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<blockquote data-quote="bump&amp;#039;n" data-source="post: 2523004" data-attributes="member: 572990"><p>I am looking for some idea&#039;s on building a all out SPL box. I aready have a tuneing freq in mind of like 40 to 60 HZ. Now I am doing this in a reworked interior,there&#039;s no back seat,or any thing that look&#039;s like one , the rear deck of the car has been removed(back seat wasn&#039;t big enough,and would not allow front seat&#039;s to sit right) and the trunk is now sealed off from the rest of the car to make the car&#039;s cabin smaller,it&#039;s mow 6 feet 8 inches from back of cabin to fire wall.&nbsp; Now I will be useing 3 12&#039;s or maybe 4.with 6 amp&#039;s,maybe 8. I am looking for advice on where to fire the sub&#039;s,straight foward tward winshield,or fire up onto back glass. Then I would like to know if the port&#039;s should fire the same way as the sub&#039;s,I was thinking&nbsp; of useing aero port&#039;s, but they would be to long and hit the back glass.&nbsp; I have also heard that sub&#039;s foward and port&#039;s back is&nbsp; a good combo, but have no idea how that work&#039;s, as far a the sound wave&#039;s.</p></blockquote><p></p>

[QUOTE="bump'n, post: 2523004, member: 572990"] I am looking for some idea's on building a all out SPL box. I aready have a tuneing freq in mind of like 40 to 60 HZ. Now I am doing this in a reworked interior,there's no back seat,or any thing that look's like one , the rear deck of the car has been removed(back seat wasn't big enough,and would not allow front seat's to sit right) and the trunk is now sealed off from the rest of the car to make the car's cabin smaller,it's mow 6 feet 8 inches from back of cabin to fire wall. Now I will be useing 3 12's or maybe 4.with 6 amp's,maybe 8. I am looking for advice on where to fire the sub's,straight foward tward winshield,or fire up onto back glass. Then I would like to know if the port's should fire the same way as the sub's,I was thinking of useing aero port's, but they would be to long and hit the back glass. I have also heard that sub's foward and port's back is a good combo, but have no idea how that work's, as far a the sound wave's. [/QUOTE]

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