Alpine S2-A55V

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

The S-Series S2-A55V 5-Channel Amplifier delivers 60 watts RMS @ 2 Ohm of crystal-clear high-fidelity signal to each of your car's front and rear speakers while driving a subwoofer with up to 300 watts RMS. The amplifier's combination of Hi-Res Audio capability in its 4-channel section and extra bass power from the sub channel brings your music to life, with every precise detail, pulsating beat and emotional power clearly revealed. For a 3-channel 2-way system, you can also use the amplifier to drive a pair of front high-performance speakers with 120 watts RMS each, while driving a subwoofer with 300 watts. A variable bass boost on the sub channel lets you dial in a little extra kick and impact to your system's low-frequency sound. You can even add an optional wired remote control to adjust the level of bass from the front seat.

High and low pass filters give you control over the frequency spectrum that reaches your speakers and subs. The amplifier includes both preamp 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 amplifier can sense the incoming signal and turn itself on, eliminating the need to run a separate power cable to the receiver or fuse box.

RMS power

Per channel in 2 Ohms, 14.4V (≤1%THD+N): 4 x 60W + 1 x 300W
Per channel in 4 Ohm, 14.4V (≤1%THD+N): 4 x 40W + 1 x 200W
Bridged, 4 Ohm, 14.4V: 2 x 120W

Sound setting

Crossover: Variable HPF/LPF: 50-400Hz (-12dB/oct / -24dB/oct for subwoofer)
Bass EQ (50Hz bass boost up to +12dB)

Generally

Power requirement: 14.4 V.DC (9 - 16 V allowed)
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: 3.2 kg

Measure

Heat sink (WxHxD) mm: 302 x 57 x 210