wanting design for 2 HDS315s in bandpass box

[j4tk]

So Ive never made a design, or my own box, but was wondering of anyone could help me out. I need a design or rendering and cut sheet for a 3:1 4th order bandpass tuned to 47-48hz.

Vehicle : Mitsubishi Montero

Location in the vehicle: Trunk

Space available: Length:3' Width:3' Height:2' (Can go larger if needed.)

Subwoofer make and model: Soundqubed HDS315

Subwoofer Size: 15"

Number of Subwoofers: 2

Tuning Freq (Hz): 47-48hz

Click to read more...

 

[Notloud00 10+ year member]

Audioque subs dont like 4th orders. You would be better off with a regular ported box. Like 7.5 - 8 cubes tuned to 38 hz with 17" of port per cube. Sub up port back, leave around 3/4th port width from back of hatch.

 

[j4tk]

Well, some guy said it would be better, because I have about 18 cubes to work with.

 

[mlstrass 5,000+ posts]

Be the first to try it and see how they work....

 

[Beatin' 10+ year member]

I modeled these subs in winisd and the results looked good.

2 cubes ported at 48hz, 3 cubes sealed. Group delay is one hump with the peak being 16ms between 37-50hz.

 

[j4tk]

I modeled these subs in winisd and the results looked good.
2 cubes ported at 48hz' date=' 3 cubes sealed. Group delay is one hump with the peak being 16ms between 37-50hz.[/quote']

Is this the whole box? the 5 cubes totoal? or is that per sub?

And could you help me with the design?

 

[Beatin' 10+ year member]

Is this the whole box? the 5 cubes totoal? or is that per sub?And could you help me with the design?

......per sub

and I'm not experienced with box building.

 

[j4tk]

......per sub

and I'm not experienced with box building.

Oh, that's ok. Thanks. Do you know anyone who ould help me?

 

[dbjunior 10+ year member]

It funny people just repeat things they have heard about subs without knowing anything about them. The hdc3 are not 4th friendly but the HDS3 is. I can try to come up with a box design for you but I don't do renderings or cut sheets just overall dimensions and port sizing.

 

[Notloud00 10+ year member]

I modeled these subs in winisd and the results looked good.
2 cubes ported at 48hz' date=' 3 cubes sealed. Group delay is one hump with the peak being 16ms between 37-50hz.[/quote']

Lol that literally tells you nothing about how its gonna act in a car. I havent seen anybody have good results with aq subs in sealed boxes. To db junior, how do you know they do good in 4th order? U personally done a 4th order wall with them and got loud?

 

[j4tk]

It funny people just repeat things they have heard about subs without knowing anything about them. The hdc3 are not 4th friendly but the HDS3 is. I can try to come up with a box design for you but I don't do renderings or cut sheets just overall dimensions and port sizing.

okay. cool. i emailed that guy but he never emailed me back.

 

[Beatin' 10+ year member]

Lol that literally tells you nothing about how its gonna act in a car.

who ever knows how any sub and box is going to act in any car? You worry about dumb shit.

 

[j4tk]

Audioque subs dont like 4th orders. You would be better off with a regular ported box. Like 7.5 - 8 cubes tuned to 38 hz with 17" of port per cube. Sub up port back, leave around 3/4th port width from back of hatch.

So I emailed someone who makes boxes, and you're right. He says audioque subs are, and I quote, HORRIBLE for bandpass boxes.

 

[Notloud00 10+ year member]

So I emailed someone who makes boxes, and you're right. He says audioque subs are, and I quote, HORRIBLE for bandpass boxes.

Yep. Sorry bud, if u wanted good bandpass subs sundown sa's or obsidian subs woulda been better.

 

[Beatin' 10+ year member]

how is the HDS315 so horrible for bandpass boxes? This is going to be amusing because I know somebody is full of shit.

qms 7.27

qes 0.5927

qts on website is wrong, listed as 0.829. It is actually 0.55 because of formula (qms x qes) / (qms + qes)

vas 56.73L

fs 35.66

ebp 60.17