Alpine S2-A55V S-Series 5-Channel Amplifier Enhance your car audio system with the Alpine S2-A55V, a high-performance 5-channel amplifier from the S-Series. Engineered with Class D technology and Hi-Res Audio certification, this compact amplifier delivers 550W total power for full-range audio, ideal for driving speakers and subwoofers. Key Features of the Alpine S2-A55V Class D Amplifier Circuit: Provides efficient power output with minimal heat. Hi-Res Audio Certified: Supports high-resolution audio for superior sound quality. Built-in Selectable/Adjustable Crossovers: Includes high-pass (50-250 Hz) and low-pass (50-250 Hz) filters. Two-Sided Terminal Layout: Simplifies wiring for front, rear, and subwoofer connections. Optional Remote Bass Knob: Allows on-the-fly bass level adjustment (RUX-KNOB2 sold separately). CEA-2006 Compliant: Ensures accurate power ratings. Specifications Table Specification Details Amplifier Type 5-Channel Amplifier Power Output (RMS) 55W x 4 @ 4Ω + 300W x 1 @ 2Ω Power Output (Max) Frequency Response 10 Hz - 40 kHz (Hi-Res Certified) Signal-to-Noise Ratio 105 dB @ 4Ω Total Harmonic Distortion (THD) < 1% @ rated power Input Sensitivity 200mV - 4V (RCA), 600mV - 10V (High-Level) Crossover Frequencies High-Pass: 50-250 Hz (12 dB/Oct), Low-Pass: 50-250 Hz (12 dB/Oct) Damping Factor > 250 Operating Voltage 9V - 16V DC Idle Current 0.8A Maximum Current Draw 70A @ 2Ω Dimensions (W x H x D) 7.48" x 2.01" x 7.09" (190 x 51 x 180 mm) Weight 5.5 lbs (2.5 kg) Efficiency Not specified
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