Joshdashef Posted April 8, 2021 Report Share Posted April 8, 2021 SP4v2+ 15" Dual 1 Ohm DC 2k per coil Box tuned to 31 hz | ~4 net cubic feet | ~5.7 gross Slot port, 14.5 x 4" | 58" squared port area | 34.20 length | WinISD shows ~35/36 m/s rear port velocity Finally getting around to building with this sub after getting a new car... just want thoughts/input on this box design. 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...
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