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Alpine S2-A120M Next-Generation S-Series 1200W Mono Amplifier.  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.




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.




Alpine S2-A120M Next-Generation S-Series 1200W Mono Amplifier


    • 800W Mono Amplifier
    • High-Efficiency Digital Circuit Design
    • Alpine’s Dual Negative Feedback Control Circuit
    • High Bandwidth Amplifier 
    • Alpine’s Premium Class D Circuit Design 
    • Copper-plated chassis
    • Black circuit board
    • One-sided terminal layout
    • Top panel sound controls
    • Quick connect power and speaker terminals
    • Optional Remote bass knob compatible (requires RUX-KNOB.2 or RUX-H01, sold separately)


    What's in the Box:

    • HDA-M80 Mono Amplifier
    • Owner’s manual
    • “Birth sheet” that certifies by measurement the actual power of the amplifier in the box
    • 4 Screws for amplifier mounting to vehicle
    • 2pcs. Mount bracket w/ 4 Screws for attachment to amplifier
    • 3pcs. Allen wrench for amplifier connection & installation – Sizes: 2mm/2.5mm/4mm
    • 1pc. Quick connector block for Power/Ground/Remote wires
    • 1pc. Quick connector block for Speaker wires

    • Dimensions: 11.4375” x 7.5” x 2.125”
    • Power Rating: (14.4V, ≤1.0% THD+N)
    • 800W x 1 @ 2Ω
    • 500W x 1 @ 4Ω
    • THD+N: 0.02% (10W into 4ohm)
    • S/N Ratio: 83dB (1W into 4ohm)
    • Frequency response: 8-400Hz (-3dB)
    • Damping factor: 1500
    • Selectable input level – HI/LO
    • Variable High pass / Low pass crossover
    • Variable Subsonic filter
    • Bass EQ (0 to +12dB, Variable)
    • Auto-turn on with remote sensing
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