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-   -   Trying to Create Ported Box, Bass Box what do these Graphs say/mean? (https://www.caraudioforumz.com/general-discussion-10/trying-create-ported-box-bass-box-what-do-these-graphs-say-mean-2573/)

ChizzerZ24 09-13-2004 10:07 AM

^^That being said, what's the graphs show good or bad for a box? lol What do I need to "tinker" with to get it optimal at best.?

Paul Niwranski 09-13-2004 01:02 PM

So 4 whole hours after you get your pics to work you are already annoyed that nobody has responded? Dude - it was Sunday - not too many people are around. [img]graemlins/freak.gif[/img] I know, as my only day off, I am rarely around on Sundays..

I'd like to see a cone excursion plot cuz the response curves look like the box 'might' be too big [img]graemlins/dunno.gif[/img] That or that woofer has a pretty impressive QTS.

ex everything 09-13-2004 01:14 PM

watch the port air velocity: around 100 ft/sec is too high and you will hear the air movement through the port.

ChizzerZ24 09-13-2004 03:11 PM


Originally posted by Dukk:
So 4 whole hours after you get your pics to work you are already annoyed that nobody has responded? Dude - it was Sunday - not too many people are around. [img]graemlins/freak.gif[/img] I know, as my only day off, I am rarely around on Sundays..

I'd like to see a cone excursion plot cuz the response curves look like the box 'might' be too big [img]graemlins/dunno.gif[/img] That or that woofer has a pretty impressive QTS.

Nah not annoyed, I've just seen post before get put up and in like litterally minutes people have jumped on it lol so my apologize for being impatient I kinda tend to get that way when I am somewhat "excited" about something. I have this really stupid habit, if it's not avail or I can't get it home that day I won't buy it if I want something I want it now lol...

ChizzerZ24 09-13-2004 03:13 PM


Originally posted by ex everything:
watch the port air velocity: around 100 ft/sec is too high and you will hear the air movement through the port.
The program will a "dark" or "faded' line indicating the port has to much turbulence which then will cause whistling and what not. So I alterd the port size abit then it put it to "acceptable" limits but I guess it needs to be more acceptable lol

ChizzerZ24 09-13-2004 03:15 PM


Originally posted by Dukk:


I'd like to see a cone excursion plot cuz the response curves look like the box 'might' be too big [img]graemlins/dunno.gif[/img] That or that woofer has a pretty impressive QTS.

The EBP is 97 and the QTS is 0.29 so not sure is .29 low high? not sure like I said this ported box is totally new to me.

[ September 13, 2004, 04:18 PM: Message edited by: ChizzerZ24 ]

2 8's AKA Jeepbeats 09-13-2004 09:40 PM

If you have the time and some spare MDF, mayeb try a box around 2.25-2.5 cubes, maybe tuned to 30hz, around there? I have run Jl 10's in boxes tuned around 35hz and was always happy. Maybe try a 2.5 cube box, with a slot port, 7" high by 3" wide, by 21" long, if you can fit it. That will give a max vent velocity of 18 m/s, at around 25hz. Should work well, maybe some of the Eclipse pros can help you out, Mr2nr, Gilligan's Hitch, or Chadxton......

ChizzerZ24 09-13-2004 09:58 PM

^^^Will do!

Thanks

2 8's AKA Jeepbeats 09-13-2004 10:05 PM

No problem, might be a bit of trial and error, but if the box does not work for your application you can always sell it, or keep it for something else.

Jmac 09-13-2004 11:19 PM

www.eclipse-car.com recommends 1.75 ft^3 tuned to 45 Hz ...


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