Ari12 Posted September 25, 2020 Report Share Posted September 25, 2020 Goodday all. Am trying my hands on building a box for my american bass xfl1222 sub. I've found a post about this using xmax for port area but it was just to much to soak in so am making a new 1. I have 2.5net to work with max,and i want to tune to 32hz. I can always use winisd or 12v to get the port length. I used a site called carstero online calculator an entered the xmax an it said a minimal of 12.5sq" per cube. Am more looking for what is that exact figure for best deep loud bass performance you know and i dont want to use the 12-16 "general rule". Can someone give me a figure that will work? Sub- american bass xfl1222 Xmax- 17.5mm Tuning 32hz Power- roughly 1800-2000rms wired to 1ohm Thanks in advance. Link to comment Share on other sites More sharing options...
1point21gigawatts Posted September 25, 2020 Report Share Posted September 25, 2020 That port area calculator factoring in xmax can’t be used because that calculator doesnt factor in net volume or rms. It told me the minimum port area I needed was 115sq” on a round port and the enclosure is 4.5 cubic feet. That’s super wrong. But in your case, that calculator was correct. But I would recommend about an inch and half more per cubic foot. “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...
Ari12 Posted September 25, 2020 Author Report Share Posted September 25, 2020 So 14sq" per cube for that sweet spot? Also, is winisd and 12v accurate for giving port lengths? I noticed that their about a .25" different, but that shouldn't be audible correct? Link to comment Share on other sites More sharing options...
1point21gigawatts Posted September 25, 2020 Report Share Posted September 25, 2020 Correct, 14sq” per cubic foot is what I recommend. And 12v is always on point. Winisd has some flaws but is a good program, for sure. “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...
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