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Thread: Home Brew Sub

  1. 04-24-2007, 12:10 PM #1
    hydroman
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    Home Brew Sub

    The Plan
    is to to build a 15" sub using a sealed design. I will power with my NAD amp in mono mode. The question is 'what should be the impedence of the speaker?' Can i use a 4ohm speaker (i think the amp 'sees' 1 ohm in mono mode this way - jah?) or do i need to use an 8 ohm speaker? Or in mono mode the impedance is whatever the speaker is - so no problem? I believe NAD is stable to 1 ohm...

    Thanks!
    H/K AVR635 7.1
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  2. 04-26-2007, 06:38 PM #2
    JeffKnob
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    If you have your amp bridged to mono and connect it to a 4ohm sub, it will be the same as if your amp was connected to two 2ohm speakers in stereo. Likewise, if you connect an 8ohm sub it will be like two 4 ohm stereo. From what I can tell, your amp will do 400W RMS, 1200W peak. That should work very well with a 15" Dayton Titanic.
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  3. 04-30-2007, 12:10 PM #3
    hydroman
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    Okay - that is what i needed!

    Yes - i am already getting ready to get THAT sub.
    woof. BIG woof.
    H/K AVR635 7.1
    Denon DVD900
    AE AEGIS III Mains
    ION USB Turntable w/ Shure M97XE
    15" Titanic III Sealed Enclosure Sub
    Dayton Rackmount 1000W :O
    Denon Surrounds
    Sony Bravia KDL40S2000
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  4. 04-30-2007, 02:01 PM #4
    Rock789
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    doing anything fancy or just a cube?
    HT: Anthem AVM 50 / PVA-7; Focal JM Lab 4x Chorus 716 S, CC 700 S, 2x Chorus 706S; 2x 12s - Homebuilt Sub
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  5. 05-01-2007, 11:42 AM #5
    hydroman
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    KISS
    I plan to do the cube. The basement/ManCave is pretty big and forgiving.
    H/K AVR635 7.1
    Denon DVD900
    AE AEGIS III Mains
    ION USB Turntable w/ Shure M97XE
    15" Titanic III Sealed Enclosure Sub
    Dayton Rackmount 1000W :O
    Denon Surrounds
    Sony Bravia KDL40S2000
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