SkyAustin Posted May 13, 2016 Author Report Posted May 13, 2016 Im flexible on tuning frequency, it doesnt have to be that low. This is what i just ran through the calculator (in profile picture). So to tune to 40 hz I need an 8" diameter port at ~17" long?
SkyAustin Posted May 13, 2016 Author Report Posted May 13, 2016 Shit you guys cant see that lol. How do you post pictures?
Joe X Posted May 13, 2016 Report Posted May 13, 2016 For these particular drivers three 4" ports seem not necessary: Red is a single 4" port Orange is a couple of 4" ports Yellow is a single 6" port Based on the above either the two 4s or the single 6" will do fine. - Updated plot for the current RF P2d4 12 which is 400W.
Triticum Agricolam Posted May 13, 2016 Report Posted May 13, 2016 For these particular drivers three 4" ports seem not necessary: Red is a single 4" port Orange is a couple of 4" ports Yellow is a single 6" port Based on the above either the two 4s or the single 6" will do fine. Your input power in the graph is only 250 watts. "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:
kirill007 Posted May 13, 2016 Report Posted May 13, 2016 I would do 2 6 inch ports. Thinking is the root of all problems... You ALWAYS get what you pay for.
Joe X Posted May 13, 2016 Report Posted May 13, 2016 Your input power in the graph is only 250 watts. The model was for an earlier version of the sub but now it's updated and it still looks like the 3 4" are not necessary in this case.
Joe X Posted May 13, 2016 Report Posted May 13, 2016 I would do 2 6 inch ports. One should never skimp on port area
SkyAustin Posted May 14, 2016 Author Report Posted May 14, 2016 Ended up buying an 8" diameter aeroport that is 18" long. Judging from the port calculator I should be tuned around 40hz. Thanks for all the help and information.
Triticum Agricolam Posted May 14, 2016 Report Posted May 14, 2016 Ended up buying an 8" diameter aeroport that is 18" long. Judging from the port calculator I should be tuned around 40hz. Thanks for all the help and information. Sounds good! Let us know how it works out, I suspect the difference in output is not going to be subtle. "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:
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