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Alpine® 8" Type R Enclosed Subwoofer

Model #: SBR-S8-4
At a Glance

The SBR-S8-4 8” Enclosed Subwoofer lets you add deep, accurate bass to your sound system without taking up much space in your vehicle.

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$99,999.00Save $NaN

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Get to know this product.

Type-R Technology

The SBR-S8-4 uses the same 8" subwoofer available in the Type-R component subwoofer lineup, so you get high excursion combined with high power handling. This advanced Type-R Motor structure converts your amplifier's output to low bass you can feel.

More Bass, Less Space

The SBR-S8-4 is compact and very shallow (only 11.5" Wide x 19.35" long x 5..5" deep) allowing it to be mounted in virtually any vehicle. This compact subwoofer system works well under or behind the seat of a pickup truck, in a sedan trunk, or in the hatch of an SUV.

Tuned To Rock

In order to play low with minimal power input requirements, the SBR-S8-4 is ported. A low tuning frequency combined with an efficient large cross-section port allows the system to play down to the lowest octaves while still maintaining excellent control and power handling characteristics.

Killer Cosmetics

High-quality carpeting and sleek laminate combine to give the SBR-S8-4 great looks. A strong, attractive Type-R grille protects the woofer's cone from damage, and the flush-mount spring-loaded terminals make connecting large-gauge wire a snap.

Durable Construction

Unlike many low-cost enclosures, the SBR-S8-4 is constructed from the best materials. High-quality MDF is used for all structural components, and it is internally braced to add stiffness and durability.

Amp It Up

350 watts of RMS power handling make the SBR-S8-4 compatible with a wide range of mono and multi-channel amplifiers. For example, hook it to the subwoofer channel on the 5-Channel Alpine MRX-V60, or connect it to two-bridged channels on an Alpine MRX-F30... either way you'll get great low bass performance.



Power Range150W-350W
RMS Power Handling350W
Peak Power Handling1000W
Height483mm (19")
Width283 (11-1/8")
Depth (Including Grill)135mm (5-5/16") (160mm (6-3/8"))
Frequency Response30Hz-200 Hz
Woofer ModelSWR-S8D-2D
Grill ModelKTE-8G
Enclosure Material3/8" MDF (3/4" Front Baffle), Carpeted with Brushed Aluminum Trim
Enclosure DesignPorted

Misc. Specs

Width (in.)11.13
Depth (in.)6.38
Height (in.)19
Subwoofer SizeUp to 8"
WarningProposition 65 Warning for California Residents