Bigger or smaller

[afrakes]

When overpowering a sub like I plan to do ( fully loaded fi q 15" on 2500 rms), should the box be built slightly bigger or smaller than the manufactures reccommended specs? I have heard both but my gut tells me smaller would be better.

[revoracing247]

smaller from what i've heard

edit: i guess i should explain more. larger amounts of air are easier to compress then smaller amounts of air (if you're compressing it not proportionately). and so if you have a box with a smaller airspace the sub is gonna feel a stiffer "acoustical suspension" then it would with a larger airspace. and so having a smaller airspace keeps the sub more in check when over powering it cause the smaller airspace will make it harder for the sub to move. (hopefully that makes sense)

[poorfish88]

Smaller is the way to go.

[john253a]

If you need to ask

Then it's something you shouldn't be doing

And a fully loaded fiQ is designed for a sealed box, not ported, so buy fully do you mean fully?

And you'll more then likley get more output from a ported 12 on rated then a sealed 15 on more

[afrakes]

If you need to ask

Then it's something you shouldn't be doing

And a fully loaded fiQ is designed for a sealed box, not ported, so buy fully do you mean fully?

And you'll more then likley get more output from a ported 12 on rated then a sealed 15 on more

1. I don't appreciate ur attitude and trying to make me feel like a dumb ass. This isn't my first rodeo.

2. A fully loaded fiQ 15 is not designed for a sealed box only. Fully loaded does not mean high qts.qts is what decides if a sub should be ported or sealed.

3. I have a ported 12 now. I want a ported 15 and I know the Q's can handle way more than 1500 watts (rated rms power), especially with the cooling package and other options applied.

Not trying to be a dick, but I asked a simple question. No need to treat me like a child for trying to learn.

[john253a]

well you are half right

full loaded means you took all the options

hence me saying

"And a fully loaded fiQ is designed for a sealed box, not ported, so buy fully do you mean fully?"

so it is not full loaded you just have all options except high qts

and i stand by the words if you need to ask it is something you shouldn't be doing

as for being a dick there was no attitude in my response, i even asked the question as to full loaded,

so yes you are being a dick, because you still didn't answer my question, but by your "attitude" i can safely assume you ddnt take the high qts option

"but I asked a simple question. No need to treat me like a child for trying to learn."

if it was such a simple question would a child not no the answer?

[CodyHendo]

smaller for sure. I'm a newb, but thats all I've ever heard.

[Tecomah]

Smaller for more power larger for less.

Edit: put them backwards

[goldeneye4564]

built a box for a fi q 15 for my buddy it is around 2.8 cu ft because it is installed in a very tight spot.

it is tuned low and gets nasty on a db drive 2000.1