4th order bandpass, wheel well design :) (design inside)

[Wkbdkid 10+ year member]

with the sub firing into that chamber an with the small opening, wouldnt that make it seem like another port making it a 6th order? Or is it not big enough to be a port? Hope that makes sense.

 

[Immacomputer 10+ year member]

That's not a design; it's a drawing. There is a huge difference between the two.

 

[ultimate157 5,000+ posts]

however, mine already has a 11inch diameter hole in it from a stock subwoofer, so I could use a rectangle port going through it, but that would just look weird.

So make a beauty panel to cover up the rest, and paint the port black.

 

[its_bacon12 10+ year member]

that extended piece of the box going up, changing from that rectangular shape to the tube will cause severe audible turbulence. the tuning may be ok but i cant see how it would sound good regardless

 

[IamDeMan 5,000+ posts]

if its the same port area, and is lots of port area (which it is, a 6inch port for a single 12inch driver) I dont think there will be chuffing...
the other option is to make the round part bigger than 6inches, 8inches maybe, so its no longer an extension of the tuned port //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Flare it to the full 11" that the hole in the rear deck is. Just my .02.

 

[IamDeMan 5,000+ posts]

that extended piece of the box going up, changing from that rectangular shape to the tube will cause severe audible turbulence. the tuning may be ok but i cant see how it would sound good regardless

With the area I doubt chuffing would be heard.

 

[80INCHES 5,000+ posts]

12inch... and why less complex?
edit: hang on! thats not complex anyway!

its just a box, with the bottom extended into the spare tyre well using fibreglass, a divider down the middle somewhere, and an external slot port.

if its 4 1 12 u can draw something up thats alot less complex than that...u wont have to use fiberglass

80

 

[TWOJZ]

if its 4 1 12 u can draw something up thats alot less complex than that...u wont have to use fiberglass
80

and I wont have any trunk space left either.

 

[TWOJZ]

With the area I doubt chuffing would be heard.

i dont think it will cause any problems actually...

with the proposed size port, the maximum port velocity, with 1500watts to the sub is only 18m/s...

 

[80INCHES 5,000+ posts]

and I wont have any trunk space left either.

yes u will

80

 

[TWOJZ]

yes u will
80

no, I won't