Alpine SBW-D12S4 Bassline 12″ Dual Subwoofer Enclosure

Bass Series subwoofers are known for their reliability, small size and big power output.




Alpine SBW-D12S4

Bassline 12″ Dual Subwoofer Enclosure

Building on Alpine’s long heritage in subwoofer engineering,

Alpine created a subwoofer line that could spread the passion for deep, hard-hitting bass. Bass Series subwoofers use a polypropylene and mica damped cone assembly to keep the cone stiff and light for great-sounding bass tones, whilst the high-excursion polyfoam surround provides high-output bass.


The Alpine SBW-D12S4 combines 2 of the new Bass Series 12″ Subwoofers with a perfectly matched custom-sealed dual enclosure, precisely designed and engineered to produce the best-sounding bass.

Alpine understands the importance of bass for the car audio enthusiast while keeping it budget-friendly at the same time.

The BASS subwoofers are engineered to be fun and loud in a budget-friendly category by combining retro styling with enough efficiency to run on 250W RMS.

They still hold their own today!

1-Year Warranty as per Alpine Electronics Australia Terms and Conditions

  • Custom Sealed Enclosure
  • W12D4 Bass Series Sub Pre Installed
  • 12” Dual 2Ω Subwoofers
  • Progressive Wavelet Ribs (P.W.R.) Cone Design
  • Heavy Gauge Screw Terminals
  • Polypropylene and Mica Cone
  • Polyfoam Surrounds
  • High Strength Custom Steel Frame
  • 8 AWG Push Terminals
  • Progressive Polyester Spider
  • 2 Piece Yoke with Vented Pole Motor Structure
  • Optimised Magnet Circuit
  • Grille Included
  • 500W RMS Power Handling
  • 1500W Peak Power Handling
  • Dimensions (cm): 39.6 L x 76.6 W x 29.6 H


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