forgot to take pics last night i started it. i'll post them tonight. anyway two hyphonics 12's with a phenix gold 10 in the middle. will upgrade speakers later. i have these laying around so they'll do for now. 1000watt pyramid amp and a sony 800 watt amp. pics in a few hours. not sure how it's going to turn out

 

sounds cool

 

I have a box with three twelve in the hatch two kicker comp vr and in the middle one kicker l7

 

Mixing and matching subs is typically not recommended. Although since you have them laying around anyway, might as well give it a shot.

 

is that to much bass. i want it loud and to sound good. i was thinking about doing an l7 for the middle one. i new sony's for component speakers and i'm doing the 4th gen door panels so i'll have some there as well.

 

ya there just temporary. i'll put a matching set of three in there down the road. i still have to get my motor in thise car. been a project now for about 6 months. just now getting close to completion. i'm waiting on some things for the motor so thought i'd tackle the system and get that out of the way.

 

couple pics of what i got so far.
QUESTION: should i put cotton or foam or something in this box? does it help with sound or bass etc?

the pics are of the bottom box now i have to build the upper half and incorporate a box inside the box for the center 10' speaker. which i should be able to work on tomorrow.

 

I doubt you'll hear a difference if you don't install the 10".

Also, do you have enough air for all 3 subs with the box you are building?

 

couple of good points there, thanks. I'm not sure on air. I'm making it as big as i can and I'm going to come up as high as i can. any idea's on the air i would need to 2 12's in the main chamber and the 10 will have its own box inside the larger box. any input would be great. so you dont think an added 10 will add to it?

 

To give you an idea...those premade boxes that fit two 12" subs in our car only provide 1 cu.ft. per sub.

In terms of cone space, adding a 10" to two 12", you will not notice an audible difference.

You would have to look up the requirements for your particular subs to make sure they are in an optimal box as box requirements vary between subs.

If you put your 12's in too small a box, you'll end up with flat bass.

Two 12's in the proper box will sound fuller and have deeper bass than three subs in a small box.

 

hmm interesting. so now choices i have two hy phonics 12's 600 watts and 2 pheonix golds 600watts. two amps, one pyramid 1000watt and one sone explode 800 watt. any sugestions anyone? thanks project for the info

 

well i went with 2 10's. i wanted to make sure i had enough air movement. i made it as big as i possibly could. its a pretty tight fit. i'm going to carpet it tonight and get it installed tomorrow.

 

good looking box, but what's the little holes you've got drilled next to the sub holes? are you making a ported box?

 

ya its ported. im closer to the call out on the speaker requirement for ported then sealed. why do you ask? did i do something wrong?

 

ported boxes are very picky with their sizing; you need to make sure you're taking into account the space the ports and subs are taking up inside the box. if not, you're going to have to big spikes and dips in your frequency response

 

hey dan, thanks for the tip. i will have to check it out. i have the cubic ft requirements at home for the speakers and i know i got close but i couldnt find anything on what size ports i needed to have, so i guessed. i can always adjust those as needed after i get it hooked up. which i did last night but i havent even turned it on yet. i planned on playing with it and tunning it this weekend. its carpeted and installed now i need to get another pic. anyway thanks again i'll post how it sounds hopefully this weekend.

 

when building and spec'ing out boxes, winISD's a great tool. its free and it will help you with the basic design of your box.

you can always fill in the box with wood and cap off the holes to make it more in line with a large sealed box; you may like it better.

 

does a sealed box equal a more punchy base? it wont take much to fill the holes after i hear it and see which way is better. thanks again for the input. with the new component speakers and new head unit i'm hoping to just have an all around crisp, clear, and loud system. at 33 i find i'm more into quality of sound vs my ears bleeding lol

 

check this link out; pretty good info on some of the different box types and their pros/cons:

http://www.caraudiohelp.com/newslett...sure_types.htm

for your first few attempts (especially with the tricky shape 3rd gens use for boxes), i usually recommend going sealed. more forgiving on size, more power handling, and a pretty flat freq response. no crazy tuning required.

 

just thought id post a couple pics of the box in the car. hooking up the motor now and i will be down with this car and ready to burn some rubber

 

That box looked really big for two 10's. Did you build it to the manufactures ported box recommendations? They usually recommend a port size as well and a size for a sealed enclosure.

I prefer a sealed box for tight, punchy bass that has good response.

I also noticed that your box material looks like a form of press board. I always use 3/4" MDF when building boxes. You can actually blow a sealed box apart from sound pressure. The MDF is much denser and does not flex, that allows for a cleaner harder hitting sub.

Dont take any of the above comments the wrong way, they are just comments and potential suggestions. The install and box looks great and I am sure you are happy with it. Good job!

 

thanks super_fly, it was my first box attempt for a third gen camaro. i'm in my 30's so my music genre wont be to ear pounding i just wanted a crisp full sound. i made the box as big as possible. the manufacturer spec were 2 cubic ft per sub. I'm pretty i got close. thanks for comments.

 

Hey, I am in my 30's too. I listen to mostly rock and metal which is why I prefer a sealed box. I have done many custom boxes for friends. I used to have a garage full of wood working stuff. A table saw in the middle with a huge 8' x 8' table around it so I could cut full sheets of MDF plus loads of other stuff. In my new house I put a camaro in it so all my woodworking stuff is gone.

I found a new method of making perfect, long, strait cuts with a hand saw. I have a flat piece of steel angle iron that I clamp on either end of the cut to act as a fence. I keep light pressure with the saw against the make shift fence and that makes nearly perfect cuts. Just have a good fine tooth blade for cutting MDF. Oh and make sure you measure and take account for your blade thickness. (i.e. cut on the right side of the line)

Oh, your car is super clean. I like it. That color is pretty wild. I like how you painted the t-tops and center bar.

 

2 cubes for a sealed 10" sub

 

claustrophobic sub

 

is that bad? i have a pair of 12's laying around i could throw in there... i'm sure it will be enough for me

 

it's not bad but you could run 1 15" in that much sealed air space or 1 12" ported, 2 cf is too big for a sealed 10" it will bounce around without control

 

I would suggest that you re-measure the box's inside dimensions to see exactly how much air space you have in total.....then go from there.

Too much air will make a sub sound hollow or flat (ie less bass). Good news is you can make the box smaller by adding wood to the bottom of the inside of the box.

 

thanks for the input guys. the box is ported thought does that make it any better? and i went out and looked at the paper that came with the subs.. they require .97. 2.... .97 that a pretty close guess lolol i'll measure the inside deminsions again today and see what i have .. now that i'm kinda worried lol

 

.97 cubic feet is a lot smaller then 2 cubic feet. I am assuming you dont have a panel seperating the subs? Each sub needs its own air space to perform its best. If you are running both subs in an open box and no divider, they are not going to perform well like was stated above. It is too much air space for them.

 

holy poop i didnt think puting a pair of speakers in the car would require this much thought lol i havent turned them on yet, when i do if they sound like crap i'll pull the box and do some mods to it.

 

It may sound fine the way it is, but if you build the proper enclosures for thsoe speakers, they will sound much better.

At this point, like you said, might as well run what you got and see if it is too your liking.