Please wait...
Please wait...
Our website uses cookies so that you can place orders and we can provide a better service. Continue to use the site as normal if you're happy with this, or find out how to manage cookies.
Please wait...
Click to Close

Fit it Yourself?

Everything you need to fit it yourself at home

Only £30.00 

With Steering Wheel Control
Only £50.00 

 Alpine SWX-1243D

Alpine SWX-1243D 12" 1000 watts RMS subwoofer

£304.99 Save £95.00 (24%)  was:£399.99
5 Stars 5
Quickfind Code - 25790
Save £95.00 (24%)
rrp: £399.99
This product has been discontinued

  • Free Car Air Freshener with every order Free Car Air Freshener with every order
  • Next Day Delivery available on all order before 5pm Next Day Delivery available on all order before 5pm
  • Easy Returns Easy Returns
  • 1 Year Easy Warranty 1 Year Easy Warranty

Click image to zoom

Sorry, this product has been discountinued. We recommend the following product.

Car Audio Centre Please Contact us for a replacement for this Item
Car Audio Centre Discontinued

Key Features

12" 1000 watts RMS subwoofer - Alpine SWX-1243D

Alpine SWX-1243D 1000 watts RMS 12" subwoofer

Feed your Alpine Type-X SWX-1243D subwoofer some serious power, and it'll unleash powerful bass to enhance your journey. And Alpine's advanced design, quality materials, and rigorous construction ensure that you'll get years of reliable use.

The SWX-1243D 12' subwoofer features a 3-layer cone � a layer of Kevlar�, a layer of plastic film, and a bottom layer of pulp reinforced with Kevlar. This design provides outstanding response and accuracy, while the cone's parabolic shape maintains rigidity and strength. The multi-roll Santoprene� rubber surround maximizes the cone's performance with its ability to go deep. The concealed mounting gasket gives your sub installation a clean look.

On the inside, the SWX-1243D is all business. A massive, triple-stacked strontium magnet anchors the sub, while the single-piece cast aluminum frame and motor support holds provides the backbone you'll need for big bass. Increased venting and heat dissipation areas keep your sub running cool, so it'll survive conditions that would destroy lesser speakers. This bruiser can handle up to 1,000 watts RMS, so don't hesitate to give it some juice.

You can wire the dual 4-ohm voice coils to get the optimum performance from your amp, or to configure a custom setup with multiple subwoofers. Rock the bass the way you want to with the mighty Type-X subwoofer.

Note: If you are wiring this DVC sub for lower impedance, make sure that your amp is compatible. Most 2-channel car amplifiers are stable down to 2 ohms in standard mode, or 4 ohms in bridged operation.

Alpine SWX-1243D features

  • 12' subwoofer with dual 4-ohm voice coils
  • pulp/fiber cone reinforced with Kevlar and a layer of Rohacell� plastic film
  • Santoprene rubber surround
  • cast aluminum frame
  • power range: 500-1,000 watts RMS (500 watts per coil)
  • peak power handling: 3,000 watts
  • frequency response: 24-200 Hz
  • sensitivity: 84 dB
  • top-mount depth: 8-11/16'
  • sealed box volume: 0.65-1.25 cubic feet
  • ported box volume: 1.0-2.0 cubic feet

Download image of Alpine SWX-1243D Click here for Image of Alpine SWX-1243D
Please wait...
Customer reviews

There are no customer reviews yet.

Write a review
Review Title: 

How many would you give this product?

Newsletter sign up

Fitting Services

Need help with Installation?

Here at CarAudioCentre we offer a professional and reputable fitting service in all our stores. For all fitting enquiries and bookings please visit or call one of our nationwide stores. Our fitters can install your new car stereo, DAB radio, audio visual, speakers, subwoofers or amplifier. We can also help to connect your iPod or MP3 player to you existing audio unit and can offer the best advice on the right in-car entertainment for your vehicle, to further this more we also offer a total 100% custom installation service for demo and show vehicles. So if you have an idea come on in and run it past us, the possibilities are endless and we are never too busy for an enthusiastic chat about our favourite subject.

Please note:

"That our two year warranty on products is only applicable to purchases made directly from us and that have been fitted in one of our stores."

Our Stores:

542 546 Mansfield Road, Sherwood NG5 2FR
Tel: 0115 9624 986
743-745 Eastern Ave, Newbury Park, London, IG2 7RT
Tel: 0208 599 2368
835 Garratt Lane, Tooting, London, SW17 0PG
Tel: 0208 971 9181