Kpincria Posted September 14, 2020 Report Share Posted September 14, 2020 Recommended internal air space for a vented enclosure using one dual 4 ohm evl 18 Also I'd like to know what the speaker displacement is for that particular woofer Box plans welcome........ Link to comment Share on other sites More sharing options...
Joshdashef Posted September 14, 2020 Report Share Posted September 14, 2020 https://www.skaraudio.com/products/evl-18-inch-car-subwoofer?variant=30196958733 Recommended Ported Volume: 3.75 ~ 4.50 ft³ No specs on displacement, but for an 18 I would assume between .15 and .3 cubic feet. You're going to want to include what power you plan on running along with maximum dimensions SMD Tool Map (2022): https://www.stevemeadedesigns.com/board/topic/220267-smd-tool-map-2022/ My Port Size Calculator (in progress): https://www.stevemeadedesigns.com/board/topic/217087-port-size-calculator-in-progress/ Common Port Walls for a Slot Port: https://www.stevemeadedesigns.com/board/topic/217076-common-port-walls-why-it-matters-to-your-box/?tab=comments#comment-3240313 Link to comment Share on other sites More sharing options...
PaperNoFlavors Posted September 14, 2020 Report Share Posted September 14, 2020 (edited) Heres the info for displacement. I used the specs they gave on https://www.diyaudioandvideo.com/Calculator/SpeakerDriverDisplacement/ Speaker Displacement Effective Cone Diameter = 18 inMounting Depth = 10.1 inOne-way, Linear Excursion (Xmax) = 0.9 inMagnet Diameter = 7.35 inMagnet Height = 3.5 inFront Baffle Thickness = 0.75 inFlush Mount = NoDimensions Driver Displacement = 0.24 ft3 Edited September 14, 2020 by PaperNoFlavors Link to comment Share on other sites More sharing options...
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