4.5 cu ft box for Sundown Audio SAV2 12s. Walkaround and Demo

I upgraded my subwoofer box from my previous sealed box. I have not metered this one yet but i think im hitting over a 142db since my old sealed box hit a 140.7. im wired to 1 ohm now vs 2ohms before. tuned at 1300 watts with a multimeter. The song is: Devilish Trio - Demon Lover I do not own rights to this song. If you have any questions, let me know down below and ill answer right away to my best ability. Thanks for watching.