---
product_id: 49496182
title: "SWT-12S4 Car Speakers, Black"
brand: "alpine"
price: "HK$5535"
currency: HKD
in_stock: true
reviews_count: 13
category: "Alpine"
url: https://www.desertcart.hk/products/49496182-swt-12s4-car-speakers-black
store_origin: HK
region: Hong Kong
---

# 92 dB sensitivity for crisp bass 12-inch (30cm) subwoofer size 1000W peak power SWT-12S4 Car Speakers, Black

**Brand:** alpine
**Price:** HK$5535
**Availability:** ✅ In Stock

## Summary

> 🎵 Feel the bass, flex the vibe — your car’s new heartbeat!

## Quick Answers

- **What is this?** SWT-12S4 Car Speakers, Black by alpine
- **How much does it cost?** HK$5535 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/49496182-swt-12s4-car-speakers-black)

## 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

- • **Powerful Bass Impact:** Unleash deep, room-shaking lows with 1000W peak power that commands attention on every drive.
- • **Effortless Integration:** Plug-and-play design with 4 Ohm impedance ensures compatibility with most car audio systems for instant upgrade.
- • **Durable & Ready to Install:** Comes with robust mounting brackets and protective grille to keep your subwoofer safe and secure on the road.
- • **Precision Bass Reflex Design:** Bass reflex tube technology delivers tight, punchy bass with minimal distortion for audiophile-grade sound.
- • **Perfectly Sized 12-Inch Woofer:** Engineered for optimal bass response, this 12-inch subwoofer fits seamlessly in your car setup.

## Overview

The Alpine SWT-12S4 is a 12-inch bass reflex subwoofer tube designed for car audio enthusiasts seeking powerful, clear bass. With a peak power of 1000 watts and 92 dB sensitivity, it delivers deep, punchy lows while its durable construction and included mounting hardware make installation straightforward. Perfect for millennials who want to elevate their driving soundtrack and stand out with premium sound performance.

## Description

Alpine SWT-12S4 - 30cm Subwoofer Rolle Röhre Bassrolle 30 cm (12-Zoll) Bass Reflex Subwoofer Rolle (4 Ohm) - SWT-12S4 Mit 1000 Watt Max. Belastbarkeit ist diese ready-to-use Bassreflex-Subwoofer-Rolle genau das Richtige für große Bass-Fans. EinSchutzgitter sorgt dafür, dass nichts im Kofferraum den Woofer beschädigen kann. AUSSTATTUNG Woofer System: Bass Reflex Typ30 cm (12-Zoll) High-Performance SubwooferMax. Leistung: 1000 WattRMS Leistung: 300 WattAbmessung: Ø 324 x 660 mmFrequenzbereich: 28 - 200 HzLautsprecher Impedanz: 4 ?Wirkungsgrad: 92 dB/W (1m)Gesticktes Alpine LogoInklusive Montage Halterungen und BefestigungsbandSehr stabile Subwooferabdeckung

Review: 12” alpine sub - At first I thought this will not sound the best, after connecting it in the house for a couple weeks slowly breaking it in I put this in the car and my oh my this sounds brilliant, built strong and the bass punch and lows are great; don’t listen to others saying it’s no good, it’s not a competition sub but believe me will rock your car and flex your panels :)
Review: Good stuff - Don’t know what to say They are just perfect and loud as required Boys if you need them in your car Go for it ! Easy to setup

## Features

- Ready to use Bass Reflex Subwoofer Tube
- 12“ (30cm) Bass Reflex Subwoofer Tube (4Ohm)
- 1000W peak power
- Included components: car subwoofer

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00H99ZZFA |
| Age Range Description | Adult |
| Antenna Location | Car |
| Audio Driver Size | 12 Inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Audio output mode | Stereo |
| Best Sellers Rank | 61,774 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 29 in Car Component Subwoofers |
| Box Contents | Alpine SWT-12S4 Subwoofer |
| Brand | Alpine |
| Brand Name | Alpine |
| Colour | Black |
| Compatible Devices | Mobile Phone, Tablet, Car Audio System |
| Compatible with Vehicle Type | Car |
| Connectivity Protocol | Bluetooth |
| Connectivity technology | Bluetooth |
| Control Method | Remote |
| Controller Type | Remote Control |
| Customer Package Type | FFP |
| Customer Reviews | 4.6 out of 5 stars 668 Reviews |
| EU Spare Part Availability Duration | 7 Years |
| Enclosure Material | Polycarbonate (PC) |
| Frequency Response | 28 Hz |
| Frequency response | 28 Hz |
| Global Trade Identification Number | 04958043543946 |
| Is Electric | No |
| Is Waterproof | false |
| Item Dimensions D x W x H | 3.9D x 5.9W x 3.9H centimetres |
| Item Type Name | 1000W 12" Ready To Use Bass Reflex Subwoofer Tube, 4Ohm |
| Item Weight | 500 Grams |
| MP3 player | No |
| Manufacturer | Alpine |
| Maximum Speaker Output Power (in watts) | 1000 Watts |
| Model Name | SWT-12S |
| Model Number | SWT-12S4 |
| Mounting Type | Tabletop |
| Mounting type | Tabletop |
| Network Connectivity Technology | Bluetooth |
| Number Of Circuits | 1 |
| Number of Audio Channels | 1.0 |
| Number of Items | 1 |
| Number of Power Levels | 1 |
| Power Source | Corded Electric |
| Product Features | Für Auto |
| Product Warranty | 2 years |
| Signal-to-Noise Ratio | 92 dB |
| Speaker Size | 12 Inches |
| Speaker Type | Woofer |
| Speaker maximum output power | 1000 Watts |
| Specific Uses For Product | Car |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Speaker Diameter | 12 Inches |
| Total USB 2.0 Ports | 1 |
| Tweeter Diameter | 12 Inches |
| Warranty Type | Limited |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology Type | Bluetooth |
| Woofer Driver Diameter | 12 Inches |

## Product Details

- **Audio output mode:** Stereo
- **Brand:** Alpine
- **Connectivity technology:** Bluetooth
- **Frequency response:** 28 Hz
- **Material:** Polycarbonate (PC)
- **Model name:** SWT-12S
- **Mounting type:** Tabletop
- **Speaker maximum output power:** 1000 Watts
- **Speaker type:** Woofer
- **Special feature:** Für Auto

## Images

![SWT-12S4 Car Speakers, Black - Image 1](https://m.media-amazon.com/images/I/614cDf79CRL.jpg)
![SWT-12S4 Car Speakers, Black - Image 2](https://m.media-amazon.com/images/I/71klreARFbL.jpg)

## Questions & Answers

**Q: What’s the actual measurements for this? In need of a sub but limited space in me boot**
A: 660mm x 324mm

**Q: how do you fix it so it doesnt roll around in the car**
A: Hi, I have estate car, so I use net to fix speaker, because sometimes I have to remove it, (net from boot) looking really good

**Q: How much does it weigh?**
A: Weighs about 5-6kilo

**Q: This.dose.come.with fitting.kit to.fit.in boot ?**
A: Yeah straps but they’re not great you have to get them tight

## Customer Reviews

### ⭐⭐⭐⭐⭐ 12” alpine sub
*by B***Y on 17 August 2025*

At first I thought this will not sound the best, after connecting it in the house for a couple weeks slowly breaking it in I put this in the car and my oh my this sounds brilliant, built strong and the bass punch and lows are great; don’t listen to others saying it’s no good, it’s not a competition sub but believe me will rock your car and flex your panels :)

### ⭐⭐⭐⭐⭐ Good stuff
*by I***H on 6 April 2026*

Don’t know what to say They are just perfect and loud as required Boys if you need them in your car Go for it ! Easy to setup

### ⭐⭐⭐⭐⭐ Amazing sound
*by C***U on 14 March 2025*



## Frequently Bought Together

- Alpine SWT-12S4 Car Speakers, Black
- VIBE Audio Slick 2000 W System Car Wiring Kit
- Alpine Electronics 4 Channel Amplifier

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**Shop now:** [https://www.desertcart.hk/products/49496182-swt-12s4-car-speakers-black](https://www.desertcart.hk/products/49496182-swt-12s4-car-speakers-black)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-07-03*