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Kicker  Dual 8" Sealed Under Rear Seat CompRT Series Subwoofer Bass Package for 2007-2021 Toyota Tundra Double-Cab-1 New

GS-DTOYXL28B Black 8" Dual Sealed Enclosure for 2007-2021 Toyota Tundra Double-Cab (under rear seat) + (2) 48CWRT84 CompRT Series 8" 600W Peak Power Handling 4 Ohms, Dual Voice Coil Shallow Mount Component Car Subwoofer

Item #99503

Condition:   Brand New

Product Highlights

  • GS-DTOYXL28B
  • Dual 8"
  • Sealed Enclosure
  • 2007–2021 Toyota Tundra Double-Cab Fit
  • Under Rear Seat Design
  • Black Finish
  • (2) 48CWRT84 CompRT Series Subwoofers
  • 600W Peak Power Handling
  • 4 Ohms
  • Dual Voice Coil
  • Shallow Mount Design

  Free 2-Years Warranty Included!
60 DAYS Returns Accepted.
FREE Lifetime Tech Support.
FREE Shipping.
60 DAYS Price change protection.

$623.90

Reg. Price $959.98  Save $336.08
60 DAYS Returns Accepted.
FREE Lifetime Tech Support.
FREE Shipping.
60 DAYS Price change protection.

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Onlinecarstereo Exclusive Bundle

This exclusive package is brought to you by Onlinecarstereo. We have put together this bundle to kickstart your vehicle to the path of excellent car audio.

Ground Shaker GS-DTOYXL28B Black 8" Dual Sealed Enclosure for 2007-2021 Toyota Tundra Double-Cab (under rear seat) + (2) Kicker 48CWRT84 CompRT Series 8" 600W Peak Power Handling 4 Ohms, Dual Voice Coil Shallow Mount Component Car Subwoofer


Authorized Dealer Stamp

We are an authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!

What's Inside?
  • • GS-DTOYXL28B 8" Dual Sealed Enclosure
  • • GS-DTOYXL28B Owner's Manual
  • • 48CWRT84 (2) 8" CompRT Series Dual Voice Coil Component Car Subwoofer
  • • 48CWRT84 Kicker logo sticker
  • • 48CWRT84 (8) Adhesive backed screw covers
  • • 48CWRT84 Screw cover installation instructions
  • • 48CWRT84 Template on box
  • 48CWRT84 Owner's Manual
Alpine_PWE-S8
Clean Truck Bass Upgrade That Hits Hard

The Ground Shaker GS-DTOYXL28B is built for truck owners who want real bass without giving up space in the cabin. Designed as an under-rear-seat dual enclosure, it keeps everything tucked away and clean while still delivering deep, controlled low-end output. The upward-firing design helps push bass into the cabin so you feel every note without rattles or muddy sound.

Built Strong for Daily Bass Performance

Made from durable 5/8" high-quality MDF wood, this enclosure is designed to handle heavy bass while staying tight and solid over time. It features 1.32 ft³ total air volume with two separate chambers (0.66 ft³ per sub), giving each woofer the right space for balanced performance. Airtight sealing with Titebond silicone and premium wood glue helps lock in clean, accurate bass response even at higher volume levels.

Alpine_PWE-S8
Clean Install, Factory Look, Serious Output

Wrapped in a rugged trunk liner carpet finish, the GS-DTOYXL28B blends nicely with your truck interior while staying protected from daily wear. Dual binding post terminals make wiring simple and secure, and the compact under-seat design keeps your cabin functional and clutter-free. Just note, this enclosure is not compatible with Crew-Max models—but for Double Cab setups, it’s a clean, hard-hitting bass solution that performs way bigger than it looks.

 

 

Kicker_KMTC&KMFC
Slim, Powerful, and Built for Any Environment

Experience big bass from a slim, all-weather design engineered for tight spaces and tough conditions. Dual 4-Ohm voice coils provide flexible wiring options for easy amplifier matching and optimized system performance.

Engineered for Strength and Precision

Built to perform anywhere, the UV-resistant cone and surround deliver lasting durability in any environment. SoloKon cone technology fuses the cone to the vented back brace, creating a rigid, distortion-free structure that enhances cooling and ensures clean, accurate bass.

Kicker_KMTC&KMFC
Kicker_KMTC&KMFC
Built Tough for Long-Lasting Performance

Red double stitching reinforces the connection between the Santoprene surround and polypropylene cone for superior durability, while the forced-air cooling system keeps the subwoofer up to 20% cooler—ensuring reliable, long-lasting performance even under heavy loads.


SPECIFICATIONS


  • Vehicle Make : Toyota
  • Vehicle Model : Tundra

FEATURES


GS-DTOYXL28B Black 8" Dual Sealed Enclosure for 2007-2021 Toyota Tundra Double-Cab (under rear seat)

 

Features:

  • 5/8" HIGH QUALITY MDF WOOD: Durable construction for strong, clean bass performance.
  • CARPETED WITH DURABLE TRUNK LINER FINISH: Provides protection and a sleek, factory-style appearance.
  • SEALED WITH HIGH QUALITY TITEBOND SILICONE: Ensures airtight performance for precise low-frequency response.
  • GLUED WITH HIGH QUALITY TITEBOND WOOD GLUE: Offers long-lasting structural integrity.
  • 2 BINDING POST TERMINALS: Secure and reliable connections for your subwoofers.
  • FITS UNDER REAR SEAT: Space-saving design for a clean, hidden installation.
  • UPWARD FIRING: Optimized for in-cabin sound projection.
  • WILL NOT FIT CREW-MAX: Not compatible with Crew-Max models.

 

Specifications:

  • Cutout Diameter: 7 1/8"
  • Air Volume: 1.32 ft³
  • Chambers: 2 individual
  • Volume per Subwoofer: 0.66 ft³
  • Weight: 33 lbs
  • Mounting Depth: 5"
  • Height: 5 1/4"
  • Length: 49 1/4"
  • Depth: 15 1/4”

 

 

(2) 48CWRT84 CompRT Series 8" 600W Peak Power Handling 4 Ohms, Dual Voice Coil Shallow Mount Component Car Subwoofer

 

Features:

  • All-Weather Thin Design: Slim, versatile profile built to deliver powerful bass in tight spaces or extreme environments.
  • Dual 4-Ohm Voice Coils: Enables flexible wiring options for seamless amplifier matching.
  • UV-Resistant Cone and Surround: Ensures consistent performance and durability in any condition.
  • SoloKon Cone Technology: Fuses the cone to the vented back brace, forming a rigid, distortion-free structure that enhances cooling.
  • Red Double Stitching: Creates a strong, lasting bond between the Santoprene surround and polypropylene cone for improved reliability.
  • Forced-Air Cooling System: Keeps the sub running up to 20% cooler, extending longevity under heavy load.
  • Advanced Suspension & Heat Management: Maintains deep, controlled bass output during extended play.
  • Sealed or Vented Box Compatibility: Optimized for sealed enclosures, but capable of powerful output in vented setups.

 

Specifications:

  • Size: 8" (20 cm)
  • Impedance: 4 Ohm (Dual Voice Coil)
  • Recommended Amplifier Power (RMS): 300 watts
  • Peak Power (ANSI/CTA-2031-A): 600 watts
  • Sensitivity (1w/1m): 81.8 dB
  • Mounting Depth: 2-11/16" (6.7 cm)
  • Mounting Diameter: 7" (17.7 cm)
  • Minimum Sealed Box Volume: 0.2 cu. ft (5.66 L)
  • Maximum Sealed Box Volume: 1.0 cu. ft (28.32 L)
  • Minimum Vented Box Volume: 0.8 cu. ft (22.7 L)
  • Maximum Vented Box Volume: 1.2 cu. ft (34 L)

 

  • UPC:
  • Weight: 48.2
  • Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 2 Year(s) from the original date of purchase with proper return authorization.

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