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Thread: My Drew Daniel's inspired DIY project.

  1. #46
    Senior Member
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    Quote Originally Posted by 1audiohack View Post
    Cough up that red pill if you can!
    Nicely said. I currently have 8 12"s on my bedroom floor.

  2. #47
    Senior Member Baron030's Avatar
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    Hi Badman

    Here is a link to my 2012 passive EQ circuit: http://audioheritage.org/vbulletin/s...ad.php?t=20823

    Baron030

  3. #48
    Senior Member Baron030's Avatar
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    With some renewed interest in my old project, I realized that I had never posted the passive high pass shelving network circuit for the 2446H/2382a combination. Just as a reminder this system uses an active crossover network and separate amplifier channels for each driver. The active crossover network is set to feed a 1,200Hz to 8,000Hz signal range to the 2446H driver. And a 2405 driver handles all frequencies about 8KHz. After running some tests with Clio, I did find that the 2446H/2382a combination does have a slight roll off issue that starts at about 4,500 Hz and builds to about a 5 db drop at 8 KHz. In the circuit pictured below the array of 82uF caps provide for driver protection. And the 5 and 20 ohm resistors form an L-PAD, which at lower frequencies attenuates the signal by about 5.5 db. The 30uf caps bypass the 5 ohm resistor at higher frequencies and this reduces the attenuation of the L-PAD to less than 1 db at 8 KHz. In practice, this simple shelving network does a pretty good job of flatten the 2446H/2382a combination out to 8 KHz.

    Baron030
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  4. #49
    Senior Member maxwedge's Avatar
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    Thumbs up

    I like the retro style of your cabinets. Nice job!

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