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<blockquote data-quote="98_sport_ford" data-source="post: 8034557" data-attributes="member: 650905">I&#039;m currently running two alpine type-R model SWR-1243Ds. I was wanting to build a box with the subs firing upwards and the port towards the rear. I&#039;m going to be running a square port. I will be using a router and rounding the edges off and all around the box. I need help with some specs to build a box.the subwoofers specs are:Ideal Ported Volume: 1.5 ft^3/wooferVas (liters): 38Fs (Hz): 31Qts: 0.53Xmax (millimeters): 20I listen to a good mixture of music; Rock, country, rap. Not much metal or anything. I&#039;m thinking around 28-32Hz port tuning?I&#039;m a pretty good builder but I really lack when it comes to the math involved with building speaker enclosures. I&#039;m working with a &#039;98 Ford Explorer Sport (the two door model explorer) I plan on using a sheet of MDF and raising the floor and running all wires and amps below the box with a plexi-glass cover over the amp. Any help with box and cut measurements would be awesome.</blockquote>

[QUOTE="98_sport_ford, post: 8034557, member: 650905"] I'm currently running two alpine type-R model SWR-1243Ds. I was wanting to build a box with the subs firing upwards and the port towards the rear. I'm going to be running a square port. I will be using a router and rounding the edges off and all around the box. I need help with some specs to build a box. the subwoofers specs are: Ideal Ported Volume: 1.5 ft^3/woofer Vas (liters): 38 Fs (Hz): 31 Qts: 0.53 Xmax (millimeters): 20 I listen to a good mixture of music; Rock, country, rap. Not much metal or anything. I'm thinking around 28-32Hz port tuning? I'm a pretty good builder but I really lack when it comes to the math involved with building speaker enclosures. I'm working with a '98 Ford Explorer Sport (the two door model explorer) I plan on using a sheet of MDF and raising the floor and running all wires and amps below the box with a plexi-glass cover over the amp. Any help with box and cut measurements would be awesome. [/QUOTE]

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