Alpine S2-S40C

$130.00

Next-Generation S-Series 4″ component speaker system

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Product Highlights

  • Type: 4″ 2-way component speaker system
  • Power Handling: 45 watts RMS
  • Peak Power: 140 watts
  • Frequency Response: 100-40,000 Hz
  • Sensitivity: 85 dB
  • Impedance: 4 ohms

Key Features

  • Premium Speaker Construction:
    • Polypropylene/glass fiber/mica woofer cone for lightweight rigidity
    • HAMR rubber surround allows optimal cone movement
    • 1″ cloth dome tweeter for detailed high-frequency response
  • High-Resolution Audio Design:
    • Extended frequency response to 40,000 Hz
    • Technology derived from Alpine’s flagship F#1 Status Series
    • Detailed, authentic sound reproduction
  • Versatile Installation Options:
    • Multiple tweeter mounting configurations (flush, angled, factory locations)
    • 20° pivoting tweeter design for optimal sound aiming
    • Included 4″x6″ adapter brackets for factory replacements
    • In-line crossovers for simplified installation
    • Removable woofer mounting tabs for 4-hole or 2-hole applications

Package Contents

  • Two 4″ woofers
  • Two 4″x6″ adapter brackets
  • Two 1″ cloth dome tweeters (with 29″ wire attached)
  • Two flush mount housings with installed tweeters
  • Two fixed tweeter grilles
  • Two 37″ tweeter wires with in-line crossovers
  • Two flush mount retention rings
  • Two stealth brackets for factory locations
  • Two flat mounting flanges for factory applications
  • Mounting hardware and installation accessories
  • Installation documentation

Physical Specifications

  • Woofer Dimensions:
    • Mounting Depth: 1.72″ (1-3/4″)
    • Cutout Diameter: 3.68″ (3-11/16″)
    • Mounting Height: 0.28″
    • Frame Size: 4″ x 4″
  • Tweeter Dimensions:
    • Flush Mount: 2.28″ diameter (2.0″ cutout), 0.75″ depth, 0.35″ height
    • Factory Location (bottom mount): 1.715″ diameter (1.25″ cutout), 0.721″ depth
    • Factory Location (top mount): 1.715″ diameter (1.715″ cutout), 0.64″ depth, 0.08″ height
    • Factory Location (under factory grille): 1.715″ diameter, 0″ depth, 0.72″ height

Performance Specifications

  • Power Handling: 45 watts RMS
  • Peak Power Handling: 140 watts
  • Frequency Response: 100-40,000 Hz
  • Sensitivity: 85 dB at 1 watt
  • Impedance: 4 ohms

Construction Details

  • Woofer:
    • Cone Material: Polypropylene/glass fiber/mica composite
    • Surround: High-Amplitude Multi-Roll (HAMR) rubber
    • Frame: Removable mounting tabs for versatile installation
  • Tweeter:
    • Design: 1″ cloth dome
    • Housing: Threaded removable design
    • Features: Pivoting capability (approximately 20°)
  • Crossover:
    • In-line high-pass filters for tweeters
    • Quick-connect terminals for easy installation
    • 37″ wiring with built-in crossovers
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