---
product_id: 1133822
title: "BELVA MDFD12 Dual 12-inch Car Subwoofer Box Sealed 3/4-inch MDF Prelined Polyfil"
brand: "belva"
price: "A$444"
currency: AUD
in_stock: true
reviews_count: 8
category: "Belva"
url: https://www.desertcart.com.au/products/1133822-belva-mdfd12-dual-12-inch-car-subwoofer-box-sealed-3
store_origin: AU
region: Australia
---

# 2.5 cu ft optimized internal volume Dual 12-inch sealed chambers 3/4-inch durable MDF build BELVA MDFD12 Dual 12-inch Car Subwoofer Box Sealed 3/4-inch MDF Prelined Polyfil

**Brand:** belva
**Price:** A$444
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your ride’s bass game — because average sound is so last year.

## Quick Answers

- **What is this?** BELVA MDFD12 Dual 12-inch Car Subwoofer Box Sealed 3/4-inch MDF Prelined Polyfil by belva
- **How much does it cost?** A$444 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/1133822-belva-mdfd12-dual-12-inch-car-subwoofer-box-sealed-3)

## Best For

- belva enthusiasts

## Why This Product

- Trusted belva brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Power:** Pre-lined with Poly-Fil and gold post terminals for effortless, clean installation—get booming fast.
- • **Built to Endure the Road:** Robust 3/4-inch MDF construction with sleek black carpeting for lasting durability and style.
- • **Leak-Free Sound Integrity:** Fully caulked seams eliminate air leaks, delivering crisp, distortion-free bass every time.
- • **Precision Engineered Volume:** 2.5 cubic feet of optimized internal space ensures your subs perform at peak power.
- • **Bass That Commands Attention:** Dual sealed chambers maximize airspace for deep, punchy bass that turns heads.

## Overview

The BELVA MDFD12 is a premium dual 12-inch sealed subwoofer box crafted from sturdy 3/4-inch MDF with a sleek black carpet finish. Engineered with two separate chambers totaling 2.5 cubic feet of optimized internal volume, it delivers powerful, distortion-free bass. Fully caulked seams and pre-lined Poly-Fil enhance sound quality, while gold post terminals simplify installation. CARB Phase 2 compliant, this enclosure combines durability, style, and superior audio performance for the discerning car audio enthusiast.

## Description

Dual 12-inch Sealed Car Sub Box Made with 3/4" MDF and lined w/Polyfil (2.46 cu ft Airspace - 12SQB). You've got an awesome subwoofer there, pal. But where's it gonna go? You can't just throw that thing in the trunk and call it a day. Don't worry, Belva's got your back. With superior construction, great features and everything you need for bass, you'll be ready to pass up that entry-level box you've been eyeballing. Belva Subwoofer Boxes are CARB Phase 2 Compliant You get quality boxes with solid 3/4" MDF because nothing else will do the job right. You want to flex your windshield, not your box's innards. You get polyfill built into the box, making sure your subs perform perfectly. On top of that, you get a box that's CARB Phase 2 Compliant, meaning your box won't emit as much nasty formaldehyde as the competition. Better for your bass and better for you.

Review: Perfect for JL Audio W6 - Awesome it was perfect sturdy well put together very prompt delivery and made my subwoofer sound great
Review: Very nice - Good size port, good build quality, lots of polyester filling on the inside. Only complaint about it is they used screw down wire holders and not spring loaded push downs but either way box is nice and sounds good af. Using a SDR 12” in it. Before I used a Jensen 12” from Walmart and it also hit hard af in this box too

## Features

- 𝐃𝐮𝐚𝐥 𝐒𝐞𝐚𝐥𝐞𝐝 𝐄𝐧𝐜𝐥𝐨𝐬𝐮𝐫𝐞: Experience powerful bass performance with the BELVA MDFD12 Dual 12-inch Car Subwoofer Box, featuring two separate chambers for dual 12" subwoofers, providing optimal air space and enhancing bass response in your vehicle's audio system.
- 𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐞𝐝 𝐈𝐧𝐭𝐞𝐫𝐧𝐚𝐥 𝐕𝐨𝐥𝐮𝐦𝐞: With a total internal box volume of 2.5 cubic ft (1.25 cubic ft per chamber), this enclosure is meticulously engineered to provide the perfect amount of space for each subwoofer, ensuring maximum bass output and performance.
- 𝐃𝐮𝐫𝐚𝐛𝐥𝐞 𝐂𝐨𝐧𝐬𝐭𝐫𝐮𝐜𝐭𝐢𝐨𝐧: Built to last, this subwoofer box is constructed from high-quality 3/4" MDF, offering exceptional durability and stability for long-lasting use. The durable black carpeting adds a sleek and stylish touch while providing added protection against wear and tear.
- 𝐄𝐟𝐟𝐢𝐜𝐢𝐞𝐧𝐭 𝐃𝐞𝐬𝐢𝐠𝐧: The seams of this subwoofer box are fully caulked to minimize air leakage and maximize efficiency, ensuring crisp and distortion-free bass reproduction for an immersive audio experience.
- 𝐂𝐨𝐧𝐯𝐞𝐧𝐢𝐞𝐧𝐭 𝐈𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧: Pre-lined with Poly-Fil and equipped with gold post terminals, this subwoofer box offers clean and easy wiring access, making installation a breeze. With dimensions of 28" wide, 14" depth, and 14" height, it's designed to fit seamlessly into your vehicle's audio setup while delivering powerful bass performance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00EV77D7Q |
| Audio Driver Size | 12 Inches |
| Audio Driver Type | Dynamic Driver |
| Best Sellers Rank | #40,520 in Electronics ( See Top 100 in Electronics ) #55 in Car Subwoofer Boxes & Enclosures |
| Chassis Size | Sealed |
| Color | Black |
| Compatible Devices | Laptop, MP3 Player, Smartphone |
| Control Method | Touch |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.4 4.4 out of 5 stars (636) |
| Date First Available | August 29, 2013 |
| Included Components | 2 x Subwoofer |
| Is Waterproof | FALSE |
| Item Weight | 28.2 pounds |
| Item model number | MDFD12 |
| Manufacturer | BELVA |
| Model Name | mdfd12 |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Product Dimensions | 15"D x 30"W x 15"H |
| Recommended Uses For Product | construction |
| Series Number | 12 |
| Set Name | Dual 12-inch Subwoofer Set |
| Shape | rectangular prism |
| Speaker Size | 12 Inches |
| Speaker Type | Subwoofer |
| Special Feature | Durable |
| Specific Uses For Product | dual subwoofer installations |
| Style | Elegant |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 12 Inches |
| Surround Sound Channel Configuration | 2.0 |
| UPC | 818060010125 |
| Warranty Type | Limited |
| Wireless Communication Technology | No Wireless Communication Technology |
| Woofer Diameter | 12 Inches |

## Product Details

- **Audio Output Mode:** Stereo
- **Brand:** BELVA
- **Connectivity Technology:** wired
- **Material:** Wood, Fabric
- **Mounting Type:** bracket mount

## Images

![BELVA MDFD12 Dual 12-inch Car Subwoofer Box Sealed 3/4-inch MDF Prelined Polyfil - Image 1](https://m.media-amazon.com/images/I/41yZZrUwafL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: will this box sound good with earthquake tnts? also would it fit in my 01 corolla?**
A: Yea it will sound good. I have two 12inch audiopipe subwoofer in this box and i have it on my 2012 lancer and it sounds amazing. I deff recommend it

**Q: Do you have to solder the wire yourself on the inside?**
A: How exactly were you imagining that would take place otherwise?

**Q: Can this fit a 2013 Dodge Charger ?**
A: Just recline the front passenger seat a little bit and it fits perfectly. For God's sake, man. If it wouldn't fit in a Dodge Charger, what would it fit in?

**Q: Will it soud good in a Chevy Cruze 2014?**
A: Definitely. After seeing your question I went and traded my car in on a used 2014 Chevy Cruze then bought this box and subwoofers to install in it. Then I installed the box and subs in the 2014 Chevy Cruze. And after getting everything tuned I must say it is evident that I should've used the money I spent on audio equipment to put toward buying a better car.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect for JL Audio W6
*by M***B on January 26, 2026*

Awesome it was perfect sturdy well put together very prompt delivery and made my subwoofer sound great

### ⭐⭐⭐⭐⭐ Very nice
*by L***K on June 6, 2024*

Good size port, good build quality, lots of polyester filling on the inside. Only complaint about it is they used screw down wire holders and not spring loaded push downs but either way box is nice and sounds good af. Using a SDR 12” in it. Before I used a Jensen 12” from Walmart and it also hit hard af in this box too

### ⭐⭐⭐⭐⭐ GREAT QUALITY BOX AT A LOW PRICE!
*by J***. on November 5, 2016*

I purchased the dual 12" sealed enclosure for my daughters Jeep Wrangler and installed 2 Rockford Fosgate P3 subwoofers in it. Powered by a Punch 1000x1d amp it sounded phenomenal! I was very surprised to see how well it was constructed. Built with 3/4 inch MDF all the way round, and lined with polyfilm. The carpet was nice and tight and seemed high quality. I use to build custom subwoofer boxes when I was a teen and have even been to some of the competitions in the IASCA circuit. This box is no joke, and if you can't build your own then I recommend this box, especially for the great price!

## Frequently Bought Together

- BELVA MDFD12 Dual 12-inch Car Subwoofer Box Sealed 3/4-inch MDF Prelined Polyfil
- Skar Audio RP-1200.1D Monoblock Class D MOSFET Amplifier with Remote Subwoofer Level Control, 1200W

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-10*