Alpine S-A32F S-Series 320W RMS 4-Channel Car Audio Amplifier

Brand: Alpine
Model Number: S-A32F
UPC: 793276242570
Model Number: S-A32F
UPC: 793276242570
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Alpine S-A32F S-Series 320W RMS 4-Channel Car Audio Amplifier

  • 4-channel car amplifier
  • Remote Sensing automatic turn-on when using speaker-level inputs
  • Optional wired remote level control for Ch 3/4 available
  • Designed to perform perfectly with the existing S-Series
  • 46-degrees of phase shift
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Frequently Bought Together

Alpine S-A32F+Alpine KTP-445U
Price for both:   $748.99

Product Description

Features & Specifications



Alpine S-A32F S-Series 320W RMS 4-Channel Car Audio Amplifier

Alpine S-A32F 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. S-Series amplifiers are available in mono, 4-channel and 5-channel configuration.

The Alpine S-Series Sound Components

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.

All Digital Design

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

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 S-A32F directly to your original car stereo, regardless of your head unit’s power output.

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.

Brand Alpine   Model Alpine S-A32F
Product: Alpine S-A32F S-Series 320W RMS 4-Channel Car Audio Amplifier
Weight 1.9 kg

RMS Power Output (Watts x Channels) 55 x 4
Power at 2 Ohms (Watts x Channels) 80 x 4
Bridged Power (Watts x Channels) 160 x 2
Minimum Impedance Bridged 4
Minimum Impedance Unbridged 2
Minimum Impedance 2
Best Frequency Response 10-30k Hz
THD at Rated RMS Power 1%
Signal to Noise Ratio 83 dB
Input Voltage 14.4v


Amplifier Class D
Low-Pass Crossover Frequency 50-400 Hz
Low-Pass Slope (dB/octave) 12 dB/octave
High-Pass Crossover Frequency 50-400 Hz
High-Pass Slope (dB/octave) 12 dB/octave
Bass Boost No
Fan Cooled No
Fuse Rating 40
Speaker Level Inputs Yes
Preamp Outputs No
Width (inches) 9
Height (inches) 2-5/16
Depth (inches) 8-1/16

What's in the box

Alpine S-A32F owner's manual
4-Channel amplifier
One 40-amp ATO fuse (installed)
Four 3/4" Screws
2mm Allen wrench
Owner's manual (English/ French/ Spanish)
Alpine Verification Certificate
Warranty information
Power supply note
On-line product registration information

Mobile Amplifier Channels

4 Channel

Mobile Amplifier Class

Class D

Mobile Amplifier Features

High-Pass Filter, Low-Pass Filter, Speaker Level Inputs

Mobile Amplifier Fuse Rating


Mobile Amplifier RMS

151 to 200 watts

Mobile Min Impedance


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Alpine Canada 1 Year Limited Warranty.


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