top of page

Alpine S2-A55V Next-Generation S-Series 5-Channel Amplifier.   Entry-level sound just got elevated with the S2-A55V 5-Channel Amplifier. Its sleek redesign houses an Alpine Class D Amplifier Circuit and is now certified for Hi-Res Audio.




The Next-Gen Alpine S-Series S2-A55V 5-Channel Amplifier is Hi-Res Audio Certified and able to reproduce up to 40kHz frequency response. This ultra-wide bandwidth coupled with the elevated S-Series design brings out a new benchmark for entry-level performance and price.




The Next-Gen S-Series Amplifiers now feature 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-A55V Next-Generation S-Series 5-Channel Amplifier


    • Hi-Res Audio Playback (192kHz/24Bit) 
    • 5-Channel 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-V90 5-Channel 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 the vehicle
    • 2pcs. Mount bracket w/ 4 Screws for attachment to the amplifier
    • 3pcs. Allen wrench for amplifier connection & installation – Sizes: 2mm/2.5mm/4mm
    • 1pc. Quick connector block for Power/Ground/Remote wires
    • 3pcs. Quick connector block for Speaker wires

    • Dimensions: 11.4375” x 7.5” x 2.125”
    • Power Rating: (14.4V, ≤1.0% THD+N)
    • 75W x 4 + 300W x 1 @ 4Ω
    • 100W x 4 + 500W x 1 @ 2Ω
    • Bridged: 200W x 2 @ 4Ω (ch1/2, ch3/4 only)
    • THD+N: 0.02% (10W into 4ohm)
    • S/N Ratio: 87dB (1W into 4ohm)
    • Frequency response: 8-60kHz (-3dB)
    • Damping factor: 500 (ch1/2/3/4), 1000 (subwoofer)
    • Selectable input level – HI/LO
    • Selectable 2/4/6ch input
    • Variable High pass / Low pass crossover
    • Variable Subsonic filter (subwoofer)
    • Bass EQ (0 to +12dB, Variable)
    • Auto-turn on with remote sensing
bottom of page