I've built many sealed boxes, but never a ported. I'm working on trying to get a box ready for a ported enclosure, having some issues. I'm working with a 99 HCCA 15D calls for Port Length 14" Port Diameter 2 4" Intelli- Q setting 33hz @8db
Well here's the issue, I've tried using box calculaters and such, just playing around, and everytime I change the dimensions of the box and such, it changes the frequency of the box. how do I build with these stats and keep the 33hz or is that a dynamic number that can change, I'm not understanding. Or do I, or can I change the port length and diameter, instead of the tuning frequency?
from what I've seen the 4ft3 and 33hz is the important part, why do they list the port diameter and port length for this? are those supposed to be static too? or is the port length and diameter for a round port? I think that might've been what I was missing Please help
What is the ideal size for your sub? When you figure out how big your box needs to be for the sub then you can determine the port length, width and tuning.
what do you mean ideal size for the sub? it's a 15", has a 7.5" mounting depth, mounting diameter is 13.875, displacement is 503inches3 does it matter what the port length and width is, if it ends up coming out to 33hz? I mean with everything put together it comes out to 33hz
where are you getting the 12-16 inches from? is that on the aero port? Because I wanna do a slot port.
the calculator I'm using gives me a place to change port width and port length here's what I came up with, maybe it's totally wrong but here goes Box Width 30 Height 18.5 Depth 19 Wood 1" Port hght 17.5 port width 3 port lngth1 15 port lngth2 6 ttl length 26.5 port diam 17 port area 52.5 Volume Int 1396.25 displacemnt1411.25 Box Vol 4.004ft3 Tune Freq 32.97
maybe a little too detailed, but did I screw that up?
it lists, 3 types of boxes. the one I just posted was for SQ, says it will play the best overall, give really low freq so on. Also gives a boomer box that requires 4.25ft3 and 40hz also SPL (only supposed to use for db drag or damage subs) 4.75ft3 lists 50 and 60hz for freq
which should I use for everyday listening and competing? I would like to compete for both spl and sq, not sure if that's possible, but my main goal is the db's... but I'm not entering in a db drag or somethin with 1 15 lol
Okay, well I'm curious here, where did you get the 48/64 I'm banging my head against a wall trying to figure this crap out, another guy on another forum is telling me my port needs to be 4x3... that's nuts? I've been looking for a conversion, as far as I can tell it's based on Surface Area
