---
product_id: 51559823
title: "Rockford Fosgate RM18D4B 20 Marine Outdoor Boat Subwooer Chassis Black"
brand: "rockford fosgate"
price: "10211CFA"
currency: XOF
in_stock: false
url: https://www.desertcart.sn/products/51559823-rockford-fosgate-rm18d4b-20-marine-outdoor-boat-subwooer-chassis-black
store_origin: SN
region: Senegal
---

# Rockford Fosgate RM18D4B 20 Marine Outdoor Boat Subwooer Chassis Black

**Brand:** rockford fosgate
**Price:** 10211CFA
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** Rockford Fosgate RM18D4B 20 Marine Outdoor Boat Subwooer Chassis Black by rockford fosgate
- **How much does it cost?** 10211CFA with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/51559823-rockford-fosgate-rm18d4b-20-marine-outdoor-boat-subwooer-chassis-black)

## Best For

- rockford fosgate enthusiasts

## Why This Product

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

## Description

Rockford Fosgate RM18D4B – Black It's 20 cm Subwoofer Chassis with weatherproof membrane has been specially designed for outdoor use (e.g.. Garden, Camping, etc) or in humid environments (e.g.. Bathroom, Sauna, boat, etc.) Sealed Magnetic systems with optimum protection against moisture and mechanical influences Sealed solder connection UV resistant mesh grill peak power handling: 500 watts nominal power handling: 250 watts Impedance: 2 x 4 & # X3 A9; (Dual Voice Coil) installation depth: 92 mm Installation opening 177 mm

## Features

- About this item
- ROCKFORD FOSGATE RM18D4B – Black
- Water protected 20 cm subwoofer chassis with weatherproof membrane
- Specially developed for outdoor use (e.g. Garden, Camping, etc.) or in humid environments (e.g.. Bath, Sauna, boot etc.)
- Peak Power: 500 Watt/Power Rating: 250 watts
- Impedance: 2 x 4 & # x3 A9; Dual Voice Coil)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00WTMYEAE |
| Brand | Rockford |
| Customer Reviews | 4.2 4.2 out of 5 stars (6) |
| Global Trade Identification Number | 00780687345402 |
| Impedance | 4 ohm |
| Is Waterproof | TRUE |
| Item Weight | 3 pounds |
| Manufacturer | Rockford Fosgate |
| Model Name | RM18D4B |
| Model Number | RM18D4B |
| Mounting Type | Boat Mount |
| Number of Audio Channels | 2 |
| Power Source | Corded Electric |
| Speaker Maximum Output Power | 500 watts |
| Speaker Size | 8 inches |
| Speaker Type | Subwoofer, Woofer |
| Subwoofer Diameter | 8 inches |
| UPC | 426899543600 780687345402 |

## Product Details

- **Brand:** Rockford
- **Model Name:** RM18D4B
- **Mounting Type:** Boat Mount
- **Speaker Maximum Output Power:** 500 watts
- **Speaker Type:** Subwoofer, Woofer

## Images

![Rockford Fosgate RM18D4B 20 Marine Outdoor Boat Subwooer Chassis Black - Image 1](https://images-na.ssl-images-amazon.com/images/I/614X7eSr5OL.jpg)
![Rockford Fosgate RM18D4B 20 Marine Outdoor Boat Subwooer Chassis Black - Image 2](https://images-na.ssl-images-amazon.com/images/I/61CbTjBACJL.jpg)
![Rockford Fosgate RM18D4B 20 Marine Outdoor Boat Subwooer Chassis Black - Image 3](https://images-na.ssl-images-amazon.com/images/I/61cd7qbp4UL.jpg)
![Rockford Fosgate RM18D4B 20 Marine Outdoor Boat Subwooer Chassis Black - Image 4](https://images-na.ssl-images-amazon.com/images/I/613lYvoNp5L.jpg)
![Rockford Fosgate RM18D4B 20 Marine Outdoor Boat Subwooer Chassis Black - Image 5](https://images-na.ssl-images-amazon.com/images/I/617WUAooOUL.jpg)

---

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**Shop now:** [https://www.desertcart.sn/products/51559823-rockford-fosgate-rm18d4b-20-marine-outdoor-boat-subwooer-chassis-black](https://www.desertcart.sn/products/51559823-rockford-fosgate-rm18d4b-20-marine-outdoor-boat-subwooer-chassis-black)

---

*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-09-15*