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Alpine S-Series 55-Watt x 4-Channel Power Amplifier The S-Series amplifiers are designed to fit anywhere.  Measuring at 8”, these amplifiers can be mounted under seats or behind panels.  Though they sport a compact footprint on the outside, they produce impressive power on the inside The S-A32F 4-Channel Amplifier boasts the perfect amount of power to drive the newly redesigned S-Series speakers to their optimal performance for clean and accurate sound. The S-Series amplifiers contain technology that was previously only available in our premium line up of amplifiers, the R- and X-Series models. The S-Series models are based on Alpine’s intelligent amplifier platform that ensures superior sound reproduction and precision imaging. With an improved heat sink, and protection circuit design that eliminates thermal shut-down, your music will keep playing no matter where your drive takes you. Specifications Alpine's Class D amplifier circuit 55W RMS x 4 (4Ω, 14.4V, ≤ 1% THD+N) 80W RMS x 4 (2Ω, 14.4V, ≤ 1% THD+N) Bridged: 160W RMS x 2 (4Ω, 14.4V, ≤ 1% THD+N) S/N >83dB (ref. 1W into 4Ω) THD+N ≤ 0.03% (ref. 1W into 4Ω) Frequency response =10Hz to 30kHz (+/-3dB) Damping Factor >100 Alpine S-A32F Manual

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