SBR-S8-4 Type-R 8″ (SWR-8D2, 4Ω) Enclosure System



Type-R 8″ (SWR-8D2, 4Ω) Enclosure System
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.
Loud, Clean Bass That Fits Anywhere


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 1/2” wide x 19 1/4” long x 5 1/2” 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 Handling 
  • Power Range: 150W – 350W
  • RMS Power Handling: 350W
  • Peak Power Handling: 1000W
  • Height: 483mm (19″)
  • Width: 283mm (11-1/8″)
  • Depth [including Grill]: 135mm (5-5/16″) [160mm (6-3/8″)]
  • Model: SBR-S8-4
  • Model: SWR-S8D-2D (wired in parallel, 4Ohm)
  • Model: KTE-8G
Enclosure Type
  • Material: 3/8″ MDF (3/4″ Front Baffle), Carpeted w/ Brushed Aluminum Trim
  • Design: Ported
  • Frequency Response: 30Hz – 200Hz