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pimpedout97x
12-17-2006, 03:46 PM
what all do i have to measure and take into consideration to figure out the tuning of my wall? when robin designed it, i think it was tuned @ 33 and then we had to take 1.5" off the top, plus sub displacment and the bracing inside we did. im just curious as to how to figure out the most accurate estimate of my tuning....all the internal bracing is done, all i have to do is resin the corners. my mts have a displacment of .21 cu ft each, so thats .84 cu ft right there from the subs....

someone tell me how to do this:)

pimpedout97x
12-17-2006, 04:24 PM
come on someone knows lol

pimpedout97x
12-17-2006, 04:29 PM
Currently Active Users Viewing This Thread: 2 (2 members and 0 guests)
pimpedout97x , vetkilr

lol im a post *****

vetkilr
12-17-2006, 04:31 PM
Currently Active Users Viewing This Thread: 2 (2 members and 0 guests)
pimpedout97x , vetkilr

lol im a post *****

lol:laugh:

vetkilr
12-17-2006, 04:31 PM
Currently Active Users Viewing This Thread: 1 (1 members and 0 guests)
vetkilr


me too.......

pimpedout97x
12-17-2006, 04:45 PM
that was a waste of 2 posts in my thread and you didnt help me *****!!!!!!!!!!!!!111!!11!!1one111!!1eleven!11111! !!

j3bus2k3
12-17-2006, 06:30 PM
Measure your gross volume, internal heigh, width and depth...then subtract your port displacment as well as your driver displacment. That will give you net. Then use this forumla (http://mobile.jlaudio.com/support_pages.php?page_id=165) to determine your tuning.

saywhat?
12-17-2006, 06:32 PM
shouldnt too much higher. if anything lowering the port area lowered the tuning, and the sub displacement put it back around what you had.

less port area = shorter port. so keeping the same length, lowered your tuning, and made your box bigger by taking off that couple inches, but, you then put your subs in, which made up for lost room. shouldnt have fluctuated much, if any.

pimpedout97x
12-17-2006, 06:44 PM
would displacment from the bracing effect it as well?

that forumula looks confusing as hell!

j3bus2k3
12-17-2006, 06:45 PM
would displacment from the bracing effect it as well?

that forumula looks confusing as hell!

Yes, you need to subtract ALL displacments as they will affect the net tuning. Its actually very simple. Imagine having your tuning and needing to find Lv...thats what I deal with everytime I design a box for a friend. TI-83 FTW!!!

If you want...just post the numbers here and I'll crank it out in a minute or two. Just need internal width, height and depth; Port width, height and depth; And the width, height and length on any and all brace pieces...

pimpedout97x
12-17-2006, 06:53 PM
i have a fwe TI-83+s lol...ill measure tonite and post them up, but if you dont mind, explain to me with the number i post on how to do it, so next time i know :)

but im off at 930 tonight, so ill measure when i get home.

j3bus2k3
12-17-2006, 06:55 PM
i have a fwe TI-83+s lol...ill measure tonite and post them up, but if you dont mind, explain to me with the number i post on how to do it, so next time i know :)

but im off at 930 tonight, so ill measure when i get home.

Nots a problem...I may be out tonight but if I see it before I leave, I'll do some number crunching...I'm a math nerd, what can I say...

pimpedout97x
12-17-2006, 06:57 PM
cool!

Hintzyboy
12-17-2006, 10:06 PM
Meh to the TI-83. TI-89 Titanium FTW. That little baby made clac classes SO easy.

xluben
12-17-2006, 10:10 PM
Meh to the TI-83. TI-89 Titanium FTW. That little baby made clac classes SO easy.

calc I and II, yes

lin alg & diff eq and multivariable, not so much

but i do love how it can keep track of units for me!

and can store notes from word pad

and the millions of other ways it helps me

Hintzyboy
12-17-2006, 10:21 PM
i havent done anything past calcII yet. I'm at a 2 year school atm, and the Calc3 (I believe its differential eq's) is a distance learning course. I tried taking a DL Statics course and it ******. I don't need anything else, but would like to get back into it just to remember stuff. Thank God for AP classes though. $83 for 10 credits beats paying for 2 college courses any day.

bdawson72
12-17-2006, 10:24 PM
gr8

Hintzyboy
12-17-2006, 10:25 PM
gr8

???????????????????????/

xluben
12-17-2006, 10:31 PM
i havent done anything past calcII yet. I'm at a 2 year school atm, and the Calc3 (I believe its differential eq's) is a distance learning course. I tried taking a DL Statics course and it ******. I don't need anything else, but would like to get back into it just to remember stuff. Thank God for AP classes though. $83 for 10 credits beats paying for 2 college courses any day.

calc 3 (lin alg and diff eq) wasn't too bad for me (neither were I or II)

but calc4 (multivariable) is a b*tch! at least at my school.

calc 1-3 are all layed out by the same prof. and it's all in packets and handouts.

they were some of the easiest technical classes i've taken.

calc 4 is different, and has a very hard lab.

i ended up dropping it the first time i took it (the technology version).

i then re-took the liberal arts version over the summer (only one offered), and it was much easier.

that one class (4 credits) was over $1500!

Hintzyboy
12-17-2006, 10:39 PM
Calc I = the easiness

The Clac II portion of the Advanced placement test wasn't such a cakewalk. But it's pretty much like a pumped-up college final exam. One test determines the grade for the whole semester's worth of work. Still got like a B on the Calc II part though (Calc I was PERFECT:p: )

.::DuD3::.
12-17-2006, 10:40 PM
i hear dif q is insane.

Hintzyboy
12-17-2006, 10:42 PM
According to my Calc teacher in high school, calc 3 +4 were supposed to be easy compared to Calc II, cuz there's just so much crammed in to that class. I guess its just relative to the student though.

xluben
12-17-2006, 11:04 PM
actual grade distributions:

http://img120.imageshack.us/img120/1336/calc1wi1.jpg
http://img120.imageshack.us/img120/295/calc2cb9.jpg
http://img446.imageshack.us/img446/7084/calc3zj9.jpg
http://img142.imageshack.us/img142/3563/calc4ll5.jpg

j3bus2k3
12-18-2006, 01:31 AM
Calc II is much harder than III and IV. I'm in Diff eq this coming semester...