---
product_id: 112115025
title: "Alpine SWT-12S4 1500W Max (300W RMS) Single 12\" Sealed Subwoofer Tube Enclosure"
brand: "alpine"
price: "439109CFA"
currency: XOF
in_stock: false
reviews_count: 13
url: https://www.desertcart.sn/products/112115025-alpine-swt-12s4-1500w-max-300w-rms-single-12-sealed
store_origin: SN
region: Senegal
---

# 12-inch Dynamic Driver 1500W Max Power Boost Sealed Tube Enclosure for Deep Bass Alpine SWT-12S4 1500W Max (300W RMS) Single 12" Sealed Subwoofer Tube Enclosure

**Brand:** alpine
**Price:** 439109CFA
**Availability:** ❌ Out of Stock

## Summary

> 🎵 Feel the bass, own the road — Alpine SWT-12S4 turns every drive into a concert.

## Quick Answers

- **What is this?** Alpine SWT-12S4 1500W Max (300W RMS) Single 12" Sealed Subwoofer Tube Enclosure by alpine
- **How much does it cost?** 439109CFA with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/112115025-alpine-swt-12s4-1500w-max-300w-rms-single-12-sealed)

## Best For

- alpine enthusiasts

## Why This Product

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

## Key Features

- • **Plug & Play Ready:** Includes installation brackets and belts for a hassle-free setup—upgrade your ride’s sound in no time.
- • **Power That Moves You:** Delivers up to 1500W max power for earth-shaking bass that commands attention on every drive.
- • **Seamless Connectivity:** Bluetooth-enabled with voice control for effortless, hands-free bass management on the go.
- • **Durability Meets Style:** Heavy-duty subwoofer grill protects your investment while adding a sleek, professional look to your car interior.
- • **Precision Bass Control:** Sealed enclosure design enhances bass clarity and punch, perfect for audiophiles craving tight, controlled lows.

## Overview

The Alpine SWT-12S4 is a powerful 12-inch sealed subwoofer tube enclosure delivering up to 1500W max power (300W RMS). Designed for car audio enthusiasts, it features a dynamic driver, heavy-duty grill, and easy installation hardware. Bluetooth connectivity and voice control add modern convenience, making it a top-tier choice for upgrading factory sound systems with deep, precise bass.

## Description

Alpine SWT-12S4 1500W Max (300W RMS) Single 12" Sealed Subwoofer Tube Enclosure

Review: For Deep Not Fast Bass - I bought my 12" Alpine sub for VW Passat. First was 8" 150W one :-( Alpine Fits perfectly with extra room left in any dimention. Quick easy connection with banana plugs. In my case plugs not so secure in place. Had disconnection issue. Always mount and secure sub to the floor before use. Do not let it roll in the trunk for max performance. Or operating at all lol Sub very boomy on max. I would recomment installation of Bass knob too for volume adjustment. Tube subs Not situable for quick bass. Like in Techno music. Pop music sounds wonderfull. Bass Very deep and enjoyfull with right music.
Review: Feel your insides shake with this sub! - This thing hits hard. I have it hooked up to a Rockville that pushes 360 watts rms. I tuned the amp to the subwoofer and when the bass drops you feel your insides shaking and it almost takes your breath away! My windshield shakes so hard my rearview mirror won't stay in position! I do have the gain turned down on my amp slightly to match the recommended rms watts of the subwoofer. For the price and the quality of sound I would definitely recommend to friends, family and neighbors or anyone else asking "WHAT DO YOU HAVE IN THERE?!"

## Features

- 1500W Max Single 12-inch sealed subwoofer is perfect for maximizing bass
- Reinforces overall bass output
- Helps to channel sound and improve performance
- Includes installation brackets and belts
- Features a heavy-duty subwoofer grill

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07MXND918 |
| Additional Features | Bass Boost |
| Age Range Description | Adult |
| Antenna Location | Improving Bass Response in Car Audio Systems, Upgrading Factory Car Speakers for Enhanced Sound Quality |
| Audio Driver Size | 12 inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Best Sellers Rank | #423,768 in Electronics ( See Top 100 in Electronics ) #1,137 in Car Subwoofer Boxes & Enclosures |
| Bluetooth Range | 10 meters |
| Brand | Alpine |
| Built-In Media | Installation Brackets and Belts, Heavy Duty Subwoofer Grill |
| Color | black |
| Compatible Devices | Car audio systems |
| Compatible with Vehicle Type | Car |
| Connectivity Protocol | Bluetooth |
| Connectivity Technology | Bluetooth |
| Control Method | Touch |
| Controller Type | Voice control |
| Customer Package Type | Standard Box |
| Customer Reviews | 4.5 out of 5 stars 286 Reviews |
| Enclosure Material | Metal, Plastic |
| Frequency Response | 28 hertz |
| Impedance | 4 ohm |
| Is Waterproof | FALSE |
| Item Dimensions D x W x H | 12.75"D x 26"W x 12.75"H |
| Item Weight | 25 g |
| Manufacturer | Alpine |
| Model Name | SWT-12S4 |
| Model Number | SWT-12S4 |
| Mounting Type | Floor Standing, Tabletop Mount |
| Number Of Circuits | 1 |
| Number of Audio Channels | 1 |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Processor Count | 1 |
| Speaker Maximum Output Power | 1000 watts |
| Speaker Size | 12 inches |
| Speaker Type | Subwoofer |
| Specific Uses For Product | in-car audio systems, home entertainment systems, outdoor/portable audio setups |
| Subwoofer Connectivity Technology | Wireless |
| Subwoofer Diameter | 12 inches |
| Tweeter Diameter | 12 inches |
| UPC | 793276242525 |
| Unit Count | 1 Count |
| Warranty Type | Limited |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology | Bluetooth |
| Woofer Diameter | 12 inches |

## Product Details

- **Audio Output Mode:** Stereo
- **Brand:** Alpine
- **Connectivity Technology:** Bluetooth
- **Frequency Response:** 28 hertz
- **Speaker Maximum Output Power:** 1000 watts

## Images

![Alpine SWT-12S4 1500W Max (300W RMS) Single 12" Sealed Subwoofer Tube Enclosure - Image 1](https://m.media-amazon.com/images/I/51oquWDcjyL.jpg)
![Alpine SWT-12S4 1500W Max (300W RMS) Single 12" Sealed Subwoofer Tube Enclosure - Image 2](https://m.media-amazon.com/images/I/61miN9l+sfL.jpg)

## Questions & Answers

**Q: Is an amp needed with this or is there one preinstalled?**
A: You will need an amp. I have an Autotek 1500 class D. A bet overpowered but gains and crossover set right. Sounds pretty good, yet struggles at super low notes. I plan on upgrading the sub later. Good build, solid.

**Q: Is that a port I see in the image?**
A: Exactly what I saw.. ported in picture but sealed in listing. They need to get it together

**Q: What do you mean by fast bass?**
A: It doesn’t have to wait to warm up the voice coil

**Q: Is a kenwood xr601-1 excelon 600-watt monoblock rated at 400 watts rms at 4 ohms single to much amp for this subwoofer?**
A: Nope...I have that much power and still believe it can handle more

## Customer Reviews

### ⭐⭐⭐⭐⭐ For Deep Not Fast Bass
*by N***S on February 18, 2021*

I bought my 12" Alpine sub for VW Passat. First was 8" 150W one :-( Alpine Fits perfectly with extra room left in any dimention. Quick easy connection with banana plugs. In my case plugs not so secure in place. Had disconnection issue. Always mount and secure sub to the floor before use. Do not let it roll in the trunk for max performance. Or operating at all lol Sub very boomy on max. I would recomment installation of Bass knob too for volume adjustment. Tube subs Not situable for quick bass. Like in Techno music. Pop music sounds wonderfull. Bass Very deep and enjoyfull with right music.

### ⭐⭐⭐⭐⭐ Feel your insides shake with this sub!
*by B***. on July 15, 2021*

This thing hits hard. I have it hooked up to a Rockville that pushes 360 watts rms. I tuned the amp to the subwoofer and when the bass drops you feel your insides shaking and it almost takes your breath away! My windshield shakes so hard my rearview mirror won't stay in position! I do have the gain turned down on my amp slightly to match the recommended rms watts of the subwoofer. For the price and the quality of sound I would definitely recommend to friends, family and neighbors or anyone else asking "WHAT DO YOU HAVE IN THERE?!"

### ⭐⭐⭐⭐⭐ Wow! This tube is amazing! Way to go Alpine!
*by F***Z on April 18, 2019*

Perfect fit in the opening behind the rear seat in my 2013 Fort Taurus. The bass response is amazing, pushed by a 300 watts (bridged) amp. I had a 12” Rockford Fosgate sub in a shallow box (see picture), and it was weak and a disappointing. The Alpine 12” sub is amazingand a great deep pounding bass experience. Update: Oct 2021; Sold the Taurus, so I transferred the same setup to my 2016 Toyota Avalon. Fits perfect and still sounds amazing.

## Frequently Bought Together

- Alpine SWT-12S4 1500W Max (300W RMS) Single 12" Sealed Subwoofer Tube Enclosure
- Skar Audio 4 Gauge Amplifier Wiring Kit - Blue, Copper Clad Aluminum, SKAR4ANL-CCA
- Alpine S-A60M S-Series Class D Mono Amplifier

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