12" Single Sealed Subwoofer Enclosure – MDF, Carpeted
You want bass that hits clean and tight without rattles or bloat. This 12-inch single sealed subwoofer box is built from 3/4" MDF, lined in black automotive carpet, and finished with gold-plated binding posts for a solid, noise-free connection. Drop in your favorite 12" driver, wire it up, and enjoy punchy, controlled low end that stays musical at any volume.
Features
- Sealed single 12" design for tight, accurate bass response.
- 3/4" MDF construction for rigidity and reduced panel resonance.
- Black carpet finish for a clean OEM look and scratch resistance.
- Gold-plated binding posts (banana-ready) for low-resistance, corrosion-resistant connections.
- Cutout diameter: 11-1/8"
- Max mounting depth: 13"
- External dimensions: 13.5" (H) × 13.5" (W) × 13.5" (D)
- Approx. internal volume: 1.13 cu ft (pre-driver)
- Single terminal cup for one subwoofer
Advantages
- Accurate low end: sealed alignment naturally controls cone motion for tight, musical bass.
- Compact cube footprint: easy to position in trunks, hatchbacks, SUVs, or under truck tonneaus.
- Clean wiring: binding posts accept bare wire, spades, or banana plugs for fast installs.
- Road-ready build: dense MDF + carpet helps resist vibration and wear.
- Wide driver compatibility: generous 13" depth fits many 12" subs (check your driver specs).
Benefits
- Tighter bass you can feel: punchy kick drums, fast transients, less boom.
- Plug-and-play upgrade: no box math—drop in a 12" sub, wire it, and go.
- Cleaner installs, fewer rattles: solid MDF keeps energy in the music, not the panels.
- Built for the long haul: durable carpet finish stands up to gear loading and daily use.
Quick Specs
| Subwoofer Size | 12" (single) |
|---|---|
| Alignment | Sealed |
| Cutout Diameter | 11-1/8" |
| Max Mounting Depth | 13" |
| Internal Volume (approx.) | 1.13 cu ft (before driver displacement) |
| Material | 3/4" MDF, black carpet |
| Terminals | Gold-plated binding posts (banana-ready) |
| Exterior (H × W × D) | 13.5" × 13.5" × 13.5" |
FAQ – 12" Single Sealed Subwoofer Enclosure
Will my 12" subwoofer fit this box?
Most standard 12" drivers fit the 11-1/8" cutout and up to 13" mounting depth. Check your sub’s cutout and depth specs before installing.
What kind of bass can I expect from a sealed box?
Sealed enclosures deliver tight, accurate bass with fast transients—great for rock, metal, jazz, and daily driving where control matters more than maximum boom.
Do I need polyfill?
Polyfill can smooth response and make the box behave as if it’s slightly larger. Many installers add light to moderate fill; start small and tune by ear.
What wiring connects to the terminals?
The gold-plated binding posts accept bare wire, banana plugs, or spade lugs. Use quality OFC cable sized to your amp’s output and run length.
Is this enclosure strong enough for high-power subs?
The 3/4" MDF panels are sturdy for most 12" drivers. For extreme SPL builds, consider additional bracing and verify your sub’s recommended enclosure volume.
Will this fit in a truck behind the seat?
The enclosure’s 13.5" cube footprint fits many trunks and hatches. Behind-seat truck installs may require a slimmer or custom enclosure—measure your space first.