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<blockquote data-quote="n3wt" data-source="post: 7252606" data-attributes="member: 629582">I&#039;m putting 2 Dc lvl4 12s in my trunk, inverted, firing towards the back of the trunk. I will have at least half the seat down most of the time and will take out the speakers in the rear deck. I&#039;m thinking about building 2 boxes like this:Box Width: 19.5Box Height: 17Depth: 15Wood Thickness:&nbsp; .75Square Port Width: 1.75Square Port Length 2 : 8Volume: 1.796 ft^3Square Port Area: 27.125Tuned Frequency: 37.99This is what I used to come up with that: <a href="http://reaudio.com/speaker_box/LPort_Box_Calc.html" target="_blank">RE Enclosure Calculator</a>I know 1.5ft^3 is the recommended box volume but The tuning frequency was too high at that volume while keeping 18 in^2 of port area per ft^3 of box volume.What do you guys think? Too big of a box?</blockquote>

[QUOTE="n3wt, post: 7252606, member: 629582"] I'm putting 2 Dc lvl4 12s in my trunk, inverted, firing towards the back of the trunk. I will have at least half the seat down most of the time and will take out the speakers in the rear deck. I'm thinking about building 2 boxes like this: Box Width: 19.5 Box Height: 17 Depth: 15 Wood Thickness: .75 Square Port Width: 1.75 Square Port Length 2 : 8 Volume: 1.796 ft^3 Square Port Area: 27.125 Tuned Frequency: 37.99 This is what I used to come up with that: [URL="http://reaudio.com/speaker_box/LPort_Box_Calc.html"]RE Enclosure Calculator[/URL] I know 1.5ft^3 is the recommended box volume but The tuning frequency was too high at that volume while keeping 18 in^2 of port area per ft^3 of box volume. What do you guys think? Too big of a box? [/QUOTE]

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