Announcement

Collapse

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
See more
See less

The Rally Sports - Dayton Pro Driver 15" 3-way

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • #31
    Beautiful craftmanship as usual Javad. Kudos!
    Don't worry, if your parachute fails, you have the rest of your life to fix it.

    If we all did the things we are capable of doing, we would literally ASTOUND ourselves - Thomas A. Edison

    Some people collect stamps, Imelda Marcos collected shoes. I collect speakers.:D

    Comment


    • #32
      Javad -- Rookie question here, but how do you use the DATs software to measure the actual port frequency of the constructed box? I didn't realize one could do this until you had a little excerpt about it with one (1) of your pictures.

      Beautiful build by the way. TBO I always treated poplar as "drift wood" ever since I was a kid. It was the wood that we used to fill in corners of cabinets, brace for counter-tops, etc. You have completely changed my outlook on this. Gorgeous boards you have selected for this build and nice craftsmanship.

      Also love that you used pro-audio drivers! I don't have any technical reasoning or wording to explain why I like them better, but I generally lean towards those of Eminence, Faital, and B&C over the home Hifi stuff. I love a good compression driver in the right wave guide too. Cheers!
      Chris
      "I don't know everything and do not claim to. I continue to learn and that is what makes me human."

      Comment


      • #33
        Originally posted by thekorvers View Post
        Beautiful craftmanship as usual Javad. Kudos!
        Thanks!
        --
        Javad Shadzi
        Bay Area, CA

        2-Channel Stereo system in the works with Adcom components and 4-way towers

        Comment


        • #34
          Originally posted by STIchris722 View Post
          Javad -- Rookie question here, but how do you use the DATs software to measure the actual port frequency of the constructed box? I didn't realize one could do this until you had a little excerpt about it with one (1) of your pictures.
          All you need to do is a full impedance sweep of the driver mounted in the enclosure, the fs of the enclosure is where impedence rises, dips, then rises again, the lowest point in the dip is the Fs. IMO this is critical to designing and building any ported enclosure, and IME modeling programs will only get you close, sometimes as far off as 10hz, that's too much error, and doing it this way allows you to nail the exact frequency you intended to in the modeling.

          Beautiful build by the way. TBO I always treated poplar as "drift wood" ever since I was a kid. It was the wood that we used to fill in corners of cabinets, brace for counter-tops, etc. You have completely changed my outlook on this. Gorgeous boards you have selected for this build and nice craftsmanship.
          Thanks! You know that seems to be the way many do look at it, but the "painted or rainbow" poplar is just one of the most beautiful woods I've ever worked with, it's also a really nice wood to work with as the grain is straight and tight in most cases. Normal yellow poplar is pretty boring, but this stuff with character I've fallen in love with.

          Also love that you used pro-audio drivers! I don't have any technical reasoning or wording to explain why I like them better, but I generally lean towards those of Eminence, Faital, and B&C over the home Hifi stuff. I love a good compression driver in the right wave guide too. Cheers!
          Chris
          You know, I've made it my goal to play with as many different types of drivers as possible to expand my horizons, and pro drives do dynamics, efficiency and transients VERY well, you have to choose your compromises just like with any driver type, but they shine in those areas. I love all the Pro driver builds Iv'e done and will continue to use them as well as HiFi drivers.

          Thanks for the kind words and thoughts Chris!

          Javad
          --
          Javad Shadzi
          Bay Area, CA

          2-Channel Stereo system in the works with Adcom components and 4-way towers

          Comment


          • #35
            Thank you for sharing this design. I'm seriously considering building a smaller version for my home theater L-C-R speakers. I started a new thread about it. Should not be hard to find. The challenge is finding tehright smaller woofer than mate up with subs, but match the efficiency of the mid.

            Comment

            Working...
            X