mfdoom7 Posted February 24, 2019 Report Share Posted February 24, 2019 what if i make slot port with rounded edges inside and outside ? will i loose or gain output ? Also do i need to brace subwoofer blox if its built with 22mm or 0.86inch OSB. we are talking about 1 15" on 1.2k rms right now box is tuned low 30hz. also what effect is on adding 45 to 90 corners. like this one Link to comment Share on other sites More sharing options...
ckeeler11 Posted February 25, 2019 Report Share Posted February 25, 2019 Having the corners rounded will help with air flow. Doubtful you will hear any difference. The more bracing the better.I would brace any panel over 12" just because the more rigid the enclosure the better. Why are you using OSB instead of MDF or Birch? Link to comment Share on other sites More sharing options...
Triticum Agricolam Posted February 26, 2019 Report Share Posted February 26, 2019 You want air to be able to flow through the port as smoothly as possible. As such, rounding the inside and outside mouths of the port is a good idea. This is also why adding the 45 pieces to the inside of the port like what shown in the picture you posted is also a good idea. It helps the air make the 90 degree corner better. As far as bracing goes, I completely agree with ckeeler11, I brace any panel with more than a 10-12" unbraced span. I almost always brace the baffle regardless of how large of panel it is. "Nothing prevents people from knowing the truth more than the belief they already know it.""Making bass is easy, making music is the hard part."Builds: Link to comment Share on other sites More sharing options...
mfdoom7 Posted February 26, 2019 Author Report Share Posted February 26, 2019 20 hours ago, ckeeler11 said: Why are you using OSB instead of MDF or Birch? Cheaper than birch but stronger than mdf. Link to comment Share on other sites More sharing options...
mfdoom7 Posted February 26, 2019 Author Report Share Posted February 26, 2019 15 hours ago, Triticum Agricolam said: You want air to be able to flow through the port as smoothly as possible. As such, rounding the inside and outside mouths of the port is a good idea. This is also why adding the 45 pieces to the inside of the port like what shown in the picture you posted is also a good idea. It helps the air make the 90 degree corner better. As far as bracing goes, I completely agree with ckeeler11, I brace any panel with more than a 10-12" unbraced span. I almost always brace the baffle regardless of how large of panel it is. this is my current box. built with 22mm OSB and 45 on 90degree port and sanded off oposite side of 90. does brace give more output im my case ? or not worth it ? Link to comment Share on other sites More sharing options...
Triticum Agricolam Posted February 26, 2019 Report Share Posted February 26, 2019 4 hours ago, mfdoom7 said: this is my current box. built with 22mm OSB and 45 on 90degree port and sanded off oposite side of 90. does brace give more output im my case ? or not worth it ? With that design I would put a shelf brace linking your top, bottom, and port panels together. You can cut holes in the brace so it takes up less internal volume. "Nothing prevents people from knowing the truth more than the belief they already know it.""Making bass is easy, making music is the hard part."Builds: Link to comment Share on other sites More sharing options...
BassMunky Posted February 26, 2019 Report Share Posted February 26, 2019 Very nicee Shakin not Stirred....my buildhttp://www.stevemead...ngle-cab-build/412 CVX And put a sealed enclosure in your trunk cut a hole in your deck and call it ported Link to comment Share on other sites More sharing options...
ckeeler11 Posted February 27, 2019 Report Share Posted February 27, 2019 On 2/26/2019 at 9:02 AM, mfdoom7 said: Cheaper than birch but stronger than mdf. It is actually less rigid than MDF and does not hold screws well at all. Link to comment Share on other sites More sharing options...
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