Same M-T complement as the Cantilenas- It should sound quite good!
          Later,
          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*

          Photobucket pages:
          http://photobucket.com/Wolf-Speakers_and_more

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

          Comment


          • #6
            Re: New design: "The Cumbres"

            I can't wait to hear these!! I don't think I've ever heard that Morel mid before, very curious!
            "The ability of any system to produce exceptional sound will be limited mainly by the capability of the speakers" Jim Salk
            "Audio is surely a journey full of revelations as you go" JasonP

            Comment


            • #7
              Re: New design: "The Cumbres"

              To this day, the "Day of the Tentacle" pervades our collective subconscious...

              Isn't it about time we started answering rhetorical questions?

              Paul Carmody's DIY Audio Projects
              Twitter: @undefinition1

              Comment


              • #8
                Re: New design: "The Cumbres"

                Hey Craig, there is a fairly good layer of sawdust on your 5-Liter. As a Blue Blooded Mustang Man myself, I understand life has its little compromises. I noticed you use dollys to move the Steel Horse around, good idea. Great looking build, your clamping setup is quite ingenious. All the best, Mike

                Comment


                • #9
                  Re: New design: "The Cumbres"

                  My thoughts, exactly, and the woofer choice is equally good.
                  Paul

                  Originally posted by Wolf View Post
                  Same M-T complement as the Cantilenas- It should sound quite good!
                  Later,
                  Wolf

                  Comment


                  • #10
                    Re: New design: "The Cumbres"

                    That's a pretty sweet driver line-up!
                    -Kerry

                    Comment


                    • #11
                      Re: New design: "The Cumbres"

                      Yup, this is gonna be good. I hope I get to hear these someday.

                      Comment


                      • #12
                        Re: New design: "The Cumbres"

                        Originally posted by PWR RYD View Post
                        In process:

                        Hmm... something looks weird about the cutout for the woofer....
                        Brian Steele
                        www.diysubwoofers.org

                        Comment


                        • #13
                          Re: New design: "The Cumbres"

                          and the stang needs a bath ... :p
                          Paper Towers
                          RS180P/28F surrounds
                          Boombox

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                          • #14
                            Re: New design: "The Cumbres"

                            Originally posted by Brian Steele View Post
                            Hmm... something looks weird about the cutout for the woofer....
                            Luckily that is not the baffle. Most of that board will be cut away, leaving just enough for bracing and to mount the T-nuts used fasten a removable hardwood baffle.
                            Craig

                            The lowest possible F3 box alignment is not always the best alignment.

                            Designing and building speaker projects are like playing with adult Lego Blocks for me.

                            Comment


                            • #15
                              Re: New design: "The Cumbres"

                              Looks like a nice compliment of drivers Craig. Look forward to hearing them.
                              " To me, the soundstage presentation is more about phase and distortion and less about size. However, when you talk about bass extension, there's no replacement for displacement". Tyger23. 4.2015

                              Quote Originally Posted by hongrn. Oct 2014
                              Do you realize that being an American is like winning the biggest jackpot ever??

                              http://www.midwestaudioclub.com/spot...owell-simpson/
                              http://s413.photobucket.com/albums/pp216/arlis/

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