4 12'' or 1 18'' which will be louder

[matrxx dude 5,000+ posts]

you have 2000 inches of cone area in 4 twelves,you got 1210 in a 18,the 4 12's will do more on the meter.

 

[dman4486 5,000+ posts]

you have 2000 inches of cone area in 4 twelves,you got 1240 in a 18,the 4 12's will do more on the meter.

there is more involved than just cone area:fyi:

 

[Joseph M 10+ year member]

there is more involved than just cone area:fyi:

thats i thought. i seen walls of 15' not put out anything good, but 2 12'' barely below them

 

[matrxx dude 5,000+ posts]

more cone area IN THE RIGHT BOX with 3k will do better than less cone area in a good box.

 

[matrxx dude 5,000+ posts]

ive been there and done and tried both

 

[skadude016 5,000+ posts]

what kind of car do you have your 18'' MT in???

96 Jeep Grand Cherokee

 

[skadude016 5,000+ posts]

should u say that about 2 15s running daily to? or no? i was thinkin 2 15s or a single 18..got like 3k watts..

the 15's will have more cone area than a single 18. I just perfer single sub setups. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[matrxx dude 5,000+ posts]

daily,either 1 with proper enclosure and power

 

[Joseph M 10+ year member]

so like a dd 9917 daily to a 3000d, and then burp the type R's?

 

[MisterGrubbs 5,000+ posts]

My vote is for 4 15" Type R's on the 3000D @ .5 //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

That's just me though

Four 12's vs one 18 - I'd go with the 18 just for simplicity sakes, and it will still get plenty loud believe me.

 

[Joseph M 10+ year member]

ya, 15 would be nice, but i got 12''

 

[Joseph M 10+ year member]

Conslusion: 1 18'' daily and 4 12'' burped.... start a build log once i get the other 2 12'' or 18'' which ever comes first

 

[TheFiverMan 10+ year member]

are u competing?

 

[SHiZNiLTi 10+ year member]

Okay guys, i was either going to go with my budget build, since i already have 2, 12'' Type R's and just buy two more since these are so cheap. But i seen a video of a guy with a 18'' moving an aluminum roof so i was wondering which would be louder??? i have a sundown saz 3000d so power is not an issue, but 3k to one 18 or i drop it down to .5 ohm and push 4 12'' and give them 1k apiece,...what do you think!?

HAHA, I take it you watched my 18" Fi BTL "Building Flex" video //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

When I made that vid I only had 2000rms on it. I upgraded my Alt with a 260amp irragi and did another run of 1/0 gauge then installed a couple Optima G31 battery's to feed a Rockford T30001.bd that was giving the BTL around the same power that you have. You should of seen how much louder that aluminum roof was vibrating when I went back to the same spot I made the original video. It actually hurt to be in the car.

My box was 37" wide x 27" Deep x 19" Tall, about 6.7 or so cuft.

The "L" port was 5.75" wide x 17.5" tall giving me 100sq.in. of port.

The port went back 21" and the 2nd piece of the "L" port was 6 long".

This tuned the box to about 32hz.

I did a double baffel with thick support dowls going from top to bottom, with this setup it will get VERY LOUD...

 

[audioholic 5,000+ posts]

I did a double baffel with thick support dowls going from top to bottom, with this setup it will get VERY LOUD...

Next time, run your bracing rods the other directions. Since you had a vertical slot port, AND double baffles, the axis that you braced (top to bottom panels) was actually already your strongest axis. The braces should be run to the front/back panels, and side/side panels.
Nice blazer btw.

there is more involved than just cone area:fyi:

Assuming we are comparing apples to apples, the four 12's setup would pretty much have all the advantages. more cone area (already discussed), more motors to soak up wattage AND minimize power compression (and increase longevity). More displacement potential AND the ability to use more wattage... can only equal more output potential... sealed OR ported.