Kallior Posted December 14, 2023 Report Share Posted December 14, 2023 So i have been trying to make my own ported/vented enclosure for my DD Audio 612 sl D2 woofer but I don't have prior experience in this. I have GAS PRO 1001.1 amplifier for it and I plan to run it at 1 ohms. So do eny of you know how large of an enclosure should I make for it and what sized and lenght port should I use? Is 50l enclosure and 3 inch wide and 20cm long port too small? Quote Link to comment Share on other sites More sharing options...
Kallior Posted December 14, 2023 Author Report Share Posted December 14, 2023 I want to run it between 30-35Hz and it's 12 inch subwoofer Quote Link to comment Share on other sites More sharing options...
Joe X Posted December 15, 2023 Report Share Posted December 15, 2023 Let me know what vehicle are you using and why did you pick a shallow mount sub and not a regular one. Quote Link to comment Share on other sites More sharing options...
Kallior Posted December 15, 2023 Author Report Share Posted December 15, 2023 regular sized woofer and box didn't fit in my previouse car. I have seat exeo 2.0tdi wagon with back seats of now. But the old box broke so I need to make a new one for it. and i don't have the money to by a regular sized woofer right now. I plan to make the new box form 25 mm thick mdf board Quote Link to comment Share on other sites More sharing options...
Jaym Posted December 15, 2023 Report Share Posted December 15, 2023 (edited) https://www.the12volt.com/caraudio/boxcalcs.asphttps://www.the12volt.com/caraudio/boxcalcs.asp Try this site it helps it's better than hearing 2.5 cf 1.7 cf what factory recommends I don't have that much experience but it's not my 1st time throwing a system in my ride. 1st one I had that hit was two 12s in a 4 ft box and it slammed hope this helps even helps with tune. good luck man through some pics Edited December 15, 2023 by Jaym Quote Link to comment Share on other sites More sharing options...
Jaym Posted December 15, 2023 Report Share Posted December 15, 2023 6 hours ago, Kallior said: regular sized woofer and box didn't fit in my previouse car. I have seat exeo 2.0tdi wagon with back seats of now. But the old box broke so I need to make a new one for it. and i don't have the money to by a regular sized woofer right now. I plan to make the new box form 25 mm thick mdf board Quote Link to comment Share on other sites More sharing options...
Kallior Posted December 16, 2023 Author Report Share Posted December 16, 2023 So should I build a 2.5 cf box eaven though factory recomends 1.7cf? Can the woofer break if i make too large of an box? Quote Link to comment Share on other sites More sharing options...
Joe X Posted December 16, 2023 Report Share Posted December 16, 2023 First determine the box size you are comfortable with I say the 1.75 net is fine given your amp is 1000W RMS and your sub is 600W RMS, large box size means you will need to run it a little more carefully and set your subsonic filter higher. Quote Link to comment Share on other sites More sharing options...
Kallior Posted December 16, 2023 Author Report Share Posted December 16, 2023 (edited) Okey that helps me a lot. But should I run a 3 Inch wide round port or 4 inch wide ? And at what lenght? Edited December 16, 2023 by Kallior Quote Link to comment Share on other sites More sharing options...
Joe X Posted December 17, 2023 Report Share Posted December 17, 2023 For 1.75 net a 4" port needs to be 14.7" long for a 33Hz tuning. Said that a 4" round port is barely large enough for 600W power if you push more power you may get port noise. Ideally a slot port with 20 square inches of port area is needed to get the best out of the sub in a ported enclosure. Quote Link to comment Share on other sites More sharing options...
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