• 01-31-2004, 08:46 PM
    jerky1280
    Where to get crossover plans?
    I've got all the drivers picked out for my system:

    Tweeters: Audax 3/4" shielded Titanium Dome #TM020J7
    Mids: Audax 5.25" Shielded Aerogel Midrange #AP130ZO
    Woofers: 12" Dayton Shielded DVC Subwoofer #295490
    (all on sale from partsexpress.com :D )

    My center will be two mids and a tweeter, the two fronts a tweeter, a mid, and a woofer, and the two rears a tweeter and a mid. I hope that the two 12's will suffice for low-end until I can afford to put in a real sub.

    Now my question is, where do I go to find crossover plans and parts? I've heard that madisound can do them, are there any others? And how much can I expect the rest of the materials run me?
  • 01-31-2004, 10:49 PM
    F1
  • 02-01-2004, 06:23 AM
    jerky1280
    Quote:

    Originally Posted by F1

    Wow! It's sweet that it's that easy. That will work for all of my 2-ways, but is there a resource I can use to design my 3-way crossover for my two front speakers?

    I think that I might just browse through the preassembled crossovers for one that meets my application. How do I decide where to have the crossover points? The frequency specs from the speakers are as follows:

    AUDAX TM020J7 3/4" SHIELDED TITANIUM DOME TWEETER
    Frequency response: 3,000-20,000 Hz
    AUDAX AP130ZO 5-1/4" SHIELDED AEROGEL MIDRANGE
    Frequency range: 57-6,000 Hz
    DAYTON 12" SHIELDED DVC SUBWOOFER
    Frequency range: 30-1,000 Hz

    Thanks for the help!

    EDIT: The Audax speakers are 6 ohm, the dayton is 8.
  • 02-01-2004, 07:52 AM
    F1
    Try this:
    http://www.the12volt.com/caraudio/cross12db.asp#bp
    You need high pass for tweeter, band pass for midrange, and low pass for woofer.
    Happy design.
  • 02-01-2004, 12:29 PM
    jerky1280
    Quote:

    Originally Posted by F1
    Try this:
    http://www.the12volt.com/caraudio/cross12db.asp#bp
    You need high pass for tweeter, band pass for midrange, and low pass for woofer.
    Happy design.

    Sweet. Now, two questions.

    1. For my fronts (tweeter, mid, woofer), do I wire the crossovers in parallel from the

    2. How do I decide where to make the cutoff for each speaker's frequency? I know that each speaker has a range, but I read somewhere that the crossover point must be twice the Fs. I guess that just applies to the mid and tweeter, right?
  • 02-03-2004, 10:03 AM
    Swerd
    Quote:

    Originally Posted by jerky1280
    How do I decide where to make the cutoff for each speaker's frequency? I know that each speaker has a range, but I read somewhere that the crossover point must be twice the Fs. I guess that just applies to the mid and tweeter, right?

    I found this website useful. http://www.speakerbuilder.net/web_files/default.htm

    Scroll down to the list of articles and read these:

    • Crossover construction
    • Finding the Optimum Crossover Frequency
    • How "Phat" is Flat
    • Ken Perkins' Series Crossover Primer
  • 02-03-2004, 05:43 PM
    jerky1280
    After a lot of research, I've decided to go with a design that I found on solen's website. Using components from Parts Express, I should be able to get the parts for about 60% of what Solen is charging!