---
product_id: 637699334
title: "Alpine S2-A120M S-Series Class-D Mono Subwoofer Amplifier, Hi-Res Certified, 1200W RMS at 1 & 2-Ohm"
brand: "alpine"
price: "₨515797"
currency: LKR
in_stock: true
reviews_count: 5
category: "Alpine"
url: https://www.desertcart.lk/products/637699334-alpine-s2-a120m-s-series-class-d-mono-subwoofer-amplifier
store_origin: LK
region: Sri Lanka
---

# 1200W RMS power output Side-panel controls for easy access Selectable remote turn-on circuit Alpine S2-A120M S-Series Class-D Mono Subwoofer Amplifier, Hi-Res Certified, 1200W RMS at 1 & 2-Ohm

**Brand:** alpine
**Price:** ₨515797
**Availability:** ✅ In Stock

## Summary

> 🎵 Power your bass like a pro — feel the difference, hear the envy.

## Quick Answers

- **What is this?** Alpine S2-A120M S-Series Class-D Mono Subwoofer Amplifier, Hi-Res Certified, 1200W RMS at 1 & 2-Ohm by alpine
- **How much does it cost?** ₨515797 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/637699334-alpine-s2-a120m-s-series-class-d-mono-subwoofer-amplifier)

## 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

- • **Unmatched Bass Power:** 1200W RMS at 1 & 2 Ohm delivers earth-shaking subwoofer performance.
- • **Certified Hi-Res Audio:** Class-D amplifier circuit guarantees clean, distortion-free bass that commands attention.
- • **Smart Remote Activation:** Three-position remote turn-on switch ensures perfect timing for power-up and shutdown.
- • **Effortless Control Access:** Side-mounted gain and crossover controls make tuning a breeze, even in tight spaces.
- • **Sleek, Space-Savvy Design:** Compact 13.1” W x 2.25” H footprint fits seamlessly under seats or shallow mounts.

## Overview

The Alpine S2-A120M is a high-performance Class-D mono subwoofer amplifier delivering 1200 watts RMS at both 1 and 2 ohms. Designed for professional-grade bass with easy side-panel controls and a selectable remote turn-on circuit, it fits compactly in vehicles while providing distortion-free, hi-res certified sound. Perfect for driving demanding subwoofers with precision and power.

## Description

PRODUCT OVERVIEW Entry-level sound just got elevated with the S2-A120M Mono Amplifier. Its sleek design houses an Alpine Class D Amplifier Circuit with 1200W of powerful bass performance. PRODUCT FEATURES Unparalled Power - Alpine’s S-Series S2-A120M 1200W Mono Amplifier is the perfect solution for unparalleled power and performance on a budget. With a power output of 1200W at a 1ohm or 2ohm drive, this mono amp is capable of driving even the most demanding subwoofers, delivering clean and distortion-free bass for a wide range of applications. Simplified Installation – The amplifier was intentionally designed with sound controls located on the side panels, instead of the top panel, making it easier to access gain and crossover controls when installed under vehicle seats or in shallow-depth locations. Removable end caps were added to cover the side controls and connections, providing a clean, sleek finish to the amplifier. MAIN FEATURES 1200W Mono Amplifier Alpine’s Class D Amplifier Circuit Two-Sided Terminal Layout Built-in Selectable / Adjustable Crossovers Optional Remote Bass Knob Compatible (required RUX-KNOB.2 or RUX-H01, sold separately) TECH SPECS Dimensions: 13.1” W x 2.25” H x 8.25” D Weight: 8 lbs, 11 oz Power Rating: 14.4V, 85dB Frequency Response: 20Hz – 400Hz Damping Factor: >750 WHAT’S IN THE BOX (x1) S2-A120M Mono Amplifier (x2) Connection end covers w/4 attachment screws Owner’s Manual “Birth Sheet” that certifies by measurement the actual power of the amplifier in the box (x4) Self-tapping screws (x1) Hexagon wrench Alpine Registration Card Alpine Limited Warranty Sheet Tips sheet for power supply wire connections

Review: Great power to run my 2 12 in subs
Review: Used for two twelves in a custom box for my Jeep Wrangler. It is obnoxious which was the goal. 😂

## Features

- With a power output of 1200W at a 1ohm or 2ohm drive, this mono amp is capable of driving even the most demanding subwoofers
- New to the Next-Generation S-Series amplifiers is a new selectable remote turn-on circuit, a three-position switch that ensures the amplifier turns on and off at the proper times.
- Intentionally designed with sound controls located on the side panels, instead of the top panel, making it easier to access gain and crossover controls when installed
- Delivering an impressive 1200 watts of power at both 1 ohm and 2 ohm, the S2-A120M is fully capable of providing ample power to two Alpine S-Series 10” or 12” Subwoofers

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C1HXB8DL |
| Batteries Required? | No |
| Batteries included? | No |
| Customer Reviews | 4.1 4.1 out of 5 stars (17) |
| Date First Available | 7 Jun. 2023 |
| Included components | S2-A120M |
| Item Package Quantity | 1 |
| Item Weight | 3.63 kg |
| Item model number | S2-A120M |
| Manufacturer | Alpine |
| Material | Metal |
| Part number | S2-A120M |
| Plug profile | Surface Mount |
| Product Dimensions | 40.64 x 29.21 x 12.07 cm; 3.63 kg |
| Specification met | FCC |

## Product Details

- **Item dimensions L x W x H:** 40.6 x 29.2 x 12.1 centimetres
- **Manufacturer:** Alpine
- **Maximum supply voltage:** 14.4 Volts (DC)
- **Minimum supply voltage:** 14 Volts (DC)
- **Mounting type:** Surface Mount

## Images

![Alpine S2-A120M S-Series Class-D Mono Subwoofer Amplifier, Hi-Res Certified, 1200W RMS at 1 & 2-Ohm - Image 1](https://m.media-amazon.com/images/I/21VBinFwr7L.jpg)
![Alpine S2-A120M S-Series Class-D Mono Subwoofer Amplifier, Hi-Res Certified, 1200W RMS at 1 & 2-Ohm - Image 2](https://m.media-amazon.com/images/I/21VZFnYpgEL.jpg)
![Alpine S2-A120M S-Series Class-D Mono Subwoofer Amplifier, Hi-Res Certified, 1200W RMS at 1 & 2-Ohm - Image 3](https://m.media-amazon.com/images/I/21hL6Pc-2uL.jpg)
![Alpine S2-A120M S-Series Class-D Mono Subwoofer Amplifier, Hi-Res Certified, 1200W RMS at 1 & 2-Ohm - Image 4](https://m.media-amazon.com/images/I/31gIBtlfEUL.jpg)
![Alpine S2-A120M S-Series Class-D Mono Subwoofer Amplifier, Hi-Res Certified, 1200W RMS at 1 & 2-Ohm - Image 5](https://m.media-amazon.com/images/I/31p4tFmA1BL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by R***. on 17 November 2025*

Great power to run my 2 12 in subs

### ⭐⭐⭐⭐⭐ Review
*by D***E on 13 October 2025*

Used for two twelves in a custom box for my Jeep Wrangler. It is obnoxious which was the goal. 😂

### ⭐⭐⭐⭐ Review
*by W***N on 2 January 2026*

Very powerful and clean.

## Frequently Bought Together

- Alpine S2-A120M S-Series Class-D Mono Subwoofer Amplifier, Hi-Res Certified, 1200W RMS at 1 & 2-Ohm
- Alpine RUX-KNOB.2 Remote Bass Knob
- Kicker 46KISLOC2 K-Series Stereo Line-Output Converter w/Remote Turn-On Output

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-01-26*