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  • Alpine SWA-12S4 Bassline 12" Car Subwoofer
  • Alpine SWA-12S4 Bassline 12" Car Subwoofer
  • Alpine SWA-12S4 Bassline 12" Car Subwoofer

Alpine SWA-12S4 Bassline 12" Car Subwoofer

Product Code : SWA12S4

List Price: $159.00 On Sale: $118.85 (GST Included) (You save 25.25%)

$9.95 Flat Rate Generally ships out in 24 to 48 hours.

Expected Soon

Product Info

Product Info

Please Note: This Alpine product is part of our Clearance and is only available in limited quantities. This is a limited offer and is available only while stocks last. This product may have already sold out and there are no rain checks offered on clearance items.

Check out the Alpine SWA-12S4 Bassline 12" Car Subwoofer's Key Features
(Alpine SWA12S4)

  • 12 Month Australian Warranty
  • Risk Free Purchase Guarantee (bottom of page)
  • 12" Bassline Subwoofer
  • 4 Ohms
  • 750 watts Peak Power
  • 250 watts RMS
  • Progressive Wavelet Ribs (P.W.R.) cone
  • High Strength Steel Frame
  • Polypropylene and mica damped cone assembly
  • High-Excursion Poly-Foam surround
  • Progressive Polyester Spider
  • 8-gauge Push Terminals
  • 2" Aluminium Voice Coil
  • 2 Piece Yoke with Vented Pole Motor Structure


The Alpine SWA-12S4 subwoofer is as close as it gets to the best that Alpine can produce, with 750 watts of peak power handling you will need a good amplifier that can handle big power output to give you a great sound system.

This Bassline subwoofers use a polypropylene and mica damped cone to keep the cone light for great sounding bass tone. The high excursion poly-foam surround allows huge amount of power to give clearer and more powerful sound.


Alpine Car Audio

Alpine is widely recognised as a leader in premium car audio products. Their reputation for quality and innovation has been built over several decades of producing the finest car audio products including car stereos, speakers, amplifiers, subwoofers, navigation and integration systems. If you want to ensure performance and clarity for your vehicle's audio system then check out our great range Alpine products!


Peace of Mind Purchase Guarantee & Declaration of Warranty
This product is directly imported and is offered with a full Australian 12 month warranty. (You may also be entitled to other consumer warranties as provided by the Australian Consumer Guarantee and these entitlements are not limited by this warranty). In the event that this product should fail please contact our service department to arrange service for this product.

We are not linked or associated with Alpine Car Audio.

Our decision to import this product is in line with our company objectives to 'Offer our customers the very best prices on the world's biggest brands' and 'Make sure our service is second to none'.

This product will be shipped from our Sydney Warehouse. This product is NOT DROP SHIPPED from overseas.

Tech Specs

Technical Specifications

Power Handling

  • Peak Power: 750 watts
  • RMS Power: 250 watts


  • Frequency Response: 22 Hz to 200 Hz
  • Impedance: 4 ohms
  • Mount Depth: 269mm diameter x 141mm depth


  • Cone Material: Progressive Wavelet Ribs (P.W.R.) cone
  • Voice Coil: 2" Aluminium Voice Coil
  • Frame: High Strength Steel Frame
  • Magnet:
In The Box

What's Included?

  • Alpine SWA-12S4 Bassline 12" Car Subwoofer

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