Now Hiring - Installers, Detailers and Window Tinters. Learn More

Stores open in WA, OR, CO and TX Find Your Store

From remote starts systems to receivers and subs, save big on the best accessories for your ride.
Brand Alpine
SKU:  S2A120M
(0 Reviews)

Alpine S2-A120M Next-Gen S-Series Mono Subwoofer Amplifier

Brand Alpine
SKU:  S2A120M
(0 Reviews)

Alpine S2-A120M Next-Gen S-Series Mono Subwoofer Amplifier

Save 10%
Available in Store

Free Shipping

On orders $35 or more
Installation Service
Available at all Car Toys locations
Our certified installers are true automotive enthusiasts. Their work is their passion and for jobs big or small, simple or complex, there's no better way to go..
Brand Alpine
SKU:  S2A120M
(0 Reviews)
Available in Store

Alpine S2-A120M Next-Gen S-Series Mono Subwoofer Amplifier


About This Product


Alpine S2-A120M Next-Gen S-Series Mono Subwoofer Amplifier

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.


  • 1200W Mono Power 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)

Unparalleled 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.

Flexible Application
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. This design is crucial with newer, in-vehicle technology and allows for proper integration with any factory or aftermarket system.

Easy Control Access
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.

Power Dual Subwoofers
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, ensuring exceptional sound quality and optimal performance.


Dimensions: 13.1” W x 2.25” H x 8.25” D
Weight: 8 lbs, 11 oz
Power Rating: 14.4V, < 0.1% THD +N
Power Output: 600W x 1 @ 4Ω, 1200W x 1 @ 2Ω, 1200W x 1 @ 1Ω
S/N Ratio: > 85dB
Frequency Response: 20Hz – 400Hz
Damping Factor: > 750
CTA-2006-D Certification

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



Want to know if this product is compatible with your car? We’ll tell you for free!