Hi everyone! I'm a college senior building a dual-18" PA subwoofer as a school project and a way to buff my portfolio. Here are the transfer functions and WINISP stats. The sub uses Colussus 18B woofers and will be tuned to 28.5Hz. Theres is a shoddy drawing attached of the design, these graphs are for 1 driver(1/2 of the full design). I apologize for the poor drawing, I've been struggling to use modeling software. If anyone has any feedback, I'd really appreciate it, though keep in mind that this is extremely limited by budget! I'm also looking for FOH/Sound technician gigs in Nashville, if anyone knows of any!