Alpine SBL-D12S4 Bassline 12″ Dual Subwoofer Enclosure

Alpine 12″ Bassline Subwoofers in a tuned enclosure.


Signature Car Sound, the Home of Alpine on the Sunshine Coast


Alpine SBL-D12S4

Bassline 12″ Dual Subwoofer in tuned Enclosure

Affordable Bass with out compromise.

Alpine SBL-D12S4

Alpine SBL-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.

Alpine SWA-12S4 Bassline 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.

These Alpine SWA-12S4Bassline subwoofers are known for their reliability, small size and big power output.

The Alpine SBL-D12S4 combines 2 of the new Alpine SWA-12S4 Bassline 12″ Subwoofers with a perfectly matched custom sealed dual enclosure, precisely designed and engineered to produce the best sounding bass.

* 1 Year Warranty as per Alpine Electronics Australia Terms & Condition’s

Alpine SBL-D12S4 – Features

  • Custom Sealed Dual Enclosure
  • 2 x SWA-12S4 12″ Bassline Subwoofers Pre-installed
  • Heavy Gauge Screw Terminals
  • Grille Included

Alpine SBL-D12S4 – Specifications

  • 500W RMS Power Handling
  • 1500W Peak Power Handling
  • Dimensions (cm): 39.6 L x 76.6 W x 29.6 H


Signature Car Sound, your local Authorised Premium Alpine Car Stereo Specialists and Installation Centres on the Sunshine Coast