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  1. hallb76

    Questions on First DIY Sub Build

    Great link Robert, I really like those speakers, but, I have come to the sad realization that this project is going to consume far more time and effort than I had anticipated. My receiver won't drive a 4 ohm load so I would have to replace my entire system or redesign an 8 ohm speaker and...
  2. hallb76

    Questions on First DIY Sub Build

    I don't have much room between my television stand and the wall. If the sub is too tall I won't have a spot for my front speakers. I can't put the sub in the back of the room because it will be blocking a door on either side of the room. I don't see any problem extending the port beyond the box...
  3. hallb76

    Questions on First DIY Sub Build

    Brent, I'm retarded, I never converted the x-max to meters for winISD. I am getting a very nice response curve for the db-500 now. I have to make the box nearly cubic, is there anyway I can extend the port using an elbow so it will fit in the box or can I use a port with a diameter of less...
  4. hallb76

    Questions on First DIY Sub Build

    I ran the numbers for the db-500 and the response curve looks really strange. It has a dip around 35hz and a spike around 20hz. I have a feeling that I made a mistake somewhere. The Quattro is showing a considerable spl advantage with half the input power. (200w vs 400w) Given the lower cost...
  5. hallb76

    Questions on First DIY Sub Build

    Robert, Thanks for your input. It is sealed to a degree, there is a 1/2" space under the entry door and a 1/2" space under the closet door, otherwise it is sealed. It wouldn't be a problem seal up the doors if it would have a positive affect. I'll have to check out the db500. Thanks again for...
  6. hallb76

    Questions on First DIY Sub Build

    I would like to build a sub using a Quattro 15 and a rythmik 250w plate amp or a PE bash 300 for use in a 8.5x10 room. The room is completely closed on all sides. I will use it for 90% HT/gaming and 10% music. I would like it to hit 20 hz with some authority without being boomy. Since reading...
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