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Alpine SWR-12D4 – 1000W 12″ Type-R Dual 4 ohm Subwoofer

$279.95 $151.99


The Alpine SWR-12D4 may appear small but it delivers on big benefits. The fifth-generation subwoofer provides users with impressive power… (see full description)

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SKU: SWR-12D4 Categories: ,


The Alpine SWR-12D4 may appear small but it delivers on big benefits. The fifth-generation subwoofer provides users with impressive power handling coupled with deeper bass sound, cleaner output, and superior control than its predecessors, even competitors.

Even for its small size – 6.375” mounting depth and 10.875” mounting diameter – the unit delivers more bass power while fitting into most places. Such installation and application flexibility means that the subwoofer delivers more bang for the buck without compromising on high-performance output.

High-Amplitude Multi Roll

With the innovative High-Amplitude Multi Roll (HAMR) technology, you can expect higher excursion and higher output from the new Type-R subwoofer. You will find that the subwoofer delivers the best in sound quality, bass output and low distortion in its class – truly, must-have qualities for subwoofers within the price range.

The motor force in the Alpine SWR-12D4 also means more control, thus, the cleaner bass sound that many customers attest makes for easy listening. Even with hours and hours of music, the subwoofer holds up its end because of its radial vented VC heatsink technology coupled with the airflow management system.

Aluminium Frame

Basically, the unit remains cool because air is forced into its interiors, thus, allowing for playing even in high heat and humidity conditions for hours on end. You can subject the subwoofer to extreme applications – in an enclosure or in open air – and it will still deliver on the deep bass you have come to expect from Alpine.

You will also find the subwoofer to be durable, thanks to its one-piece cast aluminium frame and injection-molded Santoprene components. The unit’s black body makes it so easy to blend in with all your other stereo sound system components, thus, providing for ease of installation and connection with the rest. You should pair the Alpine SWR-12D4 with PDX digital amplifiers for the best performance.

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Additional information

Subwoofer Specifications:

See Below

Subwoofer Series

Type-R (Alpine)

Subwoofer Size


Peak Power Handling

3000 watts

RMS Power Handling

1000 watts

Voice Coil(s)


Frequency Response

24 – 200 Hz


85 dB

Xmax (millimeters)

20 mm

Subwoofer Design

Round / Circle

Main Cone Color

Dark Gray

Woofer Composition

Kevlar Fiber

Woofer Surround

Santoprene Rubber

Subwoofer Grille

Optional (Accessory required and sold separately) Alpine KTE-12WG

Re-Cone Kit Available


Recommended Enclosure Type

Ported / Vented Sealed

Minimum Sealed Box Volume

0.65 cubic feet

Maximum Sealed Box Volume

1.25 cubic feet

Minimum Ported Box Volume

1.0 cubic feet

Maximum Ported Box Volume

2.0 cubic feet

Top-Mount Depth


Cutout Diameter


Shallow Mount Installation


Extended Warranty



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