Alpine S-W12D2 S-Series 12″ Dual 2 Ohm Subwoofer

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S-Series 12″ Dual 2 Ohm Subwoofer

Alpine introduces the all-new S-Series Subwoofers, their unique design substantially improves bass output and provides installation versatility. Available in a twelve, ten and eight inch each S-Series subwoofer uses a custom-stamped steel frame. These high-strength frames were designed to withstand the rigors of the improved S-Series motor. They have frame leg vents as well as a vented back plate to help cool the subwoofer voice coil and motor parts, plus a shallow design to help fit in smaller spaces.

The S-Series Subwoofers incorporate two strontium ferrite magnets that are stacked together, providing increased motor strength and excursion which ultimately delivers and accurate bass to your music. Installation time will be significantly reduced with the convenient push-type insert terminals with dual voice coil jumper system. Just strip the speaker insulation at the wire end, then insert the bare wire into the hole of the spring-loaded push terminal. While the concealed mount gasket system creates a clean, finished appearance for any vehicle.

All S-Series subwoofers are compatible with optional grilles (sold separately) to provide added protection to the cone. The grilles feature a mesh design with a S-Series logo badge.

12” 2Ω+2Ω Subwoofer
High Strength Custom Steel Frame
Push-Type Insert Terminals
Dual Voice Coil Jumper System
Concealed Mount Gasket System
Strontium Ferrite Double Stacked Magnets
Optional Grilles

Material: Pulp/Kevlar Cone
Design: Reinforced Parabolic Cone Structure with PP/Mica/Talc Dust Cap

Design: High Amplitude Multi-Roll (HAMR Surround)

Design: Progressive with Reinforced Layer Tinsel Leads
Voice Coil

Material: 5-Layer DVC Winding on AL Former
Design: 65mm Voice Coil with High-Temp
High-Excursion Underhung Voice Coil Configuration
Motor Structure

Pole Geometry: Airflow Optimized Dual Flare Pole Vent
Perimeter Venting with Airflow Management System
Configuration: Double-Stacked Strontium Ferrite Magnets

Material: High Strength Steel Frame

Layout: One Side
Design: 8AWG Push Terminals with VC Configuration Jumpers
Tinsel Leads

Design: Reinforced Layer Spider Integration

Design: Concealed Mount Gasket
Power Handling

Power Range: 600W-1800W
RMS Power Handling: 600W
Peak Power Handling: 1800W

Mounting Depth: 5-1/16”

Frequency Response: 24Hz-200Hz
Recommended Box Enclosures

Recommended Sealed Box: 0.85 cubic foot (gross volume)
Recommended Vented Box: 1.71 cubic foot (gross volume), 12.5” x 1” vent area, 16” vent length

Thiele-Small Parameters

Sensitivity (1W/1m) – SPL

DC Resistance – Re

Inductance – Le

Free Air Resonance – Fs

Equivalent Stiffness – Vas

Mechanical Q – Qms

Electrical Q – Qes

Total Q – Qts

Cone Area – Sd

Linear Excursion – Xmax (1-way)

Mechanical Travel – Xmech (P-P)

Extra Information