Home / Collections / All / Alpine S2-A55V S-Series 5-Channel Amplifier

Alpine S2-A55V S-Series 5-Channel Amplifier

Alpine S2-A55V S-Series 5-Channel Amplifier

Alpine S2-A55V S-Series 5-Channel Amplifier



The next generation of Alpine S-Series amplifiers are designed to take your car audio experience to the next level without breaking the bank. With a sleek new redesign and upgraded features from their predecessors, these amplifiers offer exceptional performance and power on an affordable budget.

The S-Series S2-A55V 5-channel amplifier delivers 60 Watts RMS @ 2 Ohms of pristine high-fidelity signal to each of your car's front and rear speakers while powering a subwoofer with up to 300 Watts RMS at the same time. The amp's combination of Hi-Res Audio capabilities in its 4-channel section and extra bass power from the sub channel brings your music to life, with all the precise details, pounding beats, and emotional power clearly revealed. For a 3-channel 2-way system, you could also use the amp to drive a pair of front high-performance speakers with 120 Watts RMS each, while powering a subwoofer with 300 Watts. A variable bass boost on the sub channel allows you to dial in some extra kick and impact to your system's low-frequency sound. You can even add an optional wired remote to control the level of bass from your front seat.

High- and low-pass filters put you in command of the frequency spectrum that reaches your speakers and subs. The amp includes pre-amp- and speaker-level inputs, so you can install it in almost any vehicle, even one with a factory radio. When using the speaker-level inputs, the amp can sense the incoming signal and turn itself on, eliminating the need to run a separate turn-on wire to the receiver or fuse box



  • Terminal Layout: Two-sided

  • Included terminal covers

  • Screw terminals (for speaker and power cables)


  • Class-D Amplification (Digital)

  • Hi-Res Audio Certified

  • Channel Design: 5/4/3 Channel

  • Side panel controls

  • Thermal Management Control

  • Top Mounted LED Power/Status Indicator

  • Speaker Level Input

  • 3 turn-on modes (DC HI, Remote HI, Remote LO)

  • Input Channel Selector Switch for Subwoofer

  • Crossover: Variable Low-pass Filter (LPF) and High-Pass Filter (HPF),

  • Adjustable Gain Control

  • Bass EQ

  • Remote Bass Control (RUX-KNOB2) Ready (for channel 5 only)


RMS Power Ratings

  • Per Channel into 2 Ohms, 14.4V (≤1%THD+N): 4 x 60W + 1 x 300W

  • Per Channel into 4 Ohms, 14.4V (≤1%THD+N): 4 x 40W + 1 x 200W

  • Bridged, 4 Ohms, 14.4V: 2 x 120W

Sound Tuning

  • Crossover: Variable HPF/LPF: 50-400Hz (-12dB/oct  / -24dB/oct for subwoofer)

  • Bass EQ (50Hz bass boost up to +12dB)


  • Power Requirements: 14.4 V.DC (9 - 16 V allowable)

  • Input Sensitivity (RCA Input): Hi: 0.5V - 10V / Low: 0.2V - 4.0V

  • High Level Input with automatic power on

  • Frequency Response: 10Hz – 40kHz

  • THD+N (@ 10W into 4 Ohms): <0.03%

  • Damping Factor: >100 (speaker channels) / > 750 (subwoofer channel)

  • Weight: 3.2kg


  • Heat Sink (WxHxD) mm: 302 x 57 x 210