---
product_id: 323276741
title: "In Phase USW12 Car Audio 600W 12\" Underseat Ultra Slim Compact Active Subwoofer System, Die-Cast Aluminium"
brand: "in phase"
price: "₨165051"
currency: LKR
in_stock: false
url: https://www.desertcart.lk/products/323276741-in-phase-usw12-car-audio-600w-12-underseat-ultra-slim
store_origin: LK
region: Sri Lanka
---

# Ultra-slim 5x16x5 cm compact design 600W max power output Die-cast aluminium durable chassis In Phase USW12 Car Audio 600W 12" Underseat Ultra Slim Compact Active Subwoofer System, Die-Cast Aluminium

**Brand:** in phase
**Price:** ₨165051
**Availability:** ❌ Out of Stock

## Summary

> 🎶 Feel the bass, not the bulk—compact power that moves you.

## Quick Answers

- **What is this?** In Phase USW12 Car Audio 600W 12" Underseat Ultra Slim Compact Active Subwoofer System, Die-Cast Aluminium by in phase
- **How much does it cost?** ₨165051 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/323276741-in-phase-usw12-car-audio-600w-12-underseat-ultra-slim)

## Best For

- in phase enthusiasts

## Why This Product

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

## Key Features

- • **Total Control:** Includes remote bass controller for on-the-fly tuning—tailor your bass vibe effortlessly.
- • **Sleek & Stealthy:** Ultra-slim 5x16x5 cm profile fits discreetly under seats or tight spaces—upgrade without compromise.
- • **Rugged Durability:** Die-cast aluminium chassis and aluminium cone ensure long-lasting, premium sound quality.
- • **Powerhouse Performance:** 600W built-in amplifier delivers deep, room-filling bass that transforms your drive.
- • **Universal Compatibility:** Works seamlessly with OEM and factory head units via RCA and high-level inputs.

## Overview

The In Phase USW12 is a 12-inch ultra-slim active subwoofer system featuring a 600W built-in amplifier and a durable die-cast aluminium chassis. Designed for discreet underseat installation, it offers versatile compatibility with both OEM and factory head units, complete with a remote bass controller for personalized sound tuning.

## Description

In Phase USW12 Car Audio 600W 12" Underseat Ultra Slim Compact Active Subwoofer System, Die-Cast Aluminium

## Features

- ALUMINIUM CONED SUBWOOFER - With a built in amplifier powering an aluminium coned subwoofer and a max output of 300W, the In Phase USW10 is a true pocket powerhouse of audio performance
- HEAVY DUTY DURABLE CONSTRUCTION - 6" Aluminium coned sub bass driver housed in a DieCast Aluminium chassis
- COMPACT AND DISCRETE - Allowing you to install the USW10 anywhere within your vehicles Boot, Underseat, behind seat and foot wells. Dimensions 270mm (D) x 65mm (H)
- REMOTE CONTROL - Bass remote included (5 meters)
- COMPTABILITY - RCA and High Level inputs (will work with both OEM and Factory Fitted head units).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Compatible devices | Personal Computer |
| Subwoofer diameter | 12 Inches |
| Controller type | Button, Remote Control |
| Surround-sound channel configuration | 2.0 |
| Colour | USW12 |
| Included components | USW12 Active Enclosure, Wiring Kit, Mounting Brackets, Remote Bass Controller, Instruction Manual |
| Product dimensions | 5D x 16W x 5H centimetres |
| Item weight | 4.6 Kilograms |
| Warranty type | Full |
| Manufacturer | In Phase |
| Item model number | USW12 |
| Manufacturer part number | USW12 |
| Special Features | Amplifier |
| Wattage | 600 watts |
| Item Weight | 4.6 kg |

## Product Details

- **Brand:** In Phase
- **Speaker maximum output power:** 600 Watts
- **Connectivity technology:** RCA
- **Audio output mode:** Stereo
- **Mounting type:** Tabletop
- **Material:** Aluminium
- **Model name:** USW12
- **Speaker type:** Subwoofer
- **Special feature:** Amplifier
- **Recommended uses for product:** Car

## Images

![In Phase USW12 Car Audio 600W 12" Underseat Ultra Slim Compact Active Subwoofer System, Die-Cast Aluminium - Image 1](https://m.media-amazon.com/images/I/61u0tjTkZEL.jpg)
![In Phase USW12 Car Audio 600W 12" Underseat Ultra Slim Compact Active Subwoofer System, Die-Cast Aluminium - Image 2](https://m.media-amazon.com/images/I/51Idu4g1ZRL.jpg)
![In Phase USW12 Car Audio 600W 12" Underseat Ultra Slim Compact Active Subwoofer System, Die-Cast Aluminium - Image 3](https://m.media-amazon.com/images/I/61F9utJvhmL.jpg)
![In Phase USW12 Car Audio 600W 12" Underseat Ultra Slim Compact Active Subwoofer System, Die-Cast Aluminium - Image 4](https://m.media-amazon.com/images/I/71SiSYMS+zL.jpg)
![In Phase USW12 Car Audio 600W 12" Underseat Ultra Slim Compact Active Subwoofer System, Die-Cast Aluminium - Image 5](https://m.media-amazon.com/images/I/61cw1HHlezL.jpg)

## Questions & Answers

**Q: What is the power cord called**
A: I don't really understand your question. All cables required are included in the box along with clear instructions.

**Q: I already have inphase 300w installed can i just plug this in and will it work with the same wires i already have installed**
A: I dont know but I imagine all in-phase have the same connections, however all wiring and instructions are included

## Frequently Bought Together

- In Phase USW12 Car Audio 600W 12" Underseat Ultra Slim Compact Active Subwoofer System, Die-Cast Aluminium
- CableMountain RCA Cables 3m - Gold Plated Male-to-Male Phono to Phono Cable | RCA Audio Cable for Amplifier, Turntable, TV, Home Theater, Speakers and HiFi Systems

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**Shop now:** [https://www.desertcart.lk/products/323276741-in-phase-usw12-car-audio-600w-12-underseat-ultra-slim](https://www.desertcart.lk/products/323276741-in-phase-usw12-car-audio-600w-12-underseat-ultra-slim)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-01-30*