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Independence83m
12-14-2009, 01:18 PM
3.12 cubic ft
32 hz sloted port
and i got 33 inches wide and 2 10's are going in?

BassMechkanic
12-14-2009, 02:09 PM
demensions? size you have to work with?

DonH
12-14-2009, 02:14 PM
ygpm bro design is ready and waiting

SicAudio
12-14-2009, 02:15 PM
dur

Independence83m
12-14-2009, 04:13 PM
its a blazer and i have 33 inches wide till my power wire comes out of the floorboard and the height 15 inches will work and depth can be whatever it needs to be. oh yeah i want to use 3/4 inch MDF

i've included the displacement of the subs already in the box vol 3.12 cu ft

the tuning feq is 32 Hz and the F3 is 29Hz if that helps and i appreciate the help

marcotheclepto
12-14-2009, 10:49 PM
its a blazer and i have 33 inches wide till my power wire comes out of the floorboard and the height 15 inches will work and depth can be whatever it needs to be. oh yeah i want to use 3/4 inch MDF

i've included the displacement of the subs already in the box vol 3.12 cu ft

the tuning feq is 32 Hz and the F3 is 29Hz if that helps and i appreciate the help

for tuning purposes need to know the NET volume of enclosure. so what is your actual goal for volume? i can get a design done real quick.

Independence83m
12-15-2009, 08:27 AM
2.78 cu ft net volume and SPL, my boy is always tellin me how his stuff hit harder. I need to stop that!!!!

marcotheclepto
12-15-2009, 09:07 AM
2.78 cu ft net volume and SPL, my boy is always tellin me how his stuff hit harder. I need to stop that!!!!

32 is a low tuning for spl..? you just want it to be a loud daily?

Have you tested to find what frequencies are loudest in your vehicle? most vehicles have a frequency usually in the 40s of 50s that they get a peak in tuning right below this makes your box peak around the same frequency. smaller sized box larger port area and lotsa power also help.

spltuscon
12-15-2009, 09:42 AM
For a Blazer you want subs up on the passenger side and port facing driver side. They peak right around 50 hz, so tuning to 32 is too low to maximize their potential.

Independence83m
12-15-2009, 10:31 AM
theres a few recomedations on the data sheet, how about:

gross volume-2 cu ft + .12 displacement.
net volume - 1.78 cu ft + .12 displacement?
feq tuning - 42 Hz
F3 - 39 Hz

this is the loudest on the data sheet.

edit: if you wondering they're MTX thunder6000's

spltuscon
12-15-2009, 01:14 PM
Optimal volume of enclosure will depend on how much power you're using, but tuning at 42 hz would work much better for SPL while still keeping it usable for daily driving.

In general :more power=smaller box (sub will mechanically handle more power) while less power=bigger box for efficiency

Independence83m
12-15-2009, 01:35 PM
i'm running a 2 ohm load of 410 rms watts to two 4 ohms subs of 250 watts (a piece) rms.

spltuscon
12-15-2009, 03:17 PM
Do you mean you're running a total of 410w or that much to each?

SicAudio
12-15-2009, 03:24 PM
wow 410 watts lol we push 500 + to each of the 6k series and 400-500 on the 55 series they will take a beating dude.

Independence83m
12-16-2009, 01:19 AM
410 total and the subs say they are only 250 a piece so why would you run that much to a sub like that?

SicAudio
12-16-2009, 01:22 AM
because they take it daily just fine lol and they sound an asston better on that much.

spltuscon
12-16-2009, 11:28 AM
With that small amount of power you should definitely go with a big box for them to make the best of it.

Power rating is very misunderstood by most people. The manufacturer gives it a rating based on long term thermal reliability. In most cases you can run significantly more to any speaker for short periods at a time (music is dynamic) without damage.

Independence83m
12-17-2009, 11:25 AM
i got a box ya'll, thanks for the help. I just put in a box i had made for another sub, and it wangs, but sooner or later i'm going to have to build a box for my ***. Look out for me when i do and i need some help. Thanks again.