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AudioControl  Dual 8" Sealed Under Rear Seat EPICX Series Subwoofer Bass Package for 2007-2021 Toyota Tundra Double-Cab

GS-DTOYXL28B Black 8" Dual Sealed Enclosure for 2007-2021 Toyota Tundra Double-Cab (under rear seat) + (2) EPIC X8D4 EPICX Series 8" 600W Peak Power Handling 4 Ohm, Dual Voice Coil Component Car Subwoofer

Item #99501

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) EPIC X8D4 EPICX Series Subwoofers
  • 600W Peak Power Handling
  • 4 Ohm
  • Dual Voice Coil

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

$558.00

Reg. Price $818.00  Save $260.00
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) AudioControl EPIC X8D4 EPICX Series 8" 600W Peak Power Handling 4 Ohm, Dual Voice Coil 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
  • • EPIC X8D4 (2) 8" EPICX Series Dual Voice Coil Component Car Subwoofer
  • EPIC X8D4 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.

Precision Engineered for Power, Speed, and Control

Built for serious bass enthusiasts, this system is engineered to turn raw amplifier power into clean, aggressive low-frequency output that you can feel with every beat. Its advanced motor design enhances efficiency and output for stronger, more controlled performance that hits with authority. A lightweight, high-temperature voice coil ensures fast response and reliable thermal handling, allowing consistent bass delivery even under extreme power demands.

Tuned for Deeper Bass and Maximum System Flexibility

Built for serious audio enthusiasts, this system is engineered to integrate seamlessly with bass restoration processors for deeper, more powerful low-frequency output that transforms your listening experience. Its dual voice coil design provides flexible wiring options, allowing easy impedance matching for better amplifier efficiency and overall system performance. Designed for versatility and control, it gives you the freedom to fine-tune your setup for clean, hard-hitting bass in any configuration.

Clean, Controlled Bass Built for Real Performance

Engineered for serious bass demand, this system is built to handle high power levels while delivering smooth, accurate low-frequency output that stays tight and controlled. Every detail is focused on performance, giving enthusiasts the strong, dynamic response needed for deep, impactful bass that feels alive in any setup. Designed for reliability and punch, it brings together power handling and precision for a truly elevated audio experience.


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) EPIC X8D4 EPICX Series 8" 600W Peak Power Handling 4 Ohm, Dual Voice Coil Component Car Subwoofer

 

Features:

  • Bass in Your Face: High-Precision Motor Assembly maximizes efficiency and output, converting amplifier power into powerful, impactful bass
  • Feel the Rush Performance: High-temperature, lightweight voice coil delivers fast, accurate bass response with strong thermal durability under extreme power
  • EPIC System Integration: Designed to pair with the EPICENTER bass restoration processor for deeper, more powerful low-frequency performance
  • Flexible Wiring Options: Dual voice coil design allows multiple impedance configurations for optimal amplifier matching
  • High-Output Engineering: Built to handle demanding power levels while maintaining clean, controlled bass response
  • Performance-Driven Design: Optimized for enthusiasts seeking strong, dynamic, and responsive low-frequency output

 

Specifications:

  • Speaker Size: 8 in / 200 mm
  • Power: 400W RMS / 600W Max
  • Impedance: 2 or 4 Ohms
  • Voice Coil: 2 in
  • Resonance Frequency: 47.2 Hz
  • Efficiency: 83.5 dB
  • Magnet Dimensions: 5.31 × 2.44 × 0.98 in / 135 × 60 × 25 mm
  • Overall Diameter: 8.46 in / 215 mm
  • Cut Out Diameter: 7.13 in / 181 mm
  • Mounting Depth: 4.1 in / 103.9 mm
  • Mounting Height: 0.8 in / 20 mm
  • Motor Diameter (with Cover): 5.5 in / 140 mm

 

  • UPC:
  • Weight: 53
  • 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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