Best RS W12d4 Deals of Nov 2026

Updated November 10, 2026Our site contains affiliate links for which we may be compensated.
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Alpine

15% Off

Alpine RS-W12D4 12-inch R-Series Shallow Subwoofer with Dual 4-Ohm Voice Coils

Alpine's RS-W12D4 12-inch R-Series Shallow Subwoofer with Dual 4-Ohm Voice Coils. With an ultra-shallow subwoofer design and powerful sound output, the R-Series Shallow Subwoofers give you the best of both worlds in size and sound.
A lightweight yet rigid aluminum dust cap allows the R-Series Shallow Subwoofer to transition sound quickly with minimal distortion and project the bass off the surface of the speaker for hard-hitting yet smooth bass performance.
Alpine’s Gen2 DD-Linear Magnetic Circuit technology, a compact and efficient dual-gap voice coil structure, allows for better control over the motor, resulting in lower distortion and precise bass control.
Don’t let the size fool you – the R-Series Shallow Subwoofers feature the same motor movement (20MM of excursion) as the full-size R2-Series Subwoofers for extreme output in a shallow woofer design.
At the heart of the R-Series Shallow Subwoofers is an oversized 4-inch voice coil that houses the lightweight and powerful neodymium magnet for 600W RMS of power handling.
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on Amazon.com
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Alpine

Alpine RS-W12D4 R Series 12 Dual 4-Ohm Shallow Subwoofer 600 Watts KTE-RS12G 12-Inche Grille for R Series Shallow Subwoofers Bundle

Compact Yet Powerful Bass: The Alpine RS-W12D4 12" R-Series Shallow Subwoofer delivers deep, precise bass performance in a slim design, making it ideal for vehicles with limited space.
Next-Gen Audio Technology: Alpine’s Gen2 DD-Linear Magnetic Circuit technology and dual-gap voice coil structure ensure lower distortion, precise bass control, and optimized motor movement.
Extreme Output & Efficiency: Despite its shallow profile, this subwoofer features an oversized 4-inch voice coil and a lightweight neodymium magnet, delivering 600W RMS power handling with 20mm excursion for extreme bass output.
Durable Subwoofer Protection: The Alpine KTE-RS12G Grille provides rugged protection with its powder-coated metal mesh design, ensuring your subwoofer stays safe from potential damage.
Seamless Installation & Premium Build: Featuring a die-cast aluminum frame for enhanced durability, the RS-W12D4 subwoofer pairs effortlessly with the KTE-RS12G grille’s snap-secure rubber screw cover for a sleek, professional look and hassle-free installation.
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Alpine

Alpine RS-SB12 12" Halo R-Series R2 Preloaded Subwoofer Enclosure | Preloaded bass package, easy plug-and-play install, deep low-end for daily drivers, matched woofer included

The next generation of sound performance is here with the new R-Series Halo Preloaded Subwoofers featuring the new R-Series “R2” subwoofers for more accurate and authoritative bass.
Unique ProLink Design – ProLink is unique to Alpine and allows you to link two R2-SB12V enclosures together using an optional KTX-H10 linking kit to create a dual subwoofer enclosure.
Stand Out in the Crowd – Drawing inspiration from the sleek, tapered lines and clean silver finish of the Alpine Halo display, the R2-SB12V shares the same unique, curved edges outlined by a silver trim and a metallic front baffle for a matching system aesthetic.
Improved Performance – The new R-Series subwoofers now feature larger, double-stacked magnets that contribute more motor force for deeper bass and tighter bass control compared to the previous generation.
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on Amazon.com
Our #1 Pick Today
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Alpine

15% Off

Alpine RS-W12D4 12-inch R-Series Shallow Subwoofer with Dual 4-Ohm Voice Coils

Alpine's RS-W12D4 12-inch R-Series Shallow Subwoofer with Dual 4-Ohm Voice Coils. With an ultra-shallow subwoofer design and powerful sound output, the R-Series Shallow Subwoofers give you the best of both worlds in size and sound.
A lightweight yet rigid aluminum dust cap allows the R-Series Shallow Subwoofer to transition sound quickly with minimal distortion and project the bass off the surface of the speaker for hard-hitting yet smooth bass performance.
Alpine’s Gen2 DD-Linear Magnetic Circuit technology, a compact and efficient dual-gap voice coil structure, allows for better control over the motor, resulting in lower distortion and precise bass control.
Don’t let the size fool you – the R-Series Shallow Subwoofers feature the same motor movement (20MM of excursion) as the full-size R2-Series Subwoofers for extreme output in a shallow woofer design.
At the heart of the R-Series Shallow Subwoofers is an oversized 4-inch voice coil that houses the lightweight and powerful neodymium magnet for 600W RMS of power handling.
Details & specs
Check Price
on Amazon.com
Disclaimer: While we make every effort to ensure accuracy, we cannot guarantee that all product specifications, pricing, discounts, and details are complete or error-free. Because information is subject to change, we recommend verifying all details directly with the retailer prior to making a purchase. As an Amazon Associate, we earn from qualifying purchases.

5 RS W12d4 deals are available from: Amazon, starting from $39.95.

The biggest discount we found is 15% on Alpine RS-W12D4 12-inch R-Series Shallow Subwoofer with Dual 4-Ohm Voice Coils (RS-W12D4) at Amazon.

The lowest price we found is $39.95 while the highest is $1,499.90. Prices for the best RS W12d4 deals average at $811.13.