MichiganBumps Posted May 30, 2020 Report Share Posted May 30, 2020 Did some reading online and bit of looking here but didn't find my answer ...especially since search function don't work? Was wondering how to determine if I should use 2x4" 6" 2x6" Etc for one 15" sub 15" Neo Elite 135AH Lithium Bank Taramps Bass30k 320a Brand X Purple Metallic Ho Alt 125+ Ft of oversized 1/0 Link to comment Share on other sites More sharing options...
Fish Chris Posted May 30, 2020 Report Share Posted May 30, 2020 Well the exact sub in question is important. If the manufacturer lists the the recommended port area, just do a few quick calculations, and there you go. If not, give the company a call, and ask them what "will work the best" with your sub. One larger port is more efficient that multiple smaller ones. Areo ports look cool, but don't really do that much that a regular round port doesn't. They will reduce port noise (air turbulence over the edges of the port) but if your port area is sufficient in the first place. you shouldn't have much of that anyway. BTW, 6" "flared ports" are pretty easy to make I used 6" PVC riser tube (cheap) sat an old bowling ball on one end then slowly heated the edge of the pipe, while spinning it around, with a heat gun until it started to flare. Link to comment Share on other sites More sharing options...
Joshdashef Posted May 30, 2020 Report Share Posted May 30, 2020 ^ What he said. One port is the better option, but if you split into multiple ports the LENGTH remains the same!!! If you halve the length for two ports you will be tuning way high, so make sure you keep the same length for each port regardless of how many you have. You probably will want to go with atleast an 8" aero port for that 15, just under 50" squared of port area. You can find the port area of a aero port (or a circle) via googles tool. Just input radius. Formula is Pi * r squared. https://www.google.com/search?q=area+of+circle&rlz=1C1MSNA_enUS651US651&oq=area+of+circle&aqs=chrome.0.69i59l2j69i65l2j69i60l3.1283j0j7&sourceid=chrome&ie=UTF-8 SMD Tool Map (2022): https://www.stevemeadedesigns.com/board/topic/220267-smd-tool-map-2022/ My Port Size Calculator (in progress): https://www.stevemeadedesigns.com/board/topic/217087-port-size-calculator-in-progress/ Common Port Walls for a Slot Port: https://www.stevemeadedesigns.com/board/topic/217076-common-port-walls-why-it-matters-to-your-box/?tab=comments#comment-3240313 Link to comment Share on other sites More sharing options...
1point21gigawatts Posted May 30, 2020 Report Share Posted May 30, 2020 Yup. One 8” aero port. “How can we help you?” “And don’t forget to tell them that the customer isn’t always right.” Link to comment Share on other sites More sharing options...
MichiganBumps Posted May 30, 2020 Author Report Share Posted May 30, 2020 Thank u so much for ur replies and info!!! I Did order one about a week and half ago from big ass ports, but never got a tracking number, messaged the guy on here, still nothing back. so went to lowes and got some 6" pvc. the sub in question is a 15" Neo Elite. Yeah i havent done the truck build yet, covid shit has really slowed that down 😕 so wanted to make a box to specs for the neo, since the one i had was made for my 15" TRF. And there is little to no info for the DC Neo Elites. I'll give them a call monday tho, idk why i didnt think of that. btw the bowling ball trick, holy crap thats slick lol i may h ave to do that since cant buy flared ends from HD, lowes, etc. TYVM 15" Neo Elite 135AH Lithium Bank Taramps Bass30k 320a Brand X Purple Metallic Ho Alt 125+ Ft of oversized 1/0 Link to comment Share on other sites More sharing options...
fishchris1 Posted May 30, 2020 Report Share Posted May 30, 2020 8" Wow ! That's a big port. But I wouldn't really be surprised. Subs nowadays are made to move a lot of air. Ya' know, if you have a hard time finding 8" pipe, you might try using a piece of 8" Sono tube. You can paint it inside and out really thick with fiberglass resin (or even a layer of fiberglass) to toughen it up, plus make it non pourous. You could probably even flare the end with enough work, resin, and sanding.... But with an 8" port, it would just be for looks. You will never get port noise with an 8" port. Link to comment Share on other sites More sharing options...
1point21gigawatts Posted May 31, 2020 Report Share Posted May 31, 2020 NO PORT NOISE, EVER. “How can we help you?” “And don’t forget to tell them that the customer isn’t always right.” Link to comment Share on other sites More sharing options...
1point21gigawatts Posted May 31, 2020 Report Share Posted May 31, 2020 3 hours ago, MichiganBumps said: Thank u so much for ur replies and info!!! I Did order one about a week and half ago from big ass ports, but never got a tracking number, messaged the guy on here, still nothing back. so went to lowes and got some 6" pvc. the sub in question is a 15" Neo Elite. Yeah i havent done the truck build yet, covid shit has really slowed that down <img src="> so wanted to make a box to specs for the neo, since the one i had was made for my 15" TRF. And there is little to no info for the DC Neo Elites. I'll give them a call monday tho, idk why i didnt think of that. btw the bowling ball trick, holy crap thats slick lol i may h ave to do that since cant buy flared ends from HD, lowes, etc. TYVM I’ve been meaning to ask you. What ohm load are the voice coils on that neo elite? “How can we help you?” “And don’t forget to tell them that the customer isn’t always right.” Link to comment Share on other sites More sharing options...
fishchris1 Posted May 31, 2020 Report Share Posted May 31, 2020 3 hours ago, MichiganBumps said: Thank u so much for ur replies and info!!! I Did order one about a week and half ago from big ass ports, but never got a tracking number, messaged the guy on here, still nothing back. so went to lowes and got some 6" pvc. the sub in question is a 15" Neo Elite. Yeah i havent done the truck build yet, covid shit has really slowed that down <img src="> so wanted to make a box to specs for the neo, since the one i had was made for my 15" TRF. And there is little to no info for the DC Neo Elites. I'll give them a call monday tho, idk why i didnt think of that. btw the bowling ball trick, holy crap thats slick lol i may h ave to do that since cant buy flared ends from HD, lowes, etc. TYVM Hey if your going to do the bowling ball, let me just give you one pointer..... Keep the heat right at the edge of the pipe, especially at first until the edge start to curl away from the ball. If you heat too much of the pipe at one time, it will try to buckle further down. Of course if you screw it up, you can always cut off the lip, sand it flat and try again. Did you find those 6" riser tubes ? You can get those 6" x 24" for like $8.99 @ Home Depot or Lowe's. ☮️ Link to comment Share on other sites More sharing options...
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