Sub Box

[nickhjort]

So here's my Sub Box. The start of it anyway. It's my first Fiberglass project. I've never done anything with it,
and it's hard as shit. I thought it would be easier, but I think I'm doing ok. Check it out!

Here's the board I read to help out...
http://www.mp3car.com/vbulletin/fabrication/76328-starting-fiberglass-sub-box.html

[punch]

nice start... cover the bumper also to protect it...

you going to fill this with water to find the volume of it??? what sub you using etc????

also this should be in the audio section...

[punch]

umm you went over the spare tire???

so to access the spare the whole box will have to be removed??? pain in the ass that will be...

[Black Yaris]

nice start... cover the bumper also to protect it...

you going to fill this with water to find the volume of it??? what sub you using etc????

also this should be in the audio section...

Thanks for the suggestion, it was noticed, and action was taken :biggrin:

But that box does look like it would be a pain in the ass if you ever had to access the spare... I would a)reloate the spare or b) ditch the spare because if you put it under that box it is as good as dead weight

[leasaunce]

nicee work! cant wait to see the final!

why dont you put the sub inside the spare alloy? (i've seen several people done this before)

[Turbo&Auto]

how many subs and what size??? Thats a decent sized box there.....

[nickhjort]

Thanks for all the input. There will be two ESA (circuit City brand) 12 inchers in there for now. A 760 watt Pioneer amp to go with my Pioneer deck. And later on when I save up some money I will get two Pioneer 12's. And I think I can make it easier to take out in case I need the spare. Maybe cutting it into two separate boxes. ?? We'll see :)

PS Thanks for moving this thread. Right as I hit the post button I was like "shit...oh well"

[johnnyfive]

it will be easier th take out and access the spare, than driving on a flat back to your house to get it :)

[nickhjort]

So I just took out the box, and can I say...IT WAS A PAIN IN THE ASS!! But not because of the shape or anything.
I taped down the tinfoil so it wouldn't blow in the wind. But when it's done it will just lift, turn, and then come right out.
SWEET! it's just the way I wanted it to work out. Here's pics...

[-m-]

You are going to add some more layers though right? Its looking awefully thin there for a couple of subs. Project is looking good though:thumbsup:

[Turbo&Auto]

Make sure thats ported when youre done, that box is huge man!!!

[-m-]

Just because its big don't mean it needs to be ported :wink:

[Turbo&Auto]

No really......But to be effective a ported box will be needed with this much air volume ;)

You cant run a lot of power on those subs and leave it sealed, it will not hit low and will burn up the voice coils for sure.

[Indianspringsaz]

No really......But to be effective a ported box will be needed with this much air volume ;)

You cant run a lot of power on those subs and leave it sealed, it will not hit low and will burn up the voice coils for sure.

Not true, however, the box should be built with the speaker manufactures recommendation in mind.:thumbsup:

[Turbo&Auto]

I'm a stereo noob dont mind me, never built custom stereos in my life :rollseyes:

[ChinoCharles]

Lesson number one T&A: on a car forum, everyone is an expert. How could you forget? :tongue:

[Turbo&Auto]

for real man......

[SiliconRane]

I am not an expert, I am GOD (Not Really)

[nickhjort]

Yeah there will be 4 or 5 more layers. and also 6 or 7 layers on the top part too. And I am thinking of porting them But then I might also eliminate some of the space in the middle when I put my amp in. Then it will be two sepparate boxes and each can be big enough for each speaker. We'll see.

[Turbo&Auto]

square port in between ftw!!!

[-m-]

square port in between ftw!!!


Really now...do you know if the subs are even suitable for porting? Better yet..since your on the porting kick what should he be tunning them to? Larger sealed enclosure will reduce the max power he throws to it but will also gain him a bit in the lower octaves. Depending on the sub it could very well be too little airspace for a vented enclosure (once you allow for port displacement within the enclosure) or even still :shock: it could be even too small for a pair sealed. The port in the middle is less than ideal as well. Doesn't appear to be enough depth in there to route a decently sized port in there. I realize that you may be half kidding but I figure I may as well pad my post count while I'm here:cool: .

[Indianspringsaz]

I'm a stereo noob dont mind me, never built custom stereos in my life :rollseyes:

Thats OK man, I wont hold it against you, noob...:cry:

[sdmf]

ok question, most subs have their own recommended cu enclosure, do the esa's and pioneers have the exact same recommended cubic footage?, i made my box to the mb quart spec. it was recommended sealed so i was able to save some space since i didnt have to port it. at least you got the idea, for hatchbacks tis better if your subs fire upward. at least it doesnt push against your hatchdoor. i have put little feet on the box to reduce vibration and its a nice spot for keeping the amps. it wont sound right if the box is the wrong size.

http://www.circuitjerks.com/photos/Elmhurst%20Toyota%202007/ToWeb/2007ET11.jpg

[Nigal]

Damn I bet a trip to the groceries is a bitch.

[-m-]

Damn I bet a trip to the groceries is a bitch.


I managed to squeeze near 7 cubes and 2 15's in one of my old cars and still had room in the hatch for groceries or my mountain bike....

http://memimage.cardomain.net/member_images/6/web/474000-474999/474070_28_full.jpg


As a bonus I didn't have to deal with back seat drivers either:biggrin:

http://memimage.cardomain.net/member_images/6/web/474000-474999/474070_23_full.jpg

[-m-]

for hatchbacks tis better if your subs fire upward.


Actualy you almost always get more volume from the subs facing the hatch. Not every single case (I can think of one or two examples) but but damn close. That being said...my latest enclosure for my Suzuki faces up as well:biggrin:


EDIT: I should qualify that statement. If your just listening to music and not competing in the db lanes arguably you can mount them any way you'd like to. Facing them to the back tends to give you more volume because the hatch reinforces the sound (much in the same way home speakers tend to sound louder and/or better in the corners of the room). It also helps cancel out 2nd and 3rd order harmonics making the soub sound a bit cleaner.
http://memimage.cardomain.net/member_images/4/web/2380000-2380999/2380283_40_full.jpg

[punch]

Actualy you almost always get more volume from the subs facing the hatch. Not every single case (I can think of one or two examples) but but damn close. That being said...my latest enclosure for my Suzuki faces up as well:biggrin:


EDIT: I should qualify that statement. If your just listening to music and not competing in the db lanes arguably you can mount them any way you'd like to. Facing them to the back tends to give you more volume because the hatch reinforces the sound (much in the same way home speakers tend to sound louder and/or better in the corners of the room). It also helps cancel out 2nd and 3rd order harmonics making the soub sound a bit cleaner.
http://memimage.cardomain.net/member_images/4/web/2380000-2380999/2380283_40_full.jpg


you really have no clue what your talking about do you???

its a proven fact, in a hatchback type vehicle aim the subs up, in a trunk aim the sub towards the rear of the car. its been proven scientifically... BUT, never mind that shit, aim them the way they sound best to yourself...I have mine aimed towards the rear of my trunk...

[-m-]

its been proven scientifically...


Show me that. I'm interested.

[jdium]

you really have no clue what your talking about do you???

its a proven fact, in a hatchback type vehicle aim the subs up, in a trunk aim the sub towards the rear of the car. its been proven scientifically...

Can I see that proof? http://www.hostboard.com/ubb/smilies/expressive/tapedshut.gif

[sdmf]

Damn I bet a trip to the groceries is a bitch.

nah, i got the whole back seat, besides, i installed keyless entry on my doors, but i still need a key for the hatch, so less convienient

[Turbo&Auto]

Either facing up or out towards the hatch both have good results in a hatchback car. I've done it both ways and was never disappointed.

http://www.nicksturbomatrix.com/yarissubs11.jpg
One of my noobish projects.....

[myt]

I really like that setup Turbo, I was thinking of doing something of the sort, I just lack the know-how. :bonk: Aren't you afraid of your cargo hitting the woofers?

[smokinyaris]

Either facing up or out towards the hatch both have good results in a hatchback car. I've done it both ways and was never disappointed.

http://www.nicksturbomatrix.com/yarissubs11.jpg
One of my noobish projects.....




where did you get that panel........................sweet

[yrsdrgn]

where did you get that panel........................sweet


That's a one off panel that's not going to be reproduced sadly ><

[myt]

Maybe I am a retard, what is one off

[cali yaris]

one off = one of a kind, not produced in quantity.

[punch]

http://www.teamrocs.com/technical/pages/aiming.htm

one of many sites that mention this... I personally couldn't tell the difference in my sedan...

[-m-]

That says nothing of a hatchback. But since were gonna put up Eddie Runner's text as scientific proof...here's another one by him with many vehicles. Every vehicle showed better response and volume with the sub faced to the rear.

http://www.installer.com/tech/aiming2.html

[nickhjort]

Well Thanks for all the arguing and testing and fun stuff, but I don't really care about sound waves and perfectly mounting them in the right direction. I just want it to look cool and I want my music to have that little extra bass. I don't crank it up and I don't compete, so it's all good. I'll post more pictures here when I get this thing done. Stupid rain won't let up and I can't work on it in the house. So it might take a bit.

[-m-]

Its not so much a right and wrong direction. As I said...I've mounted many subs facing upwards and the results were great. What really matters in the end though is whether or not your happy with the sound. Rain sucks to work in but on the bright side of things...you have warm weather year round to get your fiberglass projects done :thumbup:

[nickhjort]

For anyone still reading this thread ^_^ .V..

Just some updated pics on this hella cool Vitz Sub Box.
It's taking a long time cause I have to work on it in between work and sleep and stuff, but it's all worth it.
I put glue on the fabric today at work and it's coming along awesomely.
I'll post more pics when I start fiberglassing the top section, And of course when it's all done.

[nickhjort]

Here is what it is going to look like when all is said and done. I still have more layers to go on top, and one final layer to go all the way around to make it a little more rigid as one piece. The amp is going to go under the passenger seat. All the wires will be hidden of course. Can't wait to hear it! Then I shall cover it with some kind of fabric (whatever I use to redo my door panels) Anyway just thought I'd share the progress. Keep it real.

[staticorex]

Wow. Looks nice. But cover up that l plate in the pic. :p

[pennyracer]

did you finish that box ? like to see it painted my box is for sale loaded with two 10" arc subs $500.00 i want to build one with 4 10" subs this time
if anyone is interested



http://i214.photobucket.com/albums/cc74/boydstir2291/DSCF0017.jpg


http://i214.photobucket.com/albums/cc74/boydstir2291/DSCF0018.jpg

[talnlnky]

No really......But to be effective a ported box will be needed with this much air volume ;)

You cant run a lot of power on those subs and leave it sealed, it will not hit low and will burn up the voice coils for sure.
*Trying hard not to be a jerk*
Please stop talking now, you don't know what you're saying.

effective... efficient... two completely different words... Most sealed boxes play lower than ported boxes cause most people use high tuned ported boxes. Low tunes boxes have to be huge... I'd bet $100 that the subs he's rolling in wouldn't fit properly in that size box unless tuned above 35hz.. maybe even above 40hz.

Also... no speaker is efficient... if you're lucky, a speaker will be 1% efficient.

Also... sealed boxes give a more sq oriented roll-off (frequency response) than 99% of all ported boxes, once again cause nobody seems to use properly designed ported boxes.

I say go sealed... and i'm a HUGE ported box lover.



EDIT: Oh yeah.... now comes the fun part... LET THE SANDING BEGIN! You gotta sand that thing... it'll make it look good. Sand it until it is as smooth as you can get it with 220-400grit. You can speed up the job by using body filler (rage gold works good). Once you get done sanding... do 2-3coats of primer... sanding after every two coats... and then start your REAL coats of paint... finish it up by waxing the box. It'll make it sooo much nicer... thats what I did with the box in my avatar (for the paint job)

[nickhjort]

I was just informed that I had no finished pics of this project on this thread anymore because of that F#$%ing Hack. So here they are...
http://i236.photobucket.com/albums/ff200/nickhjort/CIMG3860.jpg
http://i236.photobucket.com/albums/ff200/nickhjort/CIMG3863.jpg
http://i236.photobucket.com/albums/ff200/nickhjort/CIMG3875.jpg
http://i236.photobucket.com/albums/ff200/nickhjort/CIMG3876.jpg
http://i236.photobucket.com/albums/ff200/nickhjort/CIMG3877.jpg
http://i236.photobucket.com/albums/ff200/nickhjort/CIMG3878.jpg
http://i236.photobucket.com/albums/ff200/nickhjort/CIMG3880.jpg

PS. I am trying to sell this thing (with amp and speakers) locally if possible (150 miles or so I am willing to drive and drop it off) unless someone wants to deal with shipping. I am looking for 400 for the whole package (box, speakers ESA 12" and amp 760 watt pioneer) This thing hits hard even with my crappy no name brand speakers. It will fit in an 07 Hatchback with 60/40 back seats. Not sure whether it will fit the one-piece back seat version? Anyone know?

[zestia]

The final product looks good. Why go through all of that effort just to sell the whole system??

[nickhjort]

Well I've been riding with this system for about a year and a half and need the money now. Plus I'd like to make a new one a little bit differently some time in the future. Let me know if someone you know wants to buy it :)

[zestia]

I will see what I can do. O and sweet R1