ToNasty Posted July 20, 2016 Report Share Posted July 20, 2016 Question. With aeros ice heard it can be half the distance away from a wall as the sole of the port because of the port ratio. Such as 4" port can be 2" away This is not true? I depends on if you are trying to avoid any interaction between the port and the box or just trying to avoid negatively effecting port performance. If all you are concerned about is avoiding negatively affecting port performance, the port only needs to be 1/4 of a diameter away from the back wall to have the same amount of area for air to escape as the port has. So that's the bare minimum, though its going to require the air to make a pretty sharp 90 degree bend, so it still could cause some air resistance. Probably figure at least 1/3 diameter to be safe. Having it that close WILL affect tuning though. If you want to make sure there is no interaction between the port and the box (which would cause the tuning to be lower than intended) that's where the guideline for keeping the port one diameter away from walls comes from. Keeping the port at least 1 diameter away is definitely the ideal situation, but we all know that's not how things work out all the time. There have been efforts to take advantage of having the port end near an internal wall, the Polk power port is an example: So with this being said the aeros do take up less room and are more efficient than a slot port if done right? Reason being is i sold all of my saws and shit when I got sick a year ago and using aero port is now a lot easier for me to do than slots? ***Super Sellers List***http://www.stevemeadedesigns.com/board/topic/25829-super-sellers-buyers Link to comment Share on other sites More sharing options...
Triticum Agricolam Posted July 20, 2016 Report Share Posted July 20, 2016 So with this being said the aeros do take up less room and are more efficient than a slot port if done right? Reason being is i sold all of my saws and shit when I got sick a year ago and using aero port is now a lot easier for me to do than slots? Well the short answer is "it depends". There are two kinds of efficiency we are concerned about when it comes to ports, space efficiency and air flow efficiency. Compared to a 3 common wall slot port a single large aero port will beat a slot port for both space and air flow efficiency. Where the slot port starts being the better choice is when you start using multiple smaller aero ports or when you have to put bends in them to get them long enough. Using two aero ports is going to be roughly equivalent to a single large slot port. Once you get up to three or more smaller aero ports the slot port is going to be more efficient both in terms of the space it takes up and the air it can flow. "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...
ToNasty Posted July 20, 2016 Report Share Posted July 20, 2016 Does the port area apply the same for both aero and slot though? ***Super Sellers List***http://www.stevemeadedesigns.com/board/topic/25829-super-sellers-buyers Link to comment Share on other sites More sharing options...
Nightshade Posted July 20, 2016 Report Share Posted July 20, 2016 Does the port area apply the same for both aero and slot though? Port area will always be larger with a slot port. There are some designs where this is not the case, but a normal ported box the slot will always have about 20% more area than an aeroport. 2013 VW Jetta GLI 2.0 Turbo 1 Sundown Audio SCV2000 1 Sundown Audio X15 V2 1 XS Power D3100 Audio Control LC6i Stock Deck 146.4 sealed on the dash at 37hz 2001 Focus ZX3: RETIRED Team Sundown Audio, Team XS Power, 2 time NSPL Car 3601-Up Champion, 2 time NSPL Car Hardcore ChampionHighest NSPL Scores to date:154.3db on the dash sealed at 46hz, 156.2db in the kick at 46hz155.2db unofficial on dash at 43hz Link to comment Share on other sites More sharing options...
Triticum Agricolam Posted July 20, 2016 Report Share Posted July 20, 2016 Does the port area apply the same for both aero and slot though? +1 to what Nightshade said. You can generally get away with 20% less port area with a single large straight aero port vs a slot port. I'd still suggest keeping port velocity below 30 m/sec though. "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...
ToNasty Posted July 20, 2016 Report Share Posted July 20, 2016 This is where I don't know a thing. The 30m/sec thing I have no way to determine that. I'm not good with computers ***Super Sellers List***http://www.stevemeadedesigns.com/board/topic/25829-super-sellers-buyers Link to comment Share on other sites More sharing options...
Triticum Agricolam Posted July 20, 2016 Report Share Posted July 20, 2016 This is where I don't know a thing. The 30m/sec thing I have no way to determine that. I'm not good with computers I'd be happy to check for you. Or when in doubt error on the high side with port area. "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...
baron_of_bass Posted July 20, 2016 Report Share Posted July 20, 2016 "Now I need to make a template of the port shape to make it easier to make the interior window braces that will match up to the port contour." Can you explain how you did this. Team Bass-Hz Link to comment Share on other sites More sharing options...
im45pl Posted July 20, 2016 Report Share Posted July 20, 2016 Nice work Brian, great woodwork as usual TEAM DC AUSTRALIA My_Build_Log Link to comment Share on other sites More sharing options...
audiofanaticz Posted July 20, 2016 Author Report Share Posted July 20, 2016 "Now I need to make a template of the port shape to make it easier to make the interior window braces that will match up to the port contour." Can you explain how you did this. With the 1/4 inch spiral, and the large bearing on the flush trim bit. You can use it to make almost a interlocking positive and negative of a piece so they can come together as one. Link to comment Share on other sites More sharing options...
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