Subwoofer Box Plans for 4 JL Audio Marine M7 12s 4TH Order
Save Money! Build Your Own Subwoofer Box. These subwofer box plans are perfect if your looking to DIY! Plans make it a breeze! Dont waste Materials! Get BANGIN BASS!
Included- 
Downloadable Zip File
Multiple 3-D Rendering Images 
Specs sheet W/ Subwoofer and Enclosure Specs 
Professional Optimized Cut Sheet W/Parts List

Designed for 4 JL Audio Marine M7 12s
Outside Dimensions-18”H x 48”W x 50”D
Tuning- 51hz
Volume- Sealed Volume- 3.48cuft Each Side=1.74cuft per woofer/ 8.31cuft ported
Enclosure is Based on Reccomended Manufature Specs
*May work for other 12"woofers, user caution advised*