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Chris Chau

Box Design for 2 SA-12's

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Quick question, I just bought 2 Sundown SA-12's and I'm designing a box.

they say the SA-12's like 2 cubes each, but can go as large as 2.25 cubes....now personally i feel like i can give them a bit more, but i'd like to ask some people who have had SA's before if they do best in the recommended volume.

Each setup will be tuned at 34 hz or if you SA owners have any input on the tuning let me know!

Last question i have is should i use just one 6 inch Aero? or use 2? or even 3 4 inchers?

Thanks,

Chris

Edited by Chris Chau

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i have an 8" PVC aero for sale. Would be absolutely ideal for 4-4.5 cubes. ill give you a killer deal.

IMG00221.jpg

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SUBSCRIBE AT YOUTUBE! 18abVFL < CLICK!!

2005 Subaru Impreza

My build log.

Head unit- Kenwood Excelon KDC-X695

Front doors- Rockford Fosgate 6.5" Prime components

Rear doors- Rockford Fosgate 4" Punch coaxials

Sub amp- Audiopipe AP18001d

Subs- Two American Bass TNT 10"s

Box- 2.6 cubes @ 34hz, 36in of port

Big 3 & run of Raptor 1/0 to rear powercell

TEAM 808 UPSTATE NY.

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Can it be heard 2 blocks away, thats how i rate systems.

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1 6" aero will be just fine, what power are you running?

i would do a box just like this if you could:

a2d1f86c.jpg

that box was 4.55 cubes tuned to 34ish hz for a pair of SA-12s. I had them on my SAZ3500D @ .5 for daily.

heres the vid:

depending on your power of course, i would try for 4.0-4.25 cubes @ 34hz with a single 6" aero, also which vehicle is this going in?

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Team Sundown Audio

**CURRENT** -- 2012 Scion tC Build Click Here

**OLD** -- 2002 Pontiac Grand AM Build Click Here
check them out, slap me a comment

2002 Pontiac Grand AM SE 2.2l 4 cylinder ecotec.
-------------------------------------------------------------------

Head Unit - Alpine CDA-9887
Subs - 2x Z 12 v.2s - v.3 + NS Soft parts
Amplifier - Sundown Audio SAZ-3500D
Enclosure - 3.33 Cubes tuned to 34.66hz
Front Stage - JBL P660c 6.5" Components
Rear Deck - Powerbass 4xl 6.5" Mid-Range
Front Stage Amplifier - Sundown Audio SAX-100.4D
Wires - Kicker Hyperflex 1/0, KnuKonceptz 1/0, Knu 4 and 8 Gauge, Kicker RCAs
Electrical - 275 AMP DC Power H/O Alternator, XS Power S3400, XS Power D2700
Videos - http://www.youtube.com/user/BeAILsTaR13
-------------------------------------------------------------------

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For a 4 cubic feet net enclosure a 6 aero 12 inch long (about half of the flange(s) length(s) excluded) will tune you to 34 Hz. But port area is below recommendation,

3 4" aeros 16.8 length will do the same within recommended port area range.

Edited by Joe X

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Going in a civic and These will be going on 2.1k Rms and the problem with having everything on the same face is that my trunk allows a box no wider than 34 inches and 16.5 tall....which if i did the calculations right, would be too small for the ports and subs on the same face,

unless i offset them with the subs moved down a bit on the face and the port moved up. The only think I'm really worried about is that with this cramming, will there be enough room for the MDF to have enough support to not flex.

I also came to ask u guys, if i did do the 3 4inch aeroport or even the single 6, will subs forward into the cabin and ports back create some noise issues?

Or is subs up port back a better design for the given space?

- I could just stick with everything on the same face with a single six crammed on the face but will subs up port back/subs forward port back be relatively the same efficiency

Edited by Chris Chau

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you dont wanna have subs facing back and port firing into the cabin in a trunk, or even the other way around, if you have a custom 6" aero (the one in my box above) the 6" cutout is only 7 1/4" rather than the 8 3/8" a PSP aero is, or you can cut the outer aero flare

but why do you want to use aeros? you can get away with a slot box easily if only doing 2 12s in a trunk

Alright but that means i can only do 1 6 on the same side which someone said might not be enough port?

1 6" aero is just fine, did you even watch my video above? exactly what i'm doing... plus i just did a build with 2 sa12s and 2 4" aeros, which 1 6" has more port than the 2 4s by just a little... 1 6" aero will be enough for these.

Edited by BeAlLsTaR13

Team Sundown Audio

**CURRENT** -- 2012 Scion tC Build Click Here

**OLD** -- 2002 Pontiac Grand AM Build Click Here
check them out, slap me a comment

2002 Pontiac Grand AM SE 2.2l 4 cylinder ecotec.
-------------------------------------------------------------------

Head Unit - Alpine CDA-9887
Subs - 2x Z 12 v.2s - v.3 + NS Soft parts
Amplifier - Sundown Audio SAZ-3500D
Enclosure - 3.33 Cubes tuned to 34.66hz
Front Stage - JBL P660c 6.5" Components
Rear Deck - Powerbass 4xl 6.5" Mid-Range
Front Stage Amplifier - Sundown Audio SAX-100.4D
Wires - Kicker Hyperflex 1/0, KnuKonceptz 1/0, Knu 4 and 8 Gauge, Kicker RCAs
Electrical - 275 AMP DC Power H/O Alternator, XS Power S3400, XS Power D2700
Videos - http://www.youtube.com/user/BeAILsTaR13
-------------------------------------------------------------------

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For a 4 cubic feet net enclosure a 6 aero 12 inch long (about half of the flange(s) length(s) excluded) will tune you to 34 Hz. But port area is below recommendation,

3 4" aeros 16.8 length will do the same within recommended port area range.

for a 4 cu box with an 8" aero how long would it need to be for 32hz? 34hz? Thanks

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