---
product_id: 369195830
title: "MTXAUDIO RTP8A 8\" 120W Car Loaded Subwoofer Enclosure Amplified Box Vented"
brand: "mtx"
price: "¥81817"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/369195830-mtxaudio-rtp8a-8-120w-car-loaded-subwoofer-enclosure-amplified-box
store_origin: JP
region: Japan
---

# 8" High-Performance Subwoofer 13" x 13" x 13.75" 120W RMS Power MTXAUDIO RTP8A 8" 120W Car Loaded Subwoofer Enclosure Amplified Box Vented

**Brand:** mtx
**Price:** ¥81817
**Availability:** ✅ In Stock

## Summary

> 🎉 Feel the Beat, Own the Road!

## Quick Answers

- **What is this?** MTXAUDIO RTP8A 8" 120W Car Loaded Subwoofer Enclosure Amplified Box Vented by mtx
- **How much does it cost?** ¥81817 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/369195830-mtxaudio-rtp8a-8-120w-car-loaded-subwoofer-enclosure-amplified-box)

## Best For

- mtx enthusiasts

## Why This Product

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

## Key Features

- • **Perfect Fit:** Compact dimensions (13" x 13" x 13.75") designed to fit seamlessly in your vehicle.
- • **Unleash the Bass:** Experience booming sound with a built-in 120W RMS amplifier.
- • **Elevate Your Ride:** Transform your car audio experience with deep, rich bass that turns heads.
- • **Versatile Connectivity:** Compatible with both high-level and RCA inputs for easy installation.
- • **Control at Your Fingertips:** Includes an external bass control knob for on-the-go adjustments.

## Overview

The MTXAUDIO RTP8A is an 8-inch car loaded subwoofer enclosure featuring a powerful 120W RMS amplifier, designed to deliver high-performance sound in a compact, vented box. With versatile input options and an external bass control knob, this subwoofer is perfect for enhancing your car audio experience.

## Description

MTXAUDIO RTP8A 8" 120W Car Loaded Subwoofer Enclosure Amplified Box Vented

## Features

- WILL IT FIT MY CAR? Dimensions: Height 13", Width 13", Depth 13.75"
- AMPLIFIED - Built-in 120 Watts RMS Amplifier
- 8" High Performance Subwoofer in a vented enclosure
- Versatile: Takes High Level or RCA Inputs
- INCLUDES - External Bass Control Knob

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Speaker Size | 7.87 Inches |
| Woofer Diameter | 8 Inches |
| Specific Uses For Product | Music in car |
| Controller Type | bass control |
| Is Waterproof | FALSE |
| Warranty Type | Limited |
| Control Method | Remote |
| Audio Output Mode | Stereo |
| Mounting Type | Car Mount |
| Speaker Type | Car Subwoofer |
| Additional Features | Bass Boost, Durable |
| Recommended Uses For Product | Music |
| Subwoofer Diameter | 8 Inches |
| Item Weight | 17.2 Pounds |
| Item Dimensions D x W x H | 13.75"D x 13"W x 13"H |
| Power Source | Corded Electric |
| Number of Power Levels | 1 |
| Speaker Maximum Output Power | 120 Watts |
| Compatible with Vehicle Type | Car |
| Compatible Devices | Car Stereos |
| Subwoofer Connectivity Technology | Wired |
| Connectivity Technology | RCA |
| Audio Driver Size | 8 Inches |
| Audio Driver Type | Dynamic Driver |

## Product Details

- **Brand:** MTX
- **Speaker maximum output power:** 120 Watts
- **Connectivity technology:** RCA
- **Audio output mode:** Stereo
- **Mounting type:** Trunk Mount,Car Mount

## Images

![MTXAUDIO RTP8A 8" 120W Car Loaded Subwoofer Enclosure Amplified Box Vented - Image 1](https://m.media-amazon.com/images/I/81Dc447n8ZL.jpg)
![MTXAUDIO RTP8A 8" 120W Car Loaded Subwoofer Enclosure Amplified Box Vented - Image 2](https://m.media-amazon.com/images/I/81fEjHmthqL.jpg)
![MTXAUDIO RTP8A 8" 120W Car Loaded Subwoofer Enclosure Amplified Box Vented - Image 3](https://m.media-amazon.com/images/I/81t4EgJdMxL.jpg)
![MTXAUDIO RTP8A 8" 120W Car Loaded Subwoofer Enclosure Amplified Box Vented - Image 4](https://m.media-amazon.com/images/I/81V7gwBhUgL.jpg)
![MTXAUDIO RTP8A 8" 120W Car Loaded Subwoofer Enclosure Amplified Box Vented - Image 5](https://m.media-amazon.com/images/I/51HVglRfpzL.jpg)

## Questions & Answers

**Q: Will this fit behind a 3rd row seat in an Expediton?**
A: not sure, had to return wasn't worth it. Bought a Rockford Fosgate

**Q: What is the nominal/peak wattage of this 8"?**
A: Not even 100 watts output was terrible.  Returned it because it overheated

**Q: do i need to run a power supply from my battery for this unit**
A: SoundsGreatUSA Says: YES. That would be the best place to connect the battery wire from your amplifier.

**Q: Does it come with the hi input wires for the amp**
A: Nope

## Frequently Bought Together

- MTX AUDIO RTP8A 8" 120W Car Loaded Subwoofer Enclosure Amplified Box Vented
- 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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**Shop now:** [https://www.desertcart.jp/products/369195830-mtxaudio-rtp8a-8-120w-car-loaded-subwoofer-enclosure-amplified-box](https://www.desertcart.jp/products/369195830-mtxaudio-rtp8a-8-120w-car-loaded-subwoofer-enclosure-amplified-box)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-02*