---
product_id: 310348937
title: "KICKER TRTP 8-inch (20cm) Thin Down Firing Subwoofer and Passive Radiator Enclosure, 2-Ohm, RoHS Compliant"
brand: "kicker"
price: "$724.55"
currency: USD
in_stock: true
reviews_count: 11
url: https://www.desertcart.us/products/310348937-kicker-trtp-8-inch-20cm-thin-down-firing-subwoofer-passive
store_origin: US
region: United States of America
---

# 8-inch thin down-firing subwoofer 600W max output with ReFLEX passive woofer 20% cooler forced-air CompRT cooling KICKER TRTP 8-inch (20cm) Thin Down Firing Subwoofer and Passive Radiator Enclosure, 2-Ohm, RoHS Compliant

**Brand:** kicker
**Price:** $724.55
**Availability:** ✅ In Stock

## Summary

> 🎵 Compact Powerhouse: Big Bass, Zero Bulk!

## Quick Answers

- **What is this?** KICKER TRTP 8-inch (20cm) Thin Down Firing Subwoofer and Passive Radiator Enclosure, 2-Ohm, RoHS Compliant by kicker
- **How much does it cost?** $724.55 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/310348937-kicker-trtp-8-inch-20cm-thin-down-firing-subwoofer-passive)

## 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

- • **Bass That Packs a Punch:** High-output ReFLEX passive radiator intensifies deep bass, delivering a sound experience that feels like a 12-inch subwoofer.
- • **Plug & Play Perfect Fit:** Designed to fit select cars and SUVs, including Lexus RX350 (2006-2009), mounting easily without sacrificing cargo space.
- • **Built Tough for the Road:** Internally braced wooden enclosure offers ultimate protection against vibrations and road bumps—bass that stays flawless.
- • **Sleek, Space-Savvy Design:** Ultra-compact 8-inch subwoofer fits seamlessly under seats or cargo areas—no more bulky bass boxes stealing your trunk space.
- • **Cooler, Longer-Lasting Performance:** CompRT forced-air cooling keeps your subwoofer 20% cooler, ensuring rock-solid reliability on every drive.

## Overview

The KICKER 48TRTP82 is an 8-inch thin down-firing subwoofer with a passive ReFLEX radiator, delivering up to 600 watts of powerful bass in a compact, space-saving enclosure. Featuring CompRT forced-air cooling for 20% cooler operation and an internally braced wooden enclosure for durability, it mounts easily in vehicle cargo areas or under seats. Perfect for car audio enthusiasts seeking deep, impactful bass without compromising space.

## Description

Buy KICKER 48TRTP82 TRTP 8-inch Thin Down Firing Subwoofer and Passive Radiator Enclosure, 2-Ohm: Component Subwoofers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Easy bass Best if you buy an amp with bass knob control - Buy these they sound like a 12” set!!!
Review: 2nd Gen Rx350 perfect fit - For anyone with a 2006-2009 lexus rx350, this is the perfect fit for the spare jack under floorboard of the trunk. You just have to remove the scissor jack and the black plastic holder, then this fits it tightly with plenty of room to add an amp. The 10 and 12 inch kicker down firing models do not fit unfortunately, but this still improves the stock sound by a lot

## Features

- Extremely Compact Design with Drivers Hidden, Becoming a Part of the Vehicle’s Makeup
- New CompRT Features Forced-Air Cooling - 20% Cooler for Increased Reliability
- High-Output ReFLEX Passive Woofer Intensifies Bass Output
- Internally Braced Enclosure Provides Ultimate Protection
- Easily Mounts in Cargo Area, with No Space Issues

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08NFHLB4T |
| Additional Features | compact |
| Antenna Location | vehicle audio |
| Audio Driver Size | 20 Centimeters |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Best Sellers Rank | #106,912 in Electronics ( See Top 100 in Electronics ) #567 in Car Component Subwoofers |
| Brand | KICKER |
| Built-In Media | passive reFLEX subwoofer, CompRT active sub |
| Color | black |
| Compatible Devices | Car Audio System, Aftermarket Head Unit |
| Compatible with Vehicle Type | & SUVs, Select Cars, Truck |
| Connectivity Protocol | wired |
| Connectivity Technology | Auxiliary, RCA |
| Control Method | App |
| Controller Type | Corded Electric |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.4 4.4 out of 5 stars (77) |
| Enclosure Material | Wood, Synthetic Fabric |
| Frequency Response | 500 Hz |
| Impedance | 2 Ohms |
| Is Waterproof | FALSE |
| Item Dimensions D x W x H | 13.1"D x 6"W x 24.3"H |
| Item Weight | 22.4 Pounds |
| MP3 player | No |
| Manufacturer | Kicker |
| Model Name | 48TRTP82 |
| Model Number | 48TRTP82 |
| Mounting Type | Under Seat/Cargo Area Mount |
| Number of Audio Channels | 2.0 |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Series Number | 82 |
| Speaker Maximum Output Power | 600 Watts |
| Speaker Size | 8 Inches |
| Speaker Type | Subwoofer |
| Specific Uses For Product | vehicle audio |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 8 Inches |
| UPC | 713034021230 |
| Unit Count | 1.0 Count |
| Warranty Description | 1-Year Manufacturer Warranty |
| Warranty Type | Limited |
| Wireless Technology | No Wireless Communication Technology |
| Woofer Diameter | 8 Inches |

## Product Details

- **Audio Output Mode:** Stereo
- **Brand:** KICKER
- **Connectivity Technology:** Auxiliary, RCA
- **Frequency Response:** 500 Hz
- **Speaker Maximum Output Power:** 600 Watts

## Images

![KICKER TRTP 8-inch (20cm) Thin Down Firing Subwoofer and Passive Radiator Enclosure, 2-Ohm, RoHS Compliant - Image 1](https://m.media-amazon.com/images/I/71kYI9RY-XL.jpg)

## Questions & Answers

**Q: RMS rating?**
A: 8” is 300w rms
10” is 400w rms
12” is 500w rms

**Q: Will the skar audio rp-1200.1d amp work well with the kicker trtp 8-inch (20cm) thin down firing subwoofer and passive radiator enclosure, 2-ohm?**
A: Running a 300w RMS subwoofer on a 1200.1 amp is a bad idea.

**Q: Will this product fit under the rear seat of a 08 f150 crew cab**
A: Yes

**Q: What’s the best amp to pair with this?**
A: I did kicker key 500.1

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy bass Best if you buy an amp with bass knob control
*by R***O on December 7, 2025*

Buy these they sound like a 12” set!!!

### ⭐⭐⭐⭐⭐ 2nd Gen Rx350 perfect fit
*by B***K on July 30, 2024*

For anyone with a 2006-2009 lexus rx350, this is the perfect fit for the spare jack under floorboard of the trunk. You just have to remove the scissor jack and the black plastic holder, then this fits it tightly with plenty of room to add an amp. The 10 and 12 inch kicker down firing models do not fit unfortunately, but this still improves the stock sound by a lot

### ⭐⭐⭐⭐⭐ Good option
*by D***E on July 9, 2025*

Well made. Good sound.

## Frequently Bought Together

- Kicker 48TRTP82 TRTP 8-inch Thin Down Firing Subwoofer and Passive Radiator Enclosure, 2-Ohm
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- BOSS Audio Systems KIT2 8 Gauge Complete Car Amplifier Installation Wiring Kit with Power Cables, Ground Cables, Turn-On Wire, Speaker Wire, Terminals

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-07*