12w3v2

Product Brand & Model: Want to trade for a JL XD 400/4. Items to trade: 1. Arc Audio "mini" Amp KS 125.2 SOLD! 2. Memphis Audio AR-HC 100 Amp 3. Memphis Audio ST-250D Amp 4. JL Audio 12W3v2 D6 in ported enclosure SOLD! 5. Veritas Accumatch AM-1200 used 2 months. Condition of all items: 1...

I am trying to wrap my head around enclosure tuning but for some reason it is just not making sense to me. So I am hoping someone can simplify it for me. The JL manual recommends a ported box that is 1.75 net volume tuned at 30.3. I spoke with tech support to see if they had the port...