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Alpine SWS-12D4

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RRP: $249.00
Our Price: $239.00

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12" Type S Subwoofer

The new fourth-generation Type-S subwoofers have undergone a revolutionary redesign, leaning heavily on patented technologies developed for the Type-R series. The result is a subwoofer that is so good we had to redesign the Type-R. These new subwoofers redefine the expectations in their class. Altogether, they offer significantly improved output, deeper bass extension, more control and even greater power handling.



- Material: Oversized Hairline-Textured Mica Poly Dustcap w/ Kevlar Reinforced Pulp Paper Cone Body
- Design: 2-Piece Parabolic


- Material: Injected Moulded SantopreneA?
- Design: High Amplitude Multi-Roll H.A.M.R Surround Design (Patent Pending)


- Material: ConexA?
- Design: 10 Segment High-Roll Progressive Design

Voice Coil

- Material: 180A?C High Temp Wire on Spiral-Cut Aluminum Bobbin
- Design: 5-Layer Split-Winding Dual Voice Coil

Motor Structure

- Pole Geometry: FEA Optimised Underhung Design w/ Dual-Sided Compound Radius Pole Geometry
- Configuration: Dual Flared Design w/ Integrated Backplate Venting


- Material: 18GA High Strength Steel
- Design: Alpine-Designed 5 Leg Structure w/ Integrated Radial Voice Coil Vents


- Layout: One Sided
- Design: 8ga. Push Terminals

Tinsel Leads

- Design: Reinforced-Layer Spider Integration


- Design: Concealed Mount Gasket



Power Handling

- Power Range: 150W – 500 Watts
- RMS Power Handling: 500W
- Peak Power Handling: 1500W


- Mounting Depth: 177mm (7”)
- Mounting Diameter: 347mm (13.7”)
- Displacement: 0.07 cu. Ft.
- Added Volume: 0.15 cu. ft. (Reverse Mount, Magnet Out)


- Frequency Response: 24Hz – 200Hz

Recommended Enclosure Sizes

- Sealed enclosure: 25.5L
- Vented enclosure: 53.8L

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