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Old 08-31-2009, 12:45 AM
 
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Default Best enclosure design for 4 15'' Hcca's!

For the best sound and loudness (Db's) for these subs can you give me box specs for 4 15'' Orion Hcca's? (Box cuft, port width, height,
length etc.) Enclosure will be going in a Chevy blazer xtreme.


Blazer Pictures

http://image.trucktrend.com/f/reader...-rear-view.jpg


Trunk (Seats up)

http://www.duffysautos.com/DA08-358%20Trunk.jpg

Trunk (Seats down)

http://image12.webshots.com/13/7/15/...2CbDYKI_fs.jpg


BTW heres enclosure specs,dimensions for orion hcca 15 (Specs close to bottom)


http://www.orioncaraudio.com/Support...ubs%202007.pdf

Fs: 23.72
Vas:4.01
Vas:113.68
Qms:2.99
Qes:0.46
Qts:0.40
Re: 4.08
Z: 2 x 2
Le: 2.59
Efficiency(1W @ 1M, dB): 88
Xmax: (one way linear excursion, in.) 1.2
Xmax: (one way linear excursion, mm) 30
Pe: (Continuous power handling, watts) 2000rms
Peak: (Music, watts)** 4000
Mms: (Total moving mass, grams):517.86
Cms: (mechanical compliance, mm/N) 0.087
Bl: (Motor strength, Tesla-M): 26.03
Sd: (Effective radiating area, sq. cm.) 962.1
Sd: (effective radiating area, sq. m.) 0.09621
Sd"(effective radiating area, sq. in.)149.1258
Frequency range (Hz): 24-250
Energy Bandwidth Product (EBP): 51



Driver Physical Dimension


Speaker Displacement (cu ft.) 0.37704
Mounting hole diameter (mm): 383
Mounting hole diameter (inches): 15.079
Mounting depth (mm): 294
Mounting depth (inches): 11.575
Magnet Weight (Oz): 445
Basket diameter (inches)



Recommended Enclosures


Typical sealed enclosure (cu. ft.): 1.9 to 2.5
Vented enclosure (cu. ft.): 3.5
Port tuning frequency (Hz):35
Port diameter (inside, in.):6.25
Equivalent square port (in.): 5.5x5.5
Port length (in.): 14.5



NOTE:
Due to the high power capabilities and long excursion of these woofers, the Thiele/Small Parameters
were calculated and measured using a Klippel analyzer system.


One more thing:Whats the best mdf wood thickness for best bass sound loudness overrall 3/4mdf or 1''mdf?


AND SORRY FOR THE LONG SUB SPECS NEW TO THIS ENCLOSURE THING DIDNT NO WHAT TO COPY & PASTE!!!

'Thanks!! =)
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Old 08-31-2009, 12:55 AM
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You're probably going to want to take some measurements of the maximum space you're willing to give up... For example, a full wall is probably going to be your loudest bet, but you might not want to give up all that height...

Also, how much power are you going to be running? That'll determine how much volume and port you'll want in your enclosure.

Also, you're going to want to brace the hell out of it, since a box that big unbraced is going to flex like no other, and a flexing box is no good. So you'll have to take into account the volume of the bracin in your calculations. Just a heads up...
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Old 08-31-2009, 12:58 AM
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If i was gonna run 4 15s id go with birch wood. But first check my electrical lol
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Old 08-31-2009, 01:00 AM
 
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Quote:
Originally Posted by 98AckCL23 View Post
You're probably going to want to take some measurements of the maximum space you're willing to give up... For example, a full wall is probably going to be your loudest bet, but you might not want to give up all that height...

Also, how much power are you going to be running? That'll determine how much volume and port you'll want in your enclosure.

Also, you're going to want to brace the hell out of it, since a box that big unbraced is going to flex like no other, and a flexing box is no good. So you'll have to take into account the volume of the bracin in your calculations. Just a heads up...
I dont have the truck yet thats just the one I'm getting I just took the pics of the internet I want a trunk setup not really lookin for a wall Also, I'm willing to give up the back seats If I need to. I'm going to be running 4k to each sub (total 1600wrms) I want it tuned to 34hz. So what enclousre specs do you recommend?

Last edited by lamchop_8; 08-31-2009 at 01:02 AM.
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Old 08-31-2009, 01:01 AM
 
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Quote:
Originally Posted by gboo559 View Post
If i was gonna run 4 15s id go with birch wood. But first check my electrical lol
Whats birch wood and how good is that? Is it better than mdf? If so, how? Like what are the pros and cons?
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Old 08-31-2009, 01:02 AM
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having a wall doesnt always mean it will be the loudest.
if you dont build a good box yes you will be bracing. i have never used any in the boxes ive built and have had no problems.

they suggest 3.5ft per. that isnt a bad place to start but i would use that as the gross volume.
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Old 08-31-2009, 01:04 AM
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Quote:
Originally Posted by lamchop_8 View Post
Whats birch wood and how good is that? Is it better than mdf? If so, how? Like what are the pros and cons?
birch is far lighter but costs a lot more.
another thing you can use to save on weight is trupan but its not cheap either.
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Old 08-31-2009, 01:07 AM
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trust me, birch is the way to go.

i've pulled my box out like 20 times since its been built.
it helps to be light.

its lighter than a L5 box i built recently.
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Old 08-31-2009, 01:08 AM
 
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Quote:
Originally Posted by bones22 View Post
having a wall doesnt always mean it will be the loudest.
if you dont build a good box yes you will be bracing. i have never used any in the boxes ive built and have had no problems.

they suggest 3.5ft per. that isnt a bad place to start but i would use that as the gross volume.
Well how much cuft. would you use per sub?
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Old 08-31-2009, 01:10 AM
 
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Quote:
Originally Posted by RidnClean View Post
trust me, birch is the way to go.

i've pulled my box out like 20 times since its been built.
it helps to be light.

its lighter than a L5 box i built recently.
Well birch wood make my subs sound the same as using mdf? Or will birch wood give me more bass and would they be louder or would it be no difference at all than using mdf?
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