Alpine S2-W8D2 Sub 8" 20cm S Series Subwoofer Dual 2 Ohm Voice Coils 300w RMS

The Alpine S2-W8D2 is an 8" (20cm) subwoofer from Alpine's S Series range, featuring dual 2 ohm voice coils and 300W RMS power handling with a carbon fibre and polypropylene cone.

This listing is the dual 2 ohm version. The S2-W8D2 is also available as the S2-W8D4 dual 4 ohm version.

Key specifications

• Size: 8" (20cm)
• Power handling: 300W RMS / 900W peak
• Voice coils: Dual 2 ohm, 3.55cm
• Frequency response: 23Hz – 215Hz
• Sensitivity: 82.7dB (1W/1m)
• X-Max (one-way): 13mm
• Sealed box volume: 5.1 – 15 litres
• Ported box volume: 10.8 – 20.7 litres
• Grille: Not included

The new 2023 S-Series subwoofers

Alpine's redesigned S-Series subwoofers apply technology from their higher-end subs to deliver deep, punchy bass at an accessible price. The S2-W8D2 handles up to 300W RMS, making it well suited to a wide range of car audio builds.

The redesigned cone combines carbon fibre and polypropylene for a lightweight yet rigid construction. A rubber High Amplitude Multi-Roll (HAMR) surround enables maximum excursion, and configuration jumpers allow straightforward wiring changes to suit your system. The S2-W8D2 works in both sealed and ported enclosures, giving you the choice between tight, precise bass or big, boomy output.

Performance & Value

With 300W RMS and 900W peak power handling, a frequency response of 23Hz to 215Hz, and a sensitivity of 82.7dB (SPL@1W/1m), the S2-W8D2 delivers accurate and powerful bass across a wide range of music genres.

HAMR Surround

Alpine's High Amplitude Multi-Roll (H.A.M.R.) surround technology allows the cone to move air efficiently while keeping temperatures in check. It provides 13mm of one-way linear excursion (X-Max) for accurate, low-distortion bass.

Enhanced Punch

The carbon fibre and polypropylene cone is both light and stiff, producing deep bass with low distortion and strong dynamic performance.

Flexible Application

Dual Voice Coil (DVC) wiring with easy configuration jumpers simplifies installation. A twist-lock grille mounting system allows an optional grille to be fitted and removed without mounting screws.

Perfect Power Match

Alpine recommends pairing the S2-W8D2 with the 600W S2-A60M mono amplifier for a single sub, or the 1200W S2-A120M amp when running two or more. You can also add an Alpine RUX-KNOB2 remote bass level control for convenient level adjustment from the driver's seat.

Sizes & Variations

The S-Series subwoofer range is available in 8", 10" and 12" sizes, each offered in dual 2Ω and dual 4Ω impedances.

Made for S-Series Amps & Subs

S-Series components are designed to work together as a matched system, covering amplifiers, subwoofers and speakers. The range is built for those who want genuine performance and Hi-Res Audio capability without an excessive outlay.