Instant digital delivery — single & dual plans, tuned to 30 / 33 / 37 / 40 Hz
Engineered enclosure plans
Precision slot-ported enclosure designs for 6.5″ to 18″ subwoofers — single or dual configs, each tuned to 30, 33, 37, or 40 Hz. Download the cut sheet, grab your MDF, and start building tonight.
Tuning, explained
Tuning is the heartbeat of a ported box. It decides whether your system digs deep or hits hard.
Lowest extension and a warm, musical character. Great for metal, rock, and any setup where you want to feel the low notes, not just hear them.
Deep enough to hit the lows, tight enough to stay punchy. The safe choice for an all-around daily driver.
Leans into output and mid-bass slam. Popular for hip-hop, trap, and demo-style builds.
Highest tuning in the lineup — built for SPL, burps, and competition-style setups where raw output wins.
How it works
Checkout securely and your plan downloads instantly — a direct link on the confirmation page and in your email.
Print the cut sheet at 100%, lay it out on 3/4″ MDF, and cut every panel to the printed dimensions.
Glue, screw, seal, and wire. The assembly guide walks you through it — first-timers build these every day.
FAQ
Instantly. As soon as checkout completes, you'll get a secure download link on the order confirmation page and by email.
Lower tuning (30 Hz) gives deeper, smoother bass that's great for music. Higher tuning (40 Hz) leans into output and punch — popular for SPL and hip-hop-heavy setups. 33–37 Hz is the sweet spot for most daily drivers.
Dual subs move more air — more output and more cone area. Single boxes are cheaper to build and fit tighter spaces. Both are available in every size and tuning.
Standard shop tools — circular or table saw, drill, jigsaw for the sub cutout — plus wood glue, screws, and 3/4″ MDF. The cut sheet includes every dimension you need.
Yes — that's exactly what the Custom Design Service does. We engineer around your subwoofer, vehicle, and available space.