Beginner — under 30 min
Description
The Alpine S-W12D4 subwoofer features a 12-inch dual 4-ohm voice coil design with a Pulp/Kevlar cone and High Amplitude Multi-Roll (HAMR) surround for robust bass reproduction. The included sealed enclosure is constructed from 5/8" MDF wood and produces tight, quality bass.
The Alpine S2-A60M amplifier provides up to 600W RMS of power and is designed with an improved heat sink and protection circuit to prevent thermal shut-down, ensuring reliable performance. The Harmony Audio HA-AK4 kit includes all necessary wiring and a 150-amp fuse for installation.
Fitment
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Available on iOS & Android
Specifications
| Brand | Alpine |
| Part Number | ALPINE-PACK439A-AMP |
| Category | Exterior Components |
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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