KiKaZz74 Posted January 28, 2014 Report Share Posted January 28, 2014 so in the spring my plan is to trade off my Fi BL 18 and get a Sundown X15 and trade my brz1700 for a ct 900 or 1400 or the new c2 lines. sundowns site says 3-6 cubes for the x15 at 35 Hz. i have the basic shape down but i suck at ports if someone can give me a formula to figure out tuning and how to find port area thatd be great. or if u can figure it out for me thats great. i was wondering about a kerfed port also. sub forward and port up amp rack on side are kerfed ports worth doing or should i just slot port it and round the edges? heres what i got so far tho 30w 24h 14h1 20h2 2 layer baffle 45 in back corner came up with ~5.15 cubes after sub displacement and 45 no bracing yet or port how does it look so far? will end up with carpet and rounded corners most likely but thats not important right now lemme know option on port sub will be behind driver seat of my truck so the right side of that 3D box port position and dimensions? kerfed? formula equation for tuning freq? how to find port area? thanks guys Cody C. My SPL to SQ Build Log Vehicle:1997 Dodge Dakota Ext Cab 4x4 2009 Dodge Journey SXT5.2L V8 Magnum 3.5L V6 Stock AltEquipment: Headunit- Alpine CDE-147BT Mids/Highs Amp- JL Audio G6600 Class AB 6 Channel Sub Amp- Hifonics BRZ1700.1D @ 2 Ohms Taramps DSP3000.1D Sub- Hertz Hi Energy 12" HX300D SounDrive SDA3 12 Tweeters- Rockford Fosgate Power Series Silk Domes Hertz Hi-Energy Mids- Dayton Audio Reference 4" Full Range Drivers Midbass- Silver Flute 6.5" Hertz Hi-Energy 6.5" Processor- MiniDSP 2x4 RCA- 6 channels of SounDrive HF series Wire- EB Flex 2/0 -Member of Team SounDrive Link to comment Share on other sites More sharing options...
Joe X Posted January 28, 2014 Report Share Posted January 28, 2014 A single 8" aero firing sideways 18.75" long would leave you to about 4.5 cubes net @35Hz which would be about right for that sub. Link to comment Share on other sites More sharing options...
KiKaZz74 Posted January 28, 2014 Author Report Share Posted January 28, 2014 I was wanting to go port up so I can put amps on the side. The top is flush with my window in back so I didnt want to go any higher if I could help it. My SPL to SQ Build Log Vehicle:1997 Dodge Dakota Ext Cab 4x4 2009 Dodge Journey SXT5.2L V8 Magnum 3.5L V6 Stock AltEquipment: Headunit- Alpine CDE-147BT Mids/Highs Amp- JL Audio G6600 Class AB 6 Channel Sub Amp- Hifonics BRZ1700.1D @ 2 Ohms Taramps DSP3000.1D Sub- Hertz Hi Energy 12" HX300D SounDrive SDA3 12 Tweeters- Rockford Fosgate Power Series Silk Domes Hertz Hi-Energy Mids- Dayton Audio Reference 4" Full Range Drivers Midbass- Silver Flute 6.5" Hertz Hi-Energy 6.5" Processor- MiniDSP 2x4 RCA- 6 channels of SounDrive HF series Wire- EB Flex 2/0 -Member of Team SounDrive Link to comment Share on other sites More sharing options...
Joe X Posted January 28, 2014 Report Share Posted January 28, 2014 You can run the aero partially external, nominally needs 8" clearance from the bottom. Link to comment Share on other sites More sharing options...
KiKaZz74 Posted January 28, 2014 Author Report Share Posted January 28, 2014 Where would I even get a 8" port? Biggest is 6" around here in 10' chunks only. I just though top would a better option and I wanted to try kerfing. But ill look at all options and aero ports are flared correct? Or are aeros just straight pipes like what I currently have? My SPL to SQ Build Log Vehicle:1997 Dodge Dakota Ext Cab 4x4 2009 Dodge Journey SXT5.2L V8 Magnum 3.5L V6 Stock AltEquipment: Headunit- Alpine CDE-147BT Mids/Highs Amp- JL Audio G6600 Class AB 6 Channel Sub Amp- Hifonics BRZ1700.1D @ 2 Ohms Taramps DSP3000.1D Sub- Hertz Hi Energy 12" HX300D SounDrive SDA3 12 Tweeters- Rockford Fosgate Power Series Silk Domes Hertz Hi-Energy Mids- Dayton Audio Reference 4" Full Range Drivers Midbass- Silver Flute 6.5" Hertz Hi-Energy 6.5" Processor- MiniDSP 2x4 RCA- 6 channels of SounDrive HF series Wire- EB Flex 2/0 -Member of Team SounDrive Link to comment Share on other sites More sharing options...
alaskanzx5 Posted January 28, 2014 Report Share Posted January 28, 2014 Aero Ports are flared but you can make your own using pvc. I think you can special order 8"pvc from home depot or Lowes. Could use 4 4" or 2 6" Ports as well. t1500bdcp 2 t2d4 15" 1 t600.4 1 t400.2 1 set p1 tweets singer alt, tons of wiring, smd vm-1, 80prs, back seat delete, still in the works, aiming for a 145-147 with the ability to play 25hz up to 50hz. Link to comment Share on other sites More sharing options...
Joe X Posted January 28, 2014 Report Share Posted January 28, 2014 There are a number of solutions, up to 5 feet cheap: http://www.ebay.com/bhp/8-pvc-pipe or VERY cheap like this: http://www.homedepot.com/p/SAKRETE-8-in-x-48-in-Concrete-Form-Tube-65470075/100321209 and many others. Or you can build a slot port if you don't mind the extra work. Link to comment Share on other sites More sharing options...
KiKaZz74 Posted January 28, 2014 Author Report Share Posted January 28, 2014 Oh duh. Forgot about concrete tubes. But I think id want to try a slotport on top. How hard is kerfing? Id like to try that possibly. But could you give the slot port dimensions and location if its not all the way acrossed? How hard is it to make your own aero port? Metal bowl and a few torches I was thinking? My SPL to SQ Build Log Vehicle:1997 Dodge Dakota Ext Cab 4x4 2009 Dodge Journey SXT5.2L V8 Magnum 3.5L V6 Stock AltEquipment: Headunit- Alpine CDE-147BT Mids/Highs Amp- JL Audio G6600 Class AB 6 Channel Sub Amp- Hifonics BRZ1700.1D @ 2 Ohms Taramps DSP3000.1D Sub- Hertz Hi Energy 12" HX300D SounDrive SDA3 12 Tweeters- Rockford Fosgate Power Series Silk Domes Hertz Hi-Energy Mids- Dayton Audio Reference 4" Full Range Drivers Midbass- Silver Flute 6.5" Hertz Hi-Energy 6.5" Processor- MiniDSP 2x4 RCA- 6 channels of SounDrive HF series Wire- EB Flex 2/0 -Member of Team SounDrive Link to comment Share on other sites More sharing options...
Joe X Posted January 28, 2014 Report Share Posted January 28, 2014 The flared PVC can be done correctly doing this http://www.subwoofer-builder.com/flares-25mm.htm the bowl method gives you a reversed flare would be less beneficial to say the least. As you say due to the slant the slot port can't go all across so kerfing would be difficult I guess rounding the end would be enough as long as there's proper port area. The down side of a slot port is that it has a larger displacement. Link to comment Share on other sites More sharing options...
KiKaZz74 Posted January 28, 2014 Author Report Share Posted January 28, 2014 On that side pic the slant is into my seat. I was thinking slot across the back flat part and kerf onto the top of the box. But I think slot would look better how im picturing it turning out My SPL to SQ Build Log Vehicle:1997 Dodge Dakota Ext Cab 4x4 2009 Dodge Journey SXT5.2L V8 Magnum 3.5L V6 Stock AltEquipment: Headunit- Alpine CDE-147BT Mids/Highs Amp- JL Audio G6600 Class AB 6 Channel Sub Amp- Hifonics BRZ1700.1D @ 2 Ohms Taramps DSP3000.1D Sub- Hertz Hi Energy 12" HX300D SounDrive SDA3 12 Tweeters- Rockford Fosgate Power Series Silk Domes Hertz Hi-Energy Mids- Dayton Audio Reference 4" Full Range Drivers Midbass- Silver Flute 6.5" Hertz Hi-Energy 6.5" Processor- MiniDSP 2x4 RCA- 6 channels of SounDrive HF series Wire- EB Flex 2/0 -Member of Team SounDrive Link to comment Share on other sites More sharing options...
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