---
product_id: 323536862
title: "Kicker KBRW12 (47KBRW12) 12\" Passive Radiator"
brand: "kicker"
price: "¥32291"
currency: JPY
in_stock: true
reviews_count: 6
category: "Kicker"
url: https://www.desertcart.jp/products/323536862-kicker-kbrw12-47kbrw12-12-passive-radiator
store_origin: JP
region: Japan
---

# Compact enclosure, no port needed Eliminates port noise 12" Passive Radiator for deep bass Kicker KBRW12 (47KBRW12) 12" Passive Radiator

**Brand:** kicker
**Price:** ¥32291
**Availability:** ✅ In Stock

## Summary

> 🎵 Unleash bass brilliance without the bulk—your custom sound’s secret weapon!

## Quick Answers

- **What is this?** Kicker KBRW12 (47KBRW12) 12" Passive Radiator by kicker
- **How much does it cost?** ¥32291 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/323536862-kicker-kbrw12-47kbrw12-12-passive-radiator)

## Best For

- kicker enthusiasts

## Why This Product

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

## Key Features

- • **Intense Bass Boost:** Experience a powerful 6dB output increase at 39Hz for that room-shaking low end.
- • **Space-Saving Design:** Fits perfectly in small custom enclosures—no bulky ports required, maximizing your setup’s sleekness.
- • **Port Noise Eliminated:** Enjoy crystal-clear bass without the annoying port turbulence or distortion.
- • **Marine-Ready Durability:** Built to withstand moisture and debris, perfect for adventurous sound systems on the go.
- • **Precision Woofer Control:** Better control of woofer excursion means tighter, cleaner bass response every time.

## Overview

The KBRW12 12" Passive Radiator by Kicker delivers intense, port-free bass enhancement designed for custom enclosures. It boosts low-frequency output by up to 6dB at 39Hz while eliminating port noise, fitting compact spaces without sacrificing sound quality. Ideal for car or marine audio setups, it offers durable construction and precise woofer control for a premium listening experience.

## Description

Component Reflex Passive Radiator for Intense Bass, Created for Custom Enclosures, Requires Very Small Box and no Port Needed, Eliminate Port Noise, Better Control Of Woofer Excursion

Review: Very poor quality - Not good as expected.
Review: I’m using a pair of 12s PRs with a pair of 10s on 1200W RMS. Roughly a 6db output increase at 39hz compared to my previous sealed setup with the same actives. Great option in a marine environment to give you ported output without the extra enclosure volume needed for a ported setup. Additionally prevents anything (water, bugs, etc) from getting into the enclosure- a bonus in a marine environment. The active 10s I’m using displace more air than what the 10” Kicker PRs could reliably handle and so the 12s were needed. That brings me to my ONLY gripe and that’s unfortunately the inability to add mass to tune them. My guess is that this was intentionally left out given they were probably designed around their loaded enclosures and selling them by themselves was more of an afterthought than anything. Given the right enclosure volume and active driver size one should be very pleased with the results if matched appropriately. They fortunately worked well for my build but keep in mind PRs are not just a cut and bolt solution to a current sealed enclosure. Overall though, very happy with, quality, output and durability. Done right, they provide a dramatic difference.

## Features

- 12" Passive Radiator
- Component Reflex Passive Radiator for Intense Bass
- Created for Custom Enclosures
- Requires Very Small Box and no Port Needed
- Eliminate Port Noise

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B084HL2L9T |
| Colour | Black |
| Compatible devices | Car / Truck |
| Control method | Touch |
| Included components | 12" Passive Radiator, (4) Adhesive backed screw covers, Owner's Manual |
| Is waterproof | FALSE |
| Item model number | KBRW12 (47KBRW12) |
| Item weight | 318 g |
| Manufacturer | Kicker |
| Material | Plastic or composite material |
| Model name | 47KBRW12 |
| Number of Items | 1 |
| Power source | Corded Electric |
| Product dimensions | 17.8D x 53.3W x 30.5H centimeters |
| Recommended uses for product | for surround sound systems |
| Speaker size | 12 Inches |
| Speaker type | Subwoofer |
| Special features | Bass ReFLEX™ Passive Radiators, 8-inch Box|49Hz, 10-inch Box|41Hz, 12-inch Box|34Hz |
| Subwoofer diameter | 12 Inches |
| Surround sound channel configuration | 5.1 |
| Unit count | 1.0 Count |
| Wireless communication technologies | Bluetooth |

## Product Details

- **Audio output mode:** Stereo
- **Brand:** KICKER
- **Connectivity technology:** Bluetooth
- **Frequency response:** 34 Hz
- **Mounting type:** Flush Mount

## Images

![Kicker KBRW12 (47KBRW12) 12" Passive Radiator - Image 1](https://m.media-amazon.com/images/I/61RTZ9MiyjL.jpg)
![Kicker KBRW12 (47KBRW12) 12" Passive Radiator - Image 2](https://m.media-amazon.com/images/I/715-McsaQmL.jpg)
![Kicker KBRW12 (47KBRW12) 12" Passive Radiator - Image 3](https://m.media-amazon.com/images/I/71Se2uDl3jL.jpg)
![Kicker KBRW12 (47KBRW12) 12" Passive Radiator - Image 4](https://m.media-amazon.com/images/I/71WiIctP74L.jpg)

## Customer Reviews

### ⭐ Very poor quality
*by E***M on 17 September 2023*

Not good as expected.

### ⭐⭐⭐⭐⭐ Review
*by N***C on 11 August 2024*

I’m using a pair of 12s PRs with a pair of 10s on 1200W RMS. Roughly a 6db output increase at 39hz compared to my previous sealed setup with the same actives. Great option in a marine environment to give you ported output without the extra enclosure volume needed for a ported setup. Additionally prevents anything (water, bugs, etc) from getting into the enclosure- a bonus in a marine environment. The active 10s I’m using displace more air than what the 10” Kicker PRs could reliably handle and so the 12s were needed. That brings me to my ONLY gripe and that’s unfortunately the inability to add mass to tune them. My guess is that this was intentionally left out given they were probably designed around their loaded enclosures and selling them by themselves was more of an afterthought than anything. Given the right enclosure volume and active driver size one should be very pleased with the results if matched appropriately. They fortunately worked well for my build but keep in mind PRs are not just a cut and bolt solution to a current sealed enclosure. Overall though, very happy with, quality, output and durability. Done right, they provide a dramatic difference.

### ⭐⭐⭐⭐⭐ Review
*by M***E on 24 August 2025*

Quick delivery. Good product.

## Frequently Bought Together

- Kicker KBRW12 (47KBRW12) 12" Passive Radiator
- Kicker 48CWRT124 CompRT 12" Subwoofer, DVC, 4-ohm

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-26*