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Need 4th Order Design help


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Well i need help designing a new box for the sub in my signature. I have been reading up on bandpasses and am pretty sure thats the route i want to go, and from what i've read i think i want a box that has a 2:1 (Ported:Sealed) and tuning should be mid 40s.

My goals are to smash lows (low 30s) and still be able to get loud, maybe get it metered. So does anyone have any help? I have around 3-4 cubes to play with, and need some more help on total port area, total size for the chambers, and maybe port placement/type.

Thanks all

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most people like slot ports cause it looks cleaner. but i would suggest building it with round ports so you can figure out your exact tuning and then make another box with the preffered slot port tuning.

i see your sub is a level 4. but is it a 12 or 15?

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most people like slot ports cause it looks cleaner. but i would suggest building it with round ports so you can figure out your exact tuning and then make another box with the preffered slot port tuning.

i see your sub is a level 4. but is it a 12 or 15?

it's a 10..

c'mon now, if i was shooting an 8 year old, it wouldnt be MY 8 year old.

i recently got a Pyle PL1590BL and i was building an enclosure for it tuned to 25 hz. i didn't have any tools to cut a circle so i hit it with a big hammer.

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PM dwright27. He's really good with bandpass boxes. Im pretty sure Ray is pretty damn good too

On 5/8/2011 at 7:38 PM, Kranny said:
On 5/8/2011 at 7:35 PM, 'Maxim' said:

It hurts me inside when I read stuff like this and remember you're 15

LMFAO so true

:blush:

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Id say .375 - .425 sealed and what ever size ported you want.

That small?? damn, i was thinking maybe around 0.6 cubic feet per sub, but you know way more than me :drinks:

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So between .6-.75 sealed, would that mean 1.2-1.5 ported, and what kind of tune would i be looking at for the ported side?

Also would an aero work?? I've heard that 4th orders need lots of port area (20 sq/in per cube), is that also why people choose slot ports?

Thirdly, what kind of tuning would i be looking at?

1998 Ford Ranger 4x4 4.0

Pioneer 3200UB Head Unit

AQ1200D

AQ HDC3 18 Copper Coils

6 Cubes tuned to 35 Hz (Temporary)

Knu 1/0, 2/0 Welding

Treo SSX100.b

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So between .6-.75 sealed, would that mean 1.2-1.5 ported, and what kind of tune would i be looking at for the ported side?

Also would an aero work?? I've heard that 4th orders need lots of port area (20 sq/in per cube), is that also why people choose slot

ports?

Thirdly, what kind of tuning would i be looking at?

I tend to stuck between 11 - 16 square inches per cube.

.6 - .75 sealed, 1.2 - 1.5 ported, after displacements. 43 - 45 hz tune. Aeros work, I just prefer slot

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So between .6-.75 sealed, would that mean 1.2-1.5 ported, and what kind of tune would i be looking at for the ported side?

Also would an aero work?? I've heard that 4th orders need lots of port area (20 sq/in per cube), is that also why people choose slot

ports?

Thirdly, what kind of tuning would i be looking at?

I tend to stuck between 11 - 16 square inches per cube.

.6 - .75 sealed, 1.2 - 1.5 ported, after displacements. 43 - 45 hz tune. Aeros work, I just prefer slot

ahh ok, well yeah its hard to get 11-16 per cube using aeros, but i've heard that port placement matters a lot in fourth order, could you elaborate on this?? like does it matter if sub up/ port side, or sub side/ port up?

1998 Ford Ranger 4x4 4.0

Pioneer 3200UB Head Unit

AQ1200D

AQ HDC3 18 Copper Coils

6 Cubes tuned to 35 Hz (Temporary)

Knu 1/0, 2/0 Welding

Treo SSX100.b

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