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Alpine  S2-A55V

Next-Generation S Series 5-Channel 60W RMS x 4 + 5th Channel 300W RMS x 1 at 2 Ohms, Class-D Full Range Car Amplifier

Item #89417

Condition:   Brand New

Product Highlights

  • Next-Generation S Series
  • 5-Channel
  • 60W RMS x 4 + 5th Channel 300W RMS x 1 at 2 Ohms
  • Class-D
  • Full Range Car Amplifier

  Free 2-Years Warranty Included!
60 DAYS Returns Accepted.
FREE Lifetime Tech Support.
FREE Shipping.
60 DAYS Price change protection.

$499.95

Reg. Price $529.95  Save $30.00
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  Free 2-Years Warranty Included!
60 DAYS Returns Accepted.
FREE Lifetime Tech Support.
FREE Shipping.
60 DAYS Price change protection.

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Alpine S2-A55V Next-Generation S Series 5-Channel 60W RMS x 4 + 5th Channel 300W RMS x 1 at 2 Ohms, Class-D Full Range Car Amplifier


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We are a Alpine authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!

What's Inside?
  • • 5-Channel amplifier
  • • Two 30-amp ATO fuses (installed)
  • • (2) End caps
  • • (4) 3/4" Screws
  • • (4) 1/4" screws
  • • 2mm Allen key
  • • Alpine Verification Certificate
  • • Warranty information
  • • Power supply note
  • • On-line product registration information
  • Owner's Manual

 


Why Choose Alpine S2-A55V 5-Channel Amplifier?


 

 

Alpine S2-A55V 5-Channel Amplifier Top Down View
Next-Level Power and Clarity

The Next-Gen Alpine S-Series S2-A55V 5-Channel Amplifier is Hi-Res Audio Certified, capable of reproducing frequencies up to 40kHz for stunning audio clarity. With its ultra-wide bandwidth and upgraded S-Series design, it sets a new standard for entry-level performance at an unbeatable price.

Smarter Power Control for Modern Vehicles

The Next-Gen S-Series Amplifiers now include a selectable remote turn-on circuit with a three-position switch, ensuring the amplifier powers on and off at the right time. Designed for seamless integration with today’s advanced in-vehicle technology, it works flawlessly with both factory and aftermarket systems.

Alpine S2-A55V 5-Channel Amplifier Left Side Panel
Alpine S2-A55V 5-Channel Amplifier Right Side Panel Internal View
Designed for Convenience and a Clean Look

The amplifier features side-mounted sound controls for easy access to gain and crossover settings, especially when installed under seats or in tight spaces. Removable end caps conceal the controls and connections, delivering a clean, streamlined appearance for a professional-looking installation.

One Amp, Complete System Power

The S2-A55V Amplifier’s versatile 5-channel design makes it the ideal all-in-one solution for powering your entire sound system. It delivers crisp, clear audio to up to four speakers and a dedicated subwoofer channel, giving your vehicle a full and balanced audio upgrade from a single, compact chassis.

Alpine S2-A55V 5-Channel Amplifier

 


Frequently Asked Questions (FAQ)


  • • Can this amplifier power my door speakers and subwoofer at the same time?
    Yes, the 5-channel design allows you to power multiple full-range speakers along with a dedicated subwoofer from a single amplifier. This makes it an excellent choice for building a complete audio system while saving installation space.
  • • Why does the amplifier enter protection mode after playing music for several minutes?
    This is commonly caused by overheating, incorrect speaker wiring, or a load that is below the recommended impedance. Checking the wiring and providing adequate airflow usually resolves the problem.
  • • Can I use this amplifier with my factory stereo?
    Yes, many factory radios can be integrated using speaker-level inputs or a compatible line output converter. This allows you to upgrade your sound system without replacing the original head unit.
  • • Will I need to upgrade my vehicle's electrical system?
    Most factory charging systems can support this amplifier under normal listening conditions. Larger audio systems with additional amplifiers may benefit from upgraded wiring or a higher-capacity battery.
  • • Can I bridge channels to get more power for my speakers?
    Yes, compatible channels can be bridged if the amplifier supports that configuration. Always verify the minimum impedance requirements before wiring bridged speakers.
  • • Why does the amplifier become warm during long drives?
    It is completely normal for a high-performance amplifier to generate heat while producing continuous power. Installing it in a well-ventilated location helps maintain reliable performance over extended listening sessions.
  • • What size power cable should I use for the installation?
    The recommended wire gauge depends on the amplifier's current draw and the length of the power cable. Using the proper wire size ensures stable voltage delivery and improves overall system reliability.
  • • Can I expand my audio system later without replacing this amplifier?
    Yes, many users begin with a basic speaker and subwoofer setup before adding more equipment over time. Planning your wiring carefully makes future upgrades much easier.
  • • How should I tune the amplifier for the best overall sound quality?
    Start by setting the gain correctly, then adjust the high-pass and low-pass crossovers based on your speakers and subwoofer. Small tuning adjustments usually produce cleaner, more balanced sound than using excessive bass boost or equalization.

SPECIFICATIONS


  • Low Frequency Response : 50-400 Hz
  • High Frequency Response : 50-400 Hz
  • Number of Channels : 5
  • Frequency Response : 20-40000 Hz
  • Built In Crossovers : Yes
  • Channel Separation : Yes
  • Amplifier Class : D
  • Fuse Rating : 60 A

FEATURES


Features:

  • Crystal-Clear Sound: Hi-Res Audio Certified (Up to 40kHz)
  • All-in-One Power: 5-Channel Amplifier
  • Efficient Performance: Alpine’s Class D Amplifier Circuit
  • Clean Installation: Two-sided terminal layout
  • Tailored Tuning: Built-in Selectable/Adjustable Crossovers
  • Bass Control Ready: Optional Remote Bass Knob Compatible (requires RUX-KNOB.2 or RUX-H01, sold separately)

 

Specifications:

  • Dimensions: 11.9” W x 2.25” H x 8.25” D
  • Power Rating: 14.4V, < 0.1% THD +N
  • Power Output: 40W x 4 + 200W x 1 @ 4?, 60W x 4 + 300W x 1 @ 2?
  • Bridged Power: 120W RMS x 2 @ 4?
  • S/N Ratio: >83dB
  • Frequency Response: 20Hz – 40kHz
  • Damping Factor: >100
  • UPC: 793276085184
  • Weight: 7
  • Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for repair within 1 year from the original date of purchase with proper return authorization.

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Write a review!
  • Got this amp to replace my alpine f350 4 channel amp didnt want to add a second added a pair mb quart ds1-304 slim shallow dvc subwoofer. might swith out for some jbl shallow sub the amp push my 4 6x8 am a per of tweeters the music sound live an in your face

    Dwight j Richardson
    11/16/2023

  • Easy to install. This took away all the static, popping, and feedback

    Carl
    8/13/2024

  • Love how its size allows to place it under seat in my truck. Great power enough to bring out the best of my system. Runs cool too

    Gerald
    5/7/2025
free installation