4-Channel Amplifier

This product has been discontinued.

Alpine S-A32F
Alpine S-A32F


S-Series amplifiers are your sound system’s workhorse. With unmatched reliability and budget-friendly prices, these amplifiers are the better choice in performance value.

  • 4-Channel Power Amplifier
  • Alpine’s Class D Amplifier Circuit
  • 55W RMS x 4 @ 4ohm
  • 80W RMS x 4 @ 2 ohm
  • Frequency Response: 10Hz - 30kHz (+/-3 dB)

The Better Choice in Performance Value

Perfect for beginners and enthusiasts alike, the S-Series amplifiers have the technology to improve your music experience yet are still friendly on your wallet. Used in conjunction with our advanced S-Series speakers and subwoofers, they create a complete sound system that takes your in-vehicle music experience to the next level.

Small but Mighty

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.

Reliable Performance

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.


55W RMS x 4 (4ohm, 14.4V ≤ 1% THD+N)
80W RMS x 4 (2ohm, 14.4V≤ 1% THD+N)
Bridged: 160W RMS x 2 (4ohm, 14.4V ≤ 1% THD+N)
S/N Ratio
>83dB (ref: 1W into 4 ohm)
>98dB (ref: rated power into 4 ohm)
≤ 0.03% (ref 1W info 4 ohm)
Frequency Response
10Hz - 30kHz (+/-3dB)
Damping Factor
> 100
More Information
Brand Alpine