wow you guys are harsh.. Forums are meant to help educate individuals, give him a chance. Welcome to SMD Austin. What amp are you running to the subs? What the other guys are trying to say.... is that pyramid doesn't make high quality products, and if you build your box right it will probably cost more than your subs. It is advisable to run 1 good quality sub rather than multiple poor quality ones.
Were just trying to help you out. Honestly if u bought those you would be disappointed and the output you would be getting. They would most like blow in a month and you wouldn't hit over 140 if that. Your better of getting 1 or 2 18's such as (Fi,DC,SSA,RE,AA,Incriminator,Sundown ETC) any of those choices I listed above will take up almost have the space and get 10 times louder than the 18's you have in mind. The cheap route is not always the best way to go (Especially with car audio). The guys are right. Dont get them just 2 say u have 4 18's while one dude has 1 and its twice as loud. That would be very disappointing. Just take this under consideration.
4 18" box help
in Subwoofers / Enclosures
Posted
Were just trying to help you out. Honestly if u bought those you would be disappointed and the output you would be getting. They would most like blow in a month and you wouldn't hit over 140 if that. Your better of getting 1 or 2 18's such as (Fi,DC,SSA,RE,AA,Incriminator,Sundown ETC) any of those choices I listed above will take up almost have the space and get 10 times louder than the 18's you have in mind. The cheap route is not always the best way to go (Especially with car audio). The guys are right. Dont get them just 2 say u have 4 18's while one dude has 1 and its twice as loud. That would be very disappointing. Just take this under consideration.
"Hope this Helps"