- Alpine S2-A36F 4-channel amplifier, designed for high-quality car audio systems - Class-D digital technology delivers energy efficiency and powerful sound - Maximum power of 640W, with RMS outputs of 4x80W at 2 Ohm, 4x55W at 4 Ohm, and 2x160W in bridged mode - Variable high-pass (HPF) and low-pass (LPF) filters from 50 to 400 Hz for customized tuning - High-power inputs with automatic turn-on function and robust screw terminals - Intelligent thermal management to prevent overheating and ensure durability - Compact design (204 x 58 x 204 mm) for easy installation in any vehicle - Low total harmonic distortion (<0.03% at 10W), high signal-to-noise ratio (>98 dB) - Compatible with bass remote control (RUX-KNOB, sold separately) - Ideal for those looking to enhance the quality, power, and customization of in-car sound