Engineered enclosure plans

Bass, engineered. Built by you.

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.

  • Instant download
  • Single & dual options
  • 4 tuning options
Slot-ported subwoofer enclosure
6 Sub sizes — 6.5″ to 18″
2 Configs — single & dual
4 Tunings — 30 to 40 Hz
24/7 Instant digital delivery

Tuning, explained

What tuning frequency should you pick?

Tuning is the heartbeat of a ported box. It decides whether your system digs deep or hits hard.

30 Hz

Deep & Smooth

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.

33 Hz

Balanced

Deep enough to hit the lows, tight enough to stay punchy. The safe choice for an all-around daily driver.

37 Hz

Loud & Punchy

Leans into output and mid-bass slam. Popular for hip-hop, trap, and demo-style builds.

40 Hz

Max Output

Highest tuning in the lineup — built for SPL, burps, and competition-style setups where raw output wins.

Custom enclosure design service

Custom design service

Your ride. Your sub. Your box.

Stock plans cover the common builds. When your space, sub, or goals don't fit the mold, we engineer a one-off enclosure around your exact setup — vehicle measurements, subwoofer specs, and your tuning goals.

Three tiers from $49 — Standard, Pro, and Competition.

Explore Custom Designs

How it works

From checkout to build in minutes

  1. 01

    Buy & download

    Checkout securely and your plan downloads instantly — a direct link on the confirmation page and in your email.

  2. 02

    Cut your panels

    Print the cut sheet at 100%, lay it out on 3/4″ MDF, and cut every panel to the printed dimensions.

  3. 03

    Assemble & bump

    Glue, screw, seal, and wire. The assembly guide walks you through it — first-timers build these every day.

FAQ

Questions before you build

How do I receive my plan after purchase?

Instantly. As soon as checkout completes, you'll get a secure download link on the order confirmation page and by email.

What's the difference between tuning frequencies?

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.

Should I get a single or dual enclosure?

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.

What tools and material do I need?

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.

Can you design an enclosure for my specific vehicle?

Yes — that's exactly what the Custom Design Service does. We engineer around your subwoofer, vehicle, and available space.

Get the drop on new plans

New designs, tuning guides, and build tips — no spam, unsubscribe anytime.