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Alpine Rear Angle Sealed Triple 12" W12S4 Loaded Subwoofer Sub Box Enclosure 750W RMS 4 Ohm

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Key item features

ALPINE W12S4 BASSLINE MASSIVE 12-INCH BASS OUTPUT - The Alpine W12S4 BassLine subwoofers deliver deep, hard-hitting, and accurate bass that transforms any vehicle’s audio system. Each 12-inch woofer produces rich low-end impact without muddying vocals or mids. The rugged construction ensures reliable performance during daily use. They maintain clarity even at high listening volumes. This setup provides a major upgrade over factory audio.
TRIPLE CHAMBER DESIGN FOR EXTREME BASS PERFORMANCE - The enclosure features three isolated chambers, one for each subwoofer, maximizing clarity and precision. This layout reduces internal interference for stronger, more controlled bass. It enhances low-frequency depth across all music genres. The triple-chamber build ensures consistent performance at any volume. Bass lovers will appreciate the increased output and tight response.
REAR-ANGLE ENCLOSURE FOR OPTIMAL SOUND PROJECTION - The angled rear design helps direct bass forward for improved cabin acoustics. This layout enhances low-end dispersion in trucks, SUVs, and large vehicles. It fits securely against rear walls for space-efficient installation. The angle boosts bass energy and listening impact. This design supports smoother in-car bass distribution.
STRONG AND VIBRATION-RESISTANT CONSTRUCTION - Built from high-quality materials, the enclosure minimizes flex and vibration for cleaner bass reproduction. It withstands temperature changes, road movement, and long-term use. The sturdy frame protects all three subwoofers from cargo impact. This ensures stable, dependable performance over years of use. The box is engineered for maximum structural integrity.

Specs

Rms power rating
250 W
Woofer size
12 in
Subwoofer type
Subwoofer
Brand
Alpine
Subwoofer enclosure type
Sealed
Impedance
4 ohm

Current price is $394.95

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Sold and shipped by HiFiSoundConnection

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About this item

Product details

This Package includes the following:

1 x 312H Car Audio Triple 12" Sealed Subwoofer Rear Angle 3 Sub Box Stereo Enclosure
3 x Alpine W12S4 Car Audio BassLine Series Sub Single 4 Ohm 500W Peak 12" Subwoofer

Car Audio Triple 12" Sealed Subwoofer Rear Angle 3 Sub Box Stereo Enclosure

Features:

Triple 12" Subwoofer Enclosure
- Mounting Depth: 6"
- Sealed Enclosure
- Dimensions: Width 34-3/4" x Height 14-3/4" x Depth One 16" x Depth Two 19-3/4"
Constructed with High Quality MDF
(3) High Quality Binding Terminal Cups (Accepts Banana Terminal Plugs OR Bare Wire 'up to 10GA')
High Quality Charcoal Carpet

Alpine W12S4 Car Audio BassLine Series Sub Single 4 Ohm 500W Peak 12" Subwoofer

General Features:

12" Single 4 ohm BassLine (Bass) Series Subwoofer
Subwoofer Series: BassLine (Alpine)
Subwoofer Size: 12"
Peak Power Handling: 750 watts
RMS Power Handling: 250 watts
Voice Coil(s): Single
Impedance (Per Voice Coil): 4 ohms
Voice Coil Diameter: 2"
Frequency Response: 22 - 200 Hz
Sensitivity: 87.9 dB
Xmax (millimeters): 10 mm
Subwoofer Design: Round / Circle
Main Cone Color: Black
Woofer Composition: Mica Injected Polypropylene - MIPP
Woofer Surround: Poly-Foam
Subwoofer Grille: Optional (Accessory required and sold separately) Alpine KTE-12PG

ALPINE W12S4 BASSLINE MASSIVE 12-INCH BASS OUTPUT - The Alpine W12S4 BassLine subwoofers deliver deep, hard-hitting, and accurate bass that transforms any vehicle’s audio system. Each 12-inch woofer produces rich low-end impact without muddying vocals or mids. The rugged construction ensures reliable performance during daily use. They maintain clarity even at high listening volumes. This setup provides a major upgrade over factory audio.
TRIPLE CHAMBER DESIGN FOR EXTREME BASS PERFORMANCE - The enclosure features three isolated chambers, one for each subwoofer, maximizing clarity and precision. This layout reduces internal interference for stronger, more controlled bass. It enhances low-frequency depth across all music genres. The triple-chamber build ensures consistent performance at any volume. Bass lovers will appreciate the increased output and tight response.
REAR-ANGLE ENCLOSURE FOR OPTIMAL SOUND PROJECTION - The angled rear design helps direct bass forward for improved cabin acoustics. This layout enhances low-end dispersion in trucks, SUVs, and large vehicles. It fits securely against rear walls for space-efficient installation. The angle boosts bass energy and listening impact. This design supports smoother in-car bass distribution.
STRONG AND VIBRATION-RESISTANT CONSTRUCTION - Built from high-quality materials, the enclosure minimizes flex and vibration for cleaner bass reproduction. It withstands temperature changes, road movement, and long-term use. The sturdy frame protects all three subwoofers from cargo impact. This ensures stable, dependable performance over years of use. The box is engineered for maximum structural integrity.

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Specifications

Rms power rating

250 W

Woofer size

12 in

Subwoofer type

Subwoofer

Brand

Alpine

Warranty

Warranty information

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