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Midwest Audio Fest

It’s that time audio enthusiasts! Registration for the 2019 Speaker Design Competition is now open! Visit midwestaudiofest.com for details and to list your speaker project. We are excited to see all returning participants, and look forward to meeting some new designers this year, as well! Be sure your plans include a visit to the Parts Express Tent Sale for the lowest prices of the year, and the Audio Swap Meet where you can buy and trade with other audio fans. We hope to see you this summer! Vivian and Jill
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  • #31

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    • #32
      Originally posted by dynamo View Post
      I’m excited for this build.
      good to hear cause we're getting serious now !!!

      Paper Towers
      RS180P/28F surrounds
      Boombox

      Comment


      • #33
        Excellent - Really neat driver selection with the DS90-Neo MTM and the RS225 for W. Sim looks good for sure to start!

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        • #34
          i really like how the baffle layout looks ... fix'in to cut that now ...




          Paper Towers
          RS180P/28F surrounds
          Boombox

          Comment


          • #35
            phew !!!







            still much work . tomorrow i'll i'll build the mtm chamber , pre-wire it and pre-drill , screw everything down and start to get the XO together . i'm thinking it will be playing and measurements on Sat.
            Paper Towers
            RS180P/28F surrounds
            Boombox

            Comment


            • #36

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              • #37
                man 3 ways are a lot of work ....

                got the port cut which then allowed me to do the bracing . mtm chamber built and attached to baffle . lined and stuffed . all drivers wired and in place . all that's left is pre-drilling and screwing everything . i also gathered most of the XO components into a pile ....

                time for a few cold ones and to crank up my big black beauties .....

                Paper Towers
                RS180P/28F surrounds
                Boombox

                Comment


                • #38
                  as i sit here rock'in out enjoying a cold adult beverage i went through my XO parts .... i'm missing a 3mH for the woofer , so i came up with this from parts i have on hand and what i'll start with tomorrow until i can order some ....


                  Paper Towers
                  RS180P/28F surrounds
                  Boombox

                  Comment


                  • #39
                    That is still an excellent looking response. That downward slope is something that is talked about quite regularly, with a white paper (by Toole?) showing that in a blind test, speakers with that downward sloping response were preferred over speakers with flat response. All that to say, you will probably like it! How do the reverse nulls look?

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                    • #40
                      Originally posted by scottvalentin View Post
                      That is still an excellent looking response. That downward slope is something that is talked about quite regularly, with a white paper (by Toole?) showing that in a blind test, speakers with that downward sloping response were preferred over speakers with flat response. All that to say, you will probably like it! How do the reverse nulls look?

                      the one thing i've noticed in the 3-4 speakers i have designed is my ear likes a certain signature which has the top end down 3-5db ....


                      got all my XO parts together and starting on that now ...


                      Paper Towers
                      RS180P/28F surrounds
                      Boombox

                      Comment


                      • #41
                        i will add that flushing the DS90's is kind of a pain in the azz ! the magnet is big and not much smaller than the frame . the tabs lay down over it and using insulated connectors forced me to notch the through hole . if i ever use them again they will get rear mounted and or i'll solder the leads .
                        Paper Towers
                        RS180P/28F surrounds
                        Boombox

                        Comment


                        • #42
                          Originally posted by scottvalentin View Post
                          How do the reverse nulls look?
                          ,meh ....



                          Paper Towers
                          RS180P/28F surrounds
                          Boombox

                          Comment


                          • #43
                            LOL ! one day i'll figure out how to make them look decent ....


                            Paper Towers
                            RS180P/28F surrounds
                            Boombox

                            Comment


                            • #44
                              and that mess is this ....







                              getting ready to fire it up now .
                              Paper Towers
                              RS180P/28F surrounds
                              Boombox

                              Comment


                              • #45
                                very nicely balanced ... setting up to measure now .
                                Paper Towers
                                RS180P/28F surrounds
                                Boombox

                                Comment

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