Alpine S2-A55V
S-Series 5-Channel Power Amplifier
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The Alpine S2-A55V is a versatile 5-channel amplifier designed to power an entire car audio system from a single chassis. Featuring Alpine’s efficient Class D circuitry, it delivers clean, high-fidelity sound across all channels. The amplifier includes built-in adjustable crossovers and is compatible with optional remote bass level controllers, allowing for precise audio customization. Its compact design and side-mounted controls facilitate easy installation and integration into various vehicle setups.
| Key Features | |
|---|---|
| Amplifier Type | 5-Channel Class D |
| Hi-Res Audio Certified | Yes (Up to 40kHz) |
| Built-in Crossovers | Selectable/Adjustable High-Pass and Low-Pass Filters |
| Remote Bass Control | Compatible with RUX-KNOB.2 or RUX-H01 (sold separately) |
| Terminal Layout | Two-Sided with Removable End Caps |
| Signal Sensing Turn-On | Selectable 3-Position Switch |
| What’s in the Box |
|---|
| 1 × 5-Channel Amplifier |
| 2 × Connection End Covers |
| 1 × Mounting Hardware |
| 1 × Hexagon Wrench |
| 1 × Owner’s Manual |
| 1 × Alpine Verification Certificate |
| Technical Specifications | |
|---|---|
| RMS Power @ 4Ω | 40W x 4 + 200W x 1 |
| RMS Power @ 2Ω | 60W x 4 + 300W x 1 |
| Bridged Power @ 4Ω | 120W x 2 + 300W x 1 |
| Frequency Response | 20Hz – 40kHz |
| Signal-to-Noise Ratio | >83dB |
| Damping Factor | >100 |
| Input Sensitivity (Low-Level) | 0.2V – 4.0V |
| Input Sensitivity (High-Level) | 0.5V – 10.0V |
| Dimensions (W × H × D) | 11.9" × 2.25" × 8.25" |
| Weight | 7 lbs |
| Warranty | 1 Year |
FAQ
Do products purchased from San Diego Car Stereo come with a warranty?
Yes, all products come with a 1-year manufacturer warranty unless otherwise stated. This covers any defects excluding physical damage.
Are these products brand new?
Yes, every product we sell is 100% brand new, unused, and comes in original manufacturer packaging unless clearly marked otherwise.
Do you offer installation services?
Yes, we offer professional installation services at both of our San Diego Car Stereo locations. Our expert technicians have over 50 years of combined experience to install all of your car, marine, or offroad audio needs. Stop by or give us a call to schedule an appointment to get a quote in person.