Torres Posted October 17, 2010 Author Report Share Posted October 17, 2010 looks good, except one thing. imagine a line going down the middle of that box in the pic, from top to bottom. you have a 5.5" wide port. each chamber is going to act independently, so technically each 'box' has a 2.75" wide port. and since this is the case, where the port bends and follows along the back of the port, that should not be 5.5", but 2.75". the port just becomes 5.5" because it's being shared. follow what i'm sayin? Link to comment Share on other sites More sharing options...
1 Sock Posted October 17, 2010 Report Share Posted October 17, 2010 looks good, except one thing. imagine a line going down the middle of that box in the pic, from top to bottom. you have a 5.5" wide port. each chamber is going to act independently, so technically each 'box' has a 2.75" wide port. and since this is the case, where the port bends and follows along the back of the port, that should not be 5.5", but 2.75". the port just becomes 5.5" because it's being shared. follow what i'm sayin? 100% understand, Thanks for the help. time to make some sawdust! Link to comment Share on other sites More sharing options...
knowledge Posted October 18, 2010 Report Share Posted October 18, 2010 just one port? just put 1 in the "# of ports" box, then put 4 inches in for diameter. then length is 9". you want the port to be at least the same distance as the diameter from the back of the box so if the diameter is about 4 inches, it should be about 4 inches from the wall of the box? and what if i put the port, say more or less than 4 inches from the back of the box? what would i put for woofer displacement? sorry for all the questions, just trying to learn this. REFF'SMy linkEBAYhttp://feedback.ebay...ck&myworld=trueI love car audio so much because I will never be done. I can never win, and I will never get it finished or perfect. It always has me coming back for more, I can never get my fill of it, but I get what I need. Link to comment Share on other sites More sharing options...
Torres Posted October 18, 2010 Author Report Share Posted October 18, 2010 more than 4" is ok, less than 4" pinches the air more or less into the port and won't allow the port to fully function to its potential. .25 or maybe even .5" may not make an audible difference, but if you get 2" away from the back of the box then there starts to be issues Link to comment Share on other sites More sharing options...
armyranger3858 Posted October 20, 2010 Report Share Posted October 20, 2010 i am using two 4" aero ports with a length of 5.5 now is that with both flares attached and is that 5.5 a piece? Link to comment Share on other sites More sharing options...
Torres Posted October 20, 2010 Author Report Share Posted October 20, 2010 no, it's 4". if you use flares, accommodate for the flares appropriately Link to comment Share on other sites More sharing options...
armyranger3858 Posted October 21, 2010 Report Share Posted October 21, 2010 alright thanks bro Link to comment Share on other sites More sharing options...
zZZzzzSnooze Posted October 23, 2010 Report Share Posted October 23, 2010 Common Port Walls, should that always be set as 1 or only if there is a bend in the slot port? How about when the port don't have a bend, but just about goes to the other side. Set it as 0? Baffle Thickness, When i go from .75 to 1" the volume don't change, Why is this? Baffle is not included in the Gross volume? Net volume, Is this the volume i should be looking at for recommended Subwoofer Cubic Feet? zZZzzz.....Snooze! Link to comment Share on other sites More sharing options...
n8ball2013 Posted October 23, 2010 Report Share Posted October 23, 2010 baffle thickness doesnt change because its not inside the box. i bet your tuning frequency changes slightly. if the port bends you now have two common port walls. and yes on the net THERE IS NO BUILD LOG! 1998 Chevy Silverado ext cab Alpine CDA-9887 4 Team Fi 15s 2 Ampere Audio TFE 8.0 2 Ampere Audio 150.4 3 Digital Designs CS6.5 component sets Dual Mechman 370XP Elite alternators inbound! 8 XS Power d3400 6 XS power d680 Second Skin Stinger Tsunami Wiring Sky High A Real Voltmeter not a piece of shit stinger. Link to comment Share on other sites More sharing options...
zZZzzzSnooze Posted October 23, 2010 Report Share Posted October 23, 2010 baffle thickness doesnt change because its not inside the box. i bet your tuning frequency changes slightly. if the port bends you now have two common port walls. and yes on the net So My 16" by 16" by 21" box don't include the Baffle Thickness at all? It would make more sense if it did like one of the older versions of Box Tuning Calculator. But it's all good, I'll just factor in the Thickness of the Baffle so it will come up to the size that it should be, So is that the right way? Link to comment Share on other sites More sharing options...
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