---
product_id: 336827734
title: "SWT-12S4 1500W Max (300W RMS) Single 12\" Sealed Subwoofer Tube Enclosure"
brand: "alpine"
price: "€ 540.27"
currency: EUR
in_stock: true
category: "Alpine"
url: https://www.desertcart.hr/products/336827734-swt-12s4-1500w-max-300w-rms-single-12-sealed-subwoofer
store_origin: HR
region: Croatia
---

# 28-200Hz Frequency Response 12-inch Driver Size 1500W Max Power SWT-12S4 1500W Max (300W RMS) Single 12" Sealed Subwoofer Tube Enclosure

**Brand:** alpine
**Price:** € 540.27
**Availability:** ✅ In Stock

## Summary

> 🎵 Feel the Power, Own the Road with Alpine Bass Mastery!

## Quick Answers

- **What is this?** SWT-12S4 1500W Max (300W RMS) Single 12" Sealed Subwoofer Tube Enclosure by alpine
- **How much does it cost?** € 540.27 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/336827734-swt-12s4-1500w-max-300w-rms-single-12-sealed-subwoofer)

## 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

- • **Durable & Stylish:** Heavy-duty grill and sleek black carpet finish with Alpine’s iconic logo for a premium look that stands out.
- • **Sealed Tube Enclosure:** Designed to reinforce bass output and channel sound for maximum performance without distortion.
- • **Plug & Play Installation:** Includes sturdy brackets and belts for a secure, hassle-free setup that fits perfectly in your vehicle.
- • **Precision-Tuned 12" Driver:** Engineered for optimal sound clarity and punch, delivering immersive low frequencies every time.
- • **Booming Bass, No Compromise:** Unleash deep, rich bass with 1500W peak power that transforms your car audio experience.

## Overview

The Alpine SWT-12S4 is a high-performance 12-inch sealed subwoofer tube enclosure delivering up to 1500W peak power and 300W RMS. With a frequency response of 28-200Hz and 4Ω impedance, it offers deep, precise bass ideal for car audio enthusiasts seeking a premium sound upgrade. Featuring a rugged design with included installation hardware and a heavy-duty grill, it ensures both durability and easy integration into your vehicle’s sound system.

## Description

1500W Max Single 12" Sealed Subwoofer Tube Enclosure 12” (30cm) High-Performance Subwoofer Peak Power: 1500W RMS Power: 300W Overall Dimensions 12.75” x 26” Frequency Response 28-200Hz Speaker Impedance: 4 Ω Sensitivity: 92dB/W (1m) Stitched Alpine Logo Included Installation Brackets and Belts Heavy Duty Subwoofer Grill Subwoofer Features: 12" Passive Subwoofer Push SPK Terminal Voice coil size/type Sensitivity: 92dB Enclosure Features: Tube enclosure Black Carpet Finish with White Alpine Logo Grille included

## 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 | High-Performance Tube Enclosure, Heavy-Duty Grill, Included Installation Brackets and Belts |
| Antenna Location | For Televisions |
| Audio Driver Size | 12 Inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Surround |
| Best Sellers Rank | #33,655 in Electronics ( See Top 100 in Electronics ) #169 in Car Audio Speakers & Subwoofers |
| Bluetooth Range | 10 Meters |
| Brand | Alpine |
| Built-In Media | Installation Brackets and Belts |
| Color | black |
| Compatible Devices | Laptop, Smartphone, Tablet |
| Compatible with Vehicle Type | Car, Other Vehicles |
| Connectivity Protocol | Bluetooth |
| Connectivity Technology | Bluetooth, Wired |
| Control Method | Touch |
| Controller Type | Button Control, Voice Control |
| Customer Package Type | FFP |
| Customer Reviews | 4.5 4.5 out of 5 stars (274) |
| EU Spare Part Availability Duration | 7 Years |
| Enclosure Material | Carpet, Metal, Paper/Polypropylene, Rubber/Foam |
| Frequency Response | 28 Hz |
| Impedance | 4 Ohms |
| Is Waterproof | False |
| Item Dimensions D x W x H | 32.4D x 66W x 32.4H centimeters |
| Item Weight | 25 Grams |
| MP3 player | No |
| Manufacturer | Alpine |
| Model Name | SWT-12S4 |
| Model Number | SWT-12S4 |
| Mounting Type | Tabletop |
| Number Of Circuits | 1 |
| Number of Audio Channels | 1.0 |
| 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 | Home entertainment systems |
| Subwoofer Connectivity Technology | Wireless |
| Subwoofer Diameter | 12 Inches |
| Tweeter Diameter | 12 Inches |
| UPC | 793276242525 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology | Bluetooth |
| Woofer Diameter | 12 Inches |

## Product Details

- **Audio output mode:** Surround
- **Brand:** Alpine
- **Connectivity technology:** Bluetooth, Wired
- **Frequency response:** 28 Hz
- **Speaker maximum output power:** 1000 Watts

## Images

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

## 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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**Shop now:** [https://www.desertcart.hr/products/336827734-swt-12s4-1500w-max-300w-rms-single-12-sealed-subwoofer](https://www.desertcart.hr/products/336827734-swt-12s4-1500w-max-300w-rms-single-12-sealed-subwoofer)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-24*