jnasty Posted May 6, 2020 Report Share Posted May 6, 2020 All my equipment is in, just need some help with an enclosure design. I've got 2 12s sealed on 1200w each. The design calls for a down-firing box. Now, this box will be tight between the wheel wells and a wedge type of enclosure(against the back seat). So in reality, the only room for them to breathe out of is the space in front. (See crude drawing). I've read that 1/3 or 1/4 of cone diameter should be my clearance from surround to the floor. 3-4in in this case. When the rule of thumb is 1/3 cone area, is that assuming that much space on all sides? Vehicle: 2002 Ford Escape Electrical: 275A Singer, 160ah XS/Yinlong lithium, 2,000farad XS Supercaps Head Unit: Apple iPad Hi-Res Passthrough Topping d10s Speakers: {ACTIVE} - (4) Arc Audio RS 6.0, (2) Arc Audio RS 4.0 & (2) Arc Audio RS 1.0 Sub Stage: (2) TC Sounds LMS Ultra 5400 18" Amplifiers: ARC Audio - (4)4200SE(comp modded, (2)4000SE Processing: Helix DSP Pro W/ Dash Mounted Director Link to comment Share on other sites More sharing options...
bmwking Posted May 6, 2020 Report Share Posted May 6, 2020 1/2 the cone diameter from the center of the dustcap. so 6" from center of dustcap to nearest obstruction. plus it's sealed, you'll be fine Link to comment Share on other sites More sharing options...
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