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.

Alpine S-Series amplifiers are available in two mono, a 4-channel and a 5-channel configuration.

FEATURES

Install

• Terminal Layout: Two-sided
• Included terminal covers
• Screw terminals (for speaker and power cables)

General

• 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)

SPECIFICATIONS

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)

General

• 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

Dimensions

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