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. 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. 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. 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. Features: 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) CTA-2006-D Certification (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 Peak Power Handling 1200W Power Rating 14.4V, < 1.0% THD +N Power Output 1: 600W x 1 @ 4Ω 2: 1200W x 1 @ 2Ω 3: 1200W x 1 @ 1Ω S/N Ratio >85dB Frequency Response 20Hz – 400Hz Damping Factor >750 Weight 8 lbs, 11 oz Dimensions 13.1” W x 2.25” H x 8.25” D