Mobile Electronics› Power Accessories

Alpine

USB Charger

$119.95

SKU: W12S4

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return

Overview

The Alpine W12S4 is a 12-inch car subwoofer designed to deliver powerful bass. It features a polypropylene and mica cone with a poly-foam surround for durability and sound quality.

With 250W RMS and 750W peak power handling, this subwoofer is engineered for robust performance. It has a mounting depth of 5-5/16 inches and is recommended for sealed enclosures around 1.09 cu. Ft. or ported enclosures around 1.91 cu. ft.
Show original supplier description
The Alpine W12S4 is a 12-inch, single 4-ohm subwoofer built for car audio enthusiasts seeking impactful bass on a budget. Engineered for efficient performance, the W12S4 boasts 250 watts of RMS power handling and can handle peaks of up to 750 watts. Its optimized magnet circuit focuses magnetism for improved efficiency, resulting in tighter bass control and enhanced output. The subwoofer has a mounting depth of 5-5/16 inches and is recommended for enclosures with a sealed volume of 1.09 cubic feet or a ported volume of 1.91 cubic feet.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandAlpine
Part NumberW12S4
CategoryMobile Electronics

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

Returns & Fitment

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.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy