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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 Playback. 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. Flexible Application - 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. Power a Full System – With its versatile 5-Channel design, the S2-A55V Amplifier is the perfect solution to power your sound system all in a single chassis. This amplifier delivers crisp and clear audio to up to four speakers plus an additional subwoofer to give your system a complete audio upgrade MAIN FEATURES • Hi-Res Audio Certified (Up to 40kHz) • 5-Channel 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 • Power Rating: 14.4V, < 0.1% THD +N • Power Output: 40W x 4 + 200W x 1 @ 4Ω, 60W x 4 + 300W x 1 @ 2Ω • Bridged Power: 120W RMS x 2 @ 4Ω • S/N Ratio: >83dB • Frequency Response: 20Hz – 40kHz • Damping Factor: >100 WHAT’S IN THE BOX • 1 S2-A55V 5-Channel Amplifier • 2 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 • 4 Self-tapping screws • 1 Hexagon wrench • Alpine Registration Card • Alpine Limited Warranty Sheet • Tips sheet for power supply wire connection
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The specs above are the fastest way to confirm a part is right before checkout — a size or power rating just outside your factory setup usually means an adapter or a different SKU, not a return later. If you are not sure which spec matters for your vehicle, the fit tool at the top of the page narrows the catalog to parts already confirmed for your year, make, and model.
