Design Ideas for a Wall

[sefugi 166]

Got new vehicle, well new to me and I beleive this to be what I will use for my project. Wife extremely unhappy that I want to do this but that is the way it is. She'll live & I'll be Boomin' !!

My goal in this setup is of course "LOUD" next is hairtricks and a daily ground-pounder.

My concern is port size (to small or to large) Need input on ideas on what I am putting together.

Vehicle: 2002 Isuzu Rodeo 3.2 V6

Subs: 4 SA15's

Amps: 2 Sundown 2000D's

Enclosure will be built as a wall using trim to seal it out to the B pillar.

Will be using 3/4" MDF doubled to make all sides 1.5" thick.

Calculations are using allowance for .7 woofer displacement and 1 for bracing and working around wheel wells.

Enclosure demensions overall Total gross volume=25.27'

Height: 36"

Width: 45"< May have to be a little bit wider to accomodate the subs on face of wall with a 10" wide port.

Length: 34.5"

Port size: Port will be centered @ 330"2

Height: 33"

Width: 10"

Length: 30"

My calculations give me a tuning of 34.9Hz

Leaving a Net Volume of 14.59' about 3.65' per sub.

This site shows a minimum of 276.87" needed compared to my 330 that I would be using. < This is my interest on the design!!

What I am considering above would give me 22.6" per foot. < Good/Bad for what I described that I want in my goals??

Let me know what you think. Thanks!

[emh9009 199]

i BELIEVE for hair tricks and all you want to get a ton of port area, not sure on that. I'm always getting confused when trying to figure how much to use.

Do you mean you want to first build it for numbers, then once you reach some goal retune and all for a ground pounder?

[sefugi 166]

i BELIEVE for hair tricks and all you want to get a ton of port area, not sure on that. I'm always getting confused when trying to figure how much to use.

Do you mean you want to first build it for numbers, then once you reach some goal retune and all for a ground pounder?

Not worried about #'s, just ground-pounder and hairtricks. You know something to play with! With #'s your allways trying to get the extra 10th.

[cobra93 47]

Don't know. I have nothing useful to add, but you can be damn sure I'll be tuned in for this.

[Sencheezy 689]

Pics Poor Favor

[sefugi 166]

Don't know. I have nothing useful to add, but you can be damn sure I'll be tuned in for this.

Your no help!!!! JK There will be a build log!

[sefugi 166]

Pics Poor Favor

I have no pics and I suck at using sketch programs.

[Godsmack 361]

Glad to see the 'vehicle' use debate is not limited to my house..............

J

[Kanaworm$ 292]

Your calculations have you right in the ballpark. I have only assisted on wall builds and designs. With 4K watts on tap it should be a nasty loud ground pounder.

[sefugi 166]

Glad to see the 'vehicle' use debate is not limited to my house..............

J

Yeah she's not real happy that I want to take a vehicle with only 37K and "ruin it" in her words. Yes you are not alone!

[sefugi 166]

Your calculations have you right in the ballpark. I have only assisted on wall builds and designs. With 4K watts on tap it should be a nasty loud ground pounder.

I was hoping this would get me into the game. The thought on building it with 1.5" walls is to, maybe in the future, move up to XCON or ZCON with double the power.

[onebadmonte 235]

Nothing to add, just a quick question? Why not tune lower to like 28Hz? If it's going to be playing music and demo-ing and what not I'd figure a low tune would be the way to go.

[sefugi 166]

Nothing to add, just a quick question? Why not tune lower to like 28Hz? If it's going to be playing music and demo-ing and what not I'd figure a low tune would be the way to go.

Excellent question!! This is what I need to make me think. In responce, I don't know. I know that the recomended tuning for these from Sundown is 35hz, I did in the begining of thinking this out that I would use a 32-33Hz tuning. Would that low of a tuning (28hz) be worth the extra space required for port displacement? Would it increase the goals that I have in mind? Nothing is built yet, that is why I am consulting the masses here on the forum. Thanks for the post!!

[Kanaworm$ 292]

When considering in vehicle response the 35hz tuning is nice mix. Will cover the higher notes for Metal, Rock and will be able to play the low stuff just as well. Will need to play with lpf and ssf filters to fit your listening style. The SA series is a great driver.

[Sir-Lancelot 216]

I would try and hit up JBLCamery/KCB/Dylan for a design and some ideas. Tons of experience with walls right there.

He is in FL too.

Welcome to the" ruin your truck" club. My wife says the same thing. lol

She ruined your grill, so seems fair to me to ruin your truck. lol

Thats how we do!!!!!

[sefugi 166]

When considering in vehicle response the 35hz tuning is nice mix. Will cover the higher notes for Metal, Rock and will be able to play the low stuff just as well. Will need to play with lpf and ssf filters to fit your listening style. The SA series is a great driver.

Thanks!!! The thoughts on the 35 tuning was because of the Sundown recomendation as well as with this size port the length of port gets crazy when you start going low on tuning.

[sefugi 166]

I would try and hit up JBLCamery/KCB/Dylan for a design and some ideas. Tons of experience with walls right there.

He is in FL too.

Welcome to the" ruin your truck" club. My wife says the same thing. lol

She ruined your grill, so seems fair to me to ruin your truck. lol

Thats how we do!!!!!

I did try to hit up Bromo, but he said he was not into doing walls. I'll try your suggestion.

Good point about the grill, and I was the one that had it replaced. Couldn't go all summer without grillin' out, Love my grilled sausage!!!! Wait that sounds gay!

Glad to be welcome in the "ruin your truck" club!!

[onebadmonte 235]

In a situation like this I would opt for starting at a low tuning. If it doesn't meet the goals, the port can be shortened for a higher tuning at a later date.

[sefugi 166]

In a situation like this I would opt for starting at a low tuning. If it doesn't meet the goals, the port can be shortened for a higher tuning at a later date.

I have been looking into the options of a lower tuning. Making the port shorter in a wall type setup unless I do something very creative would be a major pain!

[Quentin Jarrell 671]

Being you are looking for a specific goal take a look at this befor eyou choose a specific volume and tuning.

speaker responce and transfer function

[sefugi 166]

Being you are looking for a specific goal take a look at this befor eyou choose a specific volume and tuning.

speaker responce and transfer function

Thanks for the link! I read through the page this morning, but I'll have to read it again for the mass of information to sink into my thick skull. It was interesting that different tuning on the same enclosure volume made such a big difference.

[Duran 387]

Numbers look good, if you shrunk your port area a bit you would be able to lower tuning, I'd just find a balance in port area and tuning, definitely stick with a minimum of 280²", you can play with it a lot, it will perform well regardless of what you ultimately decide to do with it.

[sefugi 166]

Numbers look good, if you shrunk your port area a bit you would be able to lower tuning, I'd just find a balance in port area and tuning, definitely stick with a minimum of 280²", you can play with it a lot, it will perform well regardless of what you ultimately decide to do with it.

I can increase the depth of the overall enclosure to help with the port length of lowering the tuning. Woulld staying with the larger port and lowering tuining get me to better results for what my goals are?

[Duran 387]

You will be moving insane amounts of air as it is, but for the best results I would lower tuning as well as well as keeping port area

[sefugi 166]

You will be moving insane amounts of air as it is, but for the best results I would lower tuning as well as well as keeping port area

How low would you recomend without me having to use the whole rear area.