I have 4 IXL 18.4 subs BNIB, never opened. I also have four used IXL 18.4 subs that I'm willing to sell as well. I've decided to do an IB with 8 Fi IB318 woofers. These IXL's would work IB, but they are really designed for LLT. Looking to get $150 ea for the used ones and $225 ea for the new ones plus shipping from 95747. If anyone has the IB318 S2 and wants to trade I'd be open to that as well. Let me know if you're interested. Thanks. Zac.