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DIY with mfw 15 woofer

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  • DIY with mfw 15 woofer

    I'm getting an mfw15 woofer with some cosmetic damage from GR Research here for 59$. Any opinions about using it with a
    SA1 sub amp
    in a sealed sand filled box? Could I do better amp wise for about the same money?

  • #2
    Parts express has a sale right now on their Dayton Audio 240W amps. Those might be a little better, for a little bit less.

    http://www.parts-express.com/pe/psho...4&ctab=14#Tabs

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    • #3
      How about the BASH amps? I can get them in Canada, so less $...

      And how do you pick a sub amp anyway?

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      • #4
        DIW? :peekaboo:

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        • #5
          Originally posted by django1
          I'm getting an mfw15 woofer with some cosmetic damage from GR Research here for 59$. Any opinions about using it with a
          SA1 sub amp
          in a sealed sand filled box? Could I do better amp wise for about the same money?
          I think if you are going to run it sealed the Dayton with the bass boost will yield the best results. I like the way it looks with a 3-3.5 cu ft box. And it is just under xmax with rated 240w.

          Modeling it in a vented box of the same size at 20hz, not a huge difference in output. F3 moves from around 34hz to 29hz. But the Dayton should make that F3 drop even more for sealed.

          The Oaudio 300w would be a good choice for vented too.

          I'm not sure why you would sand fill the box? There are other ways to get a stable cabinet and better things to use for fill.

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          • #6
            Originally posted by edgebsl

            I'm not sure why you would sand fill the box? There are other ways to get a stable cabinet and better things to use for fill.
            I thought I would build this one.

            As I had to decide quickly I decided to get the SA 1 for this reason:"The really unique thing about this amp is the output response. A special gain circuit has been designed that will mirror image the roll off of a sealed box or open baffle design.". And I want to do a sealed box... Anyway this can't help but being a step up from my x-sub right?:D

            I'm excited, speakers are great but subs are just plain fun...

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            • #7
              I already have three of these woofers. Back in July, I asked Mark Seaton if he would provide a DIY design for a two driver sub. He sounded interested in the idea, but so far hasn't posted anything. The thread is available in Sandbagger's forum (Motor City Custom Audio).

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              • #8
                Mark has been a bit busy

                All of those and more are headed to the land down under
                now if we could only power them all up



                Originally posted by mojave
                I already have three of these woofers. Back in July, I asked Mark Seaton if he would provide a DIY design for a two driver sub. He sounded interested in the idea, but so far hasn't posted anything. The thread is available in Sandbagger's forum (Motor City Custom Audio).
                Kevin
                Motor City Custom Audio
                Your Onix and MELODY Dealer for MI,IN,IL,MO,IA,MN,WI and Canada
                Bringing you Chopped/Cut/Modified Subwoofer Kits and even Flames if you want

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                • #9
                  I spoke to Danny for a few minutes today and he says the subwoofer would be good in an open baffle with the SA 1. I think I'll try that first. It won't take very long...

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                  • #10
                    Just wanted to let you know that I am starting work on a pretty cool DIY for all those UFW drivers out there......


                    THIS SHOULD BE FUN:saywhat::whoopie:
                    Kevin
                    Motor City Custom Audio
                    Your Onix and MELODY Dealer for MI,IN,IL,MO,IA,MN,WI and Canada
                    Bringing you Chopped/Cut/Modified Subwoofer Kits and even Flames if you want

                    Comment


                    • #11
                      sounds like a cool idea.

                      I am thinking of fixing the blown out spider on a damaged mfw 15 driver that I have. would be cool to pair an ob with the my current mfw. (though I am adapting that to a new smaller living room setup, and retiring the tiny energy 5.1 setup i got in the living room..

                      i look forward to seeing what you come up with..

                      :)


                      Matt
                      Still think Craig is in the "Chase" for that sense of humour. :neener 1:

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                      • #12
                        "All of those and more are headed to the land down under
                        now if we could only power them all up "

                        Now I have "Men at Work" stick in my head!

                        Lol!

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                        • #13
                          Here is a real noobish question:does the shape of the enclosure make a difference or is it just volume that matters?

                          I hope you have fun edgebsl !

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                          • #14
                            Just got the driver. Damn 15 inches is big!:yep:

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                            • #15
                              Originally posted by django1
                              Here is a real noobish question:does the shape of the enclosure make a difference or is it just volume that matters?

                              I hope you have fun edgebsl !

                              The driver does not know the shape of the enclosure so in my opinion no. It does not matter.

                              Bracing can matter a bit depending on what material you are using.

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