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S-A32F - 4-Channel Power Amplifier
S-A32F - 4-Channel Power Amplifier

S-A32F - 4-Channel Power Amplifier

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Alpine introduces the all-new S-Series amplifiers - a perfect match to the S-Series speakers. These amps have an excellent Watts-per-Euro ratio in the Class-D category, feature a very high heat resistance and won’t shut down due to overheating. They also feature excellent sound quality in their price range.

Three new S-Series amplifiers join the S-Series family, known for reliable performance and value-oriented products. All three S-Series amps (mono, 4-channel and 5-channel) contain technology currently implemented in R and X-Series models. The S-Series amps feature attractive prices and are designed to perform perfectly with the existing S-Series speakers.


Total Max Power: 640W

RMS Power (14.4V / 4 Ohms): 4 x 55W

RMS Power (14.4V / 2 Ohms): 4 x 80W




  • Terminal Layout: One side
  • Small footprint for easy installation
  • Screw terminals (for speaker and power cables)


  • Amplifier Type: Class-D (Digital)
  • Channel Design: 4/3/2 Channel
  • Thermal Management Control
  • Top Mounted LED Power/Status Indicator
  • Speaker Level Input with remote turn on
  • Crossover: Adjustable Low-pass (LPF) / High-pass Filter (HPF)
  • Gain Control: Adjustable
  • Bass Control: Remote Bass Control (RUX-KNOB2) Ready



        Max Power Output Ratings

        • Total Max Power: 640W

        RMS Power Ratings

        • Per Channel into 2 Ohms, 14.4V (≤1%THD+N): 4 x 80W
        • Per Channel into 4 Ohms, 14.4V (≤1%THD+N): 4 x 55W
        • Bridged into 4 Ohms, 14.4V (≤1%THD+N): 2 x 160W

        Sound Tuning

        • Crossover: Variable LPF, 50-400Hz (-12dB/oct )
        • Crossover: Variable HPF, 50-400Hz (-12dB/oct )


        • Power Requirements: 14.4 V.DC (9 - 16 V allowable)
        • Input Sensitivity (RCA Input): Hi: 0.5 - 10 V Lo: 0.2 - 4.0 V
        • High Level Input with automatic power on
        • Cable size: Power Cable AWG 8, SPK Cable AWG 10
        • Frequency Response (+0, -3dB: 1W into 4 ohms) for CH-1/2/3/4: 10Hz - 30kHz
        • THD+N (@ 10W into 4 ohms): <0.03%
        • THD+N (@ 50W into 4 ohms): <0.08%
        • Damping Factor: >100
        • Signal to Noise (@ 50 Watts into 4 Ohms): >98dB
        • Weight: 1.9 kg


        • Heat Sink (WxHxD) mm: 204 x 58 x 204
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