Proper way to mod a Sony SAWM40 Sub?

Discussion in 'Archived Threads 2001-2004' started by Alex_Santos, Nov 29, 2002.

  1. Alex_Santos

    Alex_Santos Second Unit

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    I want to mod my sub but im not sure which materials to use and on which walls of the sub to use it. Should I use the bulk polyfill or the sheet? If bulk, how many packages or pounds would be appropriate? If sheet, how many sheets per wall? Also, what should I use to hold the polyfill, if anything. Thanks for the help.
     
  2. Patrick Sun

    Patrick Sun Moderator
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    Start with 16 ounces of the stuffing, not the sheets.
     
  3. Alex_Santos

    Alex_Santos Second Unit

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    Thanks chief, anyone else?
     
  4. Brian Bunge

    Brian Bunge Producer

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    Alex,
    Patrick has pretty much got you covered. There's not much else you can do to improve the Sony aside from building your own! [​IMG]
     
  5. Alex_Santos

    Alex_Santos Second Unit

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    Ok, so I start with the stuffing. Then what?
     
  6. Brett DiMichele

    Brett DiMichele Producer

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    Then you put it in the hole [​IMG]
    You have to carefully unscrew the driver (speaker) from
    the cabinent. It should be secured with 8 or 12 symetricaly
    spaced screws. (You have to remove the grill to see this)
    Once you have removed all of the screws securing the driver
    to the cabinent you can slowly pull the driver out away from
    the cabinent. When you get it out far enough reach behind it
    and unplug the positive and negative speaker wires. Make
    sure that you note thier orientation on the speaker. I do
    not know if Sony color codes (Red/Black) the wires or if
    they use black wire/black wire white stripe to denote polarity
    or if they use two different sized terminals.
    The point is, make sure you know how to put the wires back
    on so that the polarity is right, if you wire the driver
    backwards it will fire out of phase.
    Once the driver is out just take the poly-fill and place it
    inside of the cabinent and make sure it's fluffed up nicely
    but also make sure it's not going to get entangled in the
    driver as it moves.
    Other than that, well that's it.. Just reverse the previous
    steps to put it all back together and enjoy!
     
  7. Alex_Santos

    Alex_Santos Second Unit

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    Any glue? If not, then do I stuff it to the brim to keep it from moving around. I was reading somewhere that you should only put the stuffing around 3/4 of the sub to give it room to breathe. Wondered what you all thought?
     
  8. Sebastian

    Sebastian Second Unit

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    I would only line the walls with 2"-3" poly batting (sheets) and do not obstruct the port with the poly fill. Typically you line the walls in a ported sub and stuff a sealed (no port) sub.
    It probably does not matter but that's what I heard around here.
    Here are some links. Do a search on the sub and you will be reading for days.
    Sony mods
    An earlier thread on sony mods
     
  9. Alex_Santos

    Alex_Santos Second Unit

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    Its interesting that you advise the sheets over the bulk. Ive been reading around and there seems to be no consensus. Glue seems to be fairly optional as well. Im open to more suggestions if anyone has them.
     

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