double 12 inch subwooofer box

[400 dollar yaris]

i was just wondering if anyone has put two twelve inch subs in the same box in a yaris sedan. if so, what are the demensions of your box? :help:

[sickpuppy1]

Depends if you are doing a ported or sealed box. Sealed box gives better sound quality , but less output unless you up the wattage alot.

[sickpuppy1]

But I have an 8" and it thumps good. Although I wish I had a 12 at time to hit the very lowest notes well.

[400 dollar yaris]

im building the box myself and im not very experienced. i think im going to do a sealed box. 12 inch subwoofers should have at least a 1.5 cubic feet of air right? so i need a design with about three cubic feet of air. so i was thinking 14 x 28 x 14.

[sickpuppy1]

Heres one place to start , but I'm sure there are many more. I also heard that silicone sealant is not the best to use because the fumes can jack with cone?

[TOLMACH]

lots of 12 inch subs are OK with 1 cubic foot per sub (28.3 litres).. you can try 2 cubic feet for two

What subs do you plan to use?

[sqcomp]

Here's something to think about...

Sealed enclosures are the most forgiving with variance of construction. They give the best overall performance with frequency response vs output.

Now, what subs are you using? IDC what it is, I just want to find you exact measurements for a baseline so we can get creative.

[vten]

or you can use the freeair subs to save your trunk

[400 dollar yaris]

http://www.ebay.com/itm/PAIR-12-600W-CAR-AUDIO-SUBWOOFERS-SUB-SUBS-WOOFERS-FREE-TWEETERS-/270860887974?pt=Car_Subwoofers_Enclosures&hash=item3f109127a6

these are the subs im planning on putting in the yaris

[sickpuppy1]

Really? Have you bought them yet? (hoping not)

[vten]

Lol ... I would save the Moolah and get a better one ..
Just my 02 cents

[400 dollar yaris]

ya im getting them for christmas lol. they were cheap and they cant be that bad. lol. i think if i do the box right they will be fine. its not like im trying to win a speaker contest. i think they will sound good .:cool:

[dawin2122]

i BUY THIS IS FREE SHIPPING GREAT SUPPORT FROM THE SITE AND IN A NO BIG BOX I USED ONLY ONE AND THIS SUB IS AWESOME AND THE PRICE IS GREAT WITH ONE OF THIS YOU DONT NEED MORE BELEIVE ME

http://www.crutchfield.com/p_575R2D212/Rockford-Fosgate-R2D2-12.html?search=r2d2

[TOLMACH]

ya im getting them for christmas lol. they were cheap and they cant be that bad. lol. i think if i do the box right they will be fine. its not like im trying to win a speaker contest. i think they will sound good .:cool:

those speakers look quite good in terms of the build quality.. I am a bit concerned that it is impossible to find specs (actually tried to find them).. there is still a chance they would sound ok in a closed box

[400 dollar yaris]

i didnt know that you could use plywood for speaker boxes ? does it work well? or should i use mdf? dont the specs come in the box with the sub?

[dawin2122]

YES WORKS GREAT FOR ME

[TOLMACH]

i didnt know that you could use plywood for speaker boxes ? does it work well? or should i use mdf? dont the specs come in the box with the sub?

yes, you can use plywood.. it is better in terms of weight (most (hardwood) plywood weights less than mdf).. some people believe subs sound better in mdf cabinets .. plywood still works OK

btw, why don't you want to buy the finished cabinet ? standard enclosures are quite cheap

yes, normally subs are accompanied by the specs.. this one seems to be the "ultimate no-name" type.. I would not be surprised if no specs are found in the box.. you may try to contact the seller on this

[400 dollar yaris]

are you using the stock head unit or did you change it?

[dawin2122]

are you using the stock head unit or did you change it?

IF THE QUESTION IS FOR ME NO THIS IS MY HEAD UNIT

[400 dollar yaris]

when you removed the stock head unit did you happen to see any of the hook up ports needed for an amp/subs? also, im still stuck on what materials to use? i have plywood or i could go buy some mdf. question is.. is it worth buying particle board over plywood that i already have in the garage?

[dawin2122]

ok if you got plywood of 3/4 inches use this plywood is my recomendation sonds good for me and i post photos of my oem head unit

[TOLMACH]

you gonna need the hi-low level signal converter if you plan to use the stock HU

[dawin2122]

you gonna need the hi-low level signal converter if you plan to use the stock HU

yep something like that

http://www.ebay.com/itm/HIGH-LOW-CONVERTER-GAIN-CONTROL-HI-LO-RCA-LINE-AMP-/270853400553?pt=LH_DefaultDomain_0&hash=item3f101ee7e9

[400 dollar yaris]

ok cool so what did you use to seal your box? liquid nails?

[TOLMACH]

you can use pretty much everything that is available to you

[400 dollar yaris]

so the more air tight the better the box. correct?

[TOLMACH]

so the more air tight the better the box. correct?

the box/cabinet should be rigid and strong.. and yes.. no major air leaks / airtight overall .. I normally leave a small hole somewhere .. (temperature / pressure inside and outside the box issue)

[dawin2122]

ok cool so what did you use to seal your box? liquid nails?

ok i use a very strong wood glue but liquid nails is good to and screws and then for the corners inside the box caulking i hope this helps

[400 dollar yaris]

the box/cabinet should be rigid and strong.. and yes.. no major air leaks / airtight overall .. I normally leave a small hole somewhere .. (temperature / pressure inside and outside the box issue)

how big of a hole ? if its to big couldnt it mess up the speakers?

[TOLMACH]

Sure it can.. just a nice small nice hole like 3 mm in diameter

[400 dollar yaris]

and that should be small enough to not harm the speakers?

[400 dollar yaris]

does the box have to have divided chambers inside the box? or can the two woofers just share the one compartment?

[dawin2122]

divided

[400 dollar yaris]

ok so ive decided on this amp but i was wondering if the alternator can handle this much power anyone know the alternator ampage? or do you know if it will be able to power the amp. http://www.walmart.com/ip/BOSS-Audio-R1100M-RIOT-Series-1100W-Mosfet-Power-Monoblock-Amplifier/15780045