All Digital Design

Compact and Powerful: the new digital amplification circuit allows high power output while keeping a small footprint.

The Alpine S-A32F measures just 204mm in width x 204mm in length for easy installation in virtually any vehicle.

Thermal Protection

Along with Alpine’s new intelligent amplifier platform, the new S-Series amplifiers feature an improved heat sink and protection circuit design that eliminates thermal shut-down, for dependable music playback.

One-sided Cable Terminals

The speaker and power cable terminals are conveniently located on the left side of the amplifier to allow a clean installation.

The power cable terminals accept heavy gauge cables.

Low/High-Power Speaker Signal Inputs

The 4-Channel RCA speaker signal inputs accept low and high-power signals. This makes it easy to connect the Alpine S-A32F directly to your original car stereo, regardless of your head unit’s power output (RCA connectors with open cable leads are available separately).

Control Your Subwoofer

You can connect the Alpine RUX-KNOB2 remote bass knod (optional available) to the Alpine S-A32F to control the subwoofer level straight from your dash (applicable for channel 3+4 in bridged mode for subwoofer usage).

High-Pass / Low-Pass Filter

With this filter switch, you can assign the amplification channel (pair) to be used for door speakers or a subwoofer. You can then adjust the cut-off frequency for more precise tuning.

Alpine S-A32F - Features:

Alpine S-A32F - Specifications:

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

General

• 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-KNOB.2) Ready

• 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 )

General

• 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

Dimensions

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