u/Intelligent-Mix5321

Got sick of lurking so I rolled some bs with raws and my tobacco for spliffs

I'm happy whenever I open this tub theres always new babies and normally I can spot a pregnant isopod. There colors are also so cool some are completely gray scale which actually looks sick

I have a JL w0v3 15" sub and my old q bomb has been giving out on me. I figured go big or go home so I went very big, 11 cubic feet. I just followed what I tuned it to in winisd but after seeing how big that was in person I'm thinking I must be missing something and am worried something will go horribly wrong. Its tuned for 28 hz, my ports 18"x4"x15.3". My air velocity out the port is under 17 m/s, the excursion is below its maximim until it reaches 25hz. I only just found out about group delay and its group delay seems pretty bad, above 25ms from 24-32 hz. Is there something else I should check to make sure my sub at least wont be damaged? I've been planning on getting some 10s and if I need to I could probably create multiple chambers to shrink the 15s box but it would be difficult at this point.