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need help planning (2) 15" L7 box for blazer


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first of all i'm brand new to this kickass forum

I am getting 2 of the 2006 L7 15"s and I need help with the box.  I will be using a hifonics brutus 1206d for each sub.

My plan is to do a crx style box with both subs firing up and 4-6 aero (persicion ports) facing the tail gate.

Since I have a Blazer, I need to build a ported box that will work well for that size of a vehicle.  I know that if you have a really big SUV, a really big ported box will sound good, if you have a small SUV a smaller ported box will sound good.....  so i was thinkin along the lines of 5 cubes per sub???  (this will be a SPL application and I wouldn't mind having a lil SQ for daily driving, but idk how realistic that is with this setup)

Does anyone have any ideas of how big the boxes should be or how many, how long the aero ports should be????

any help is GREATLY appreciated

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1st place circuit city car/spl show (maplewood,MN) 2006

146.6 dB's with 2 12" L7 and 1606d brutus

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I'd say more along teh lines of 6-10 cubics for both subs...... port length depends on the size of tehports, # of ports, size of box, and tuning frequency....... teh lower-better daily-0-- teh higher better spl

SMDsigbannr4.jpg1995 Geo Prism . FI BTL 12 P chamfer, 3rdmagnet HIXMAX COIL 1/0 big 3 HIFONICS COLOSSUS 1.7 cubs tuned to 60hz in the works 2xTruck battery 1125 cca.
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ok, when i said about 5 cubes, that was per sub... i think kicker reccomends like 2-6 cubes per L7

And for tuning i was thinking about 42hz???  That is kinda inbetween daily and comp

-------------------------------------------------

1st place circuit city car/spl show (maplewood,MN) 2006

146.6 dB's with 2 12" L7 and 1606d brutus

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4 - 6 ports....  I don't know if i should buy the 3 inch wide ports or the 4 inch wide ports. 

I would like to use just 4 ports if it'll give me enough port lenght, becasue i'll look good, but i'll use 6 or even 8 if i have to.

-------------------------------------------------

1st place circuit city car/spl show (maplewood,MN) 2006

146.6 dB's with 2 12" L7 and 1606d brutus

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9 cubs after displacemnt.... 42 hz 4 4" areo prts.. should be 5.25" long i belive

SMDsigbannr4.jpg1995 Geo Prism . FI BTL 12 P chamfer, 3rdmagnet HIXMAX COIL 1/0 big 3 HIFONICS COLOSSUS 1.7 cubs tuned to 60hz in the works 2xTruck battery 1125 cca.
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I can design the box in sketchup.. and tell you everything you need to know plus the picture of how the box will look.. for $10

SMDsigbannr4.jpg1995 Geo Prism . FI BTL 12 P chamfer, 3rdmagnet HIXMAX COIL 1/0 big 3 HIFONICS COLOSSUS 1.7 cubs tuned to 60hz in the works 2xTruck battery 1125 cca.
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Thx for the help, I have been building boxes a long time and can figure it out port lengths and box plans, I'm just looking for some advice on how many cubes... 9 sounds pretty good after displacement, so does 42 hz, i think i'll go with that.  THis setup will bang.

There's a lot of idiots up here in MN with rich ass systems and i can't wait to take them out with this setup.  I know it'll be super loud.  Noone realizes that the right box and the right electrical system can own just about any setup.  last summer i beat a pair of 12" T2's with a RF 4000 watt power amp by at least 2 dB's with my 2 L7 12's and a bx1606d  :)    to win a comp, so i need to step it up this year so i can win again.

-------------------------------------------------

1st place circuit city car/spl show (maplewood,MN) 2006

146.6 dB's with 2 12" L7 and 1606d brutus

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I used to be a best buy installer too.  :clown2:  until a co worker really meased a car up 2x ,  and i had to deal with all of the aftermath both times.

SMDsigbannr4.jpg1995 Geo Prism . FI BTL 12 P chamfer, 3rdmagnet HIXMAX COIL 1/0 big 3 HIFONICS COLOSSUS 1.7 cubs tuned to 60hz in the works 2xTruck battery 1125 cca.
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