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Alpine  Dual 8" Sealed S-Series Subwoofer Bass Package for 2014-2021 Toyota Tundra Crew-Max New

GS-TOYCR28B Black 8" Dual Sealed Enclosure for 2014-2021, Toyota Tundra Crew-Max + (2) S2-W8D4 S Series 8" 1000W Power Peak Handling 4 Ohms, Dual Voice Coil Component Car Subwoofer

Item #99531

Condition:   Brand New

Product Highlights

  • GS-TOYCR28B
  • Dual 8"
  • Sealed Enclosure
  • 2014-2021 Toyota Tundra Crew-Max Fit
  • Black Finish
  • (2) S2-W8D4 S Series Subwoofers
  • Component Car Subwoofer
  • 1000W Peak Power Handling
  • 4 Ohms
  • Dual Voice Coil

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

$650.90

Reg. Price $949.90  Save $299.00
60 DAYS Returns Accepted.
FREE Lifetime Tech Support.
FREE Shipping.
60 DAYS Price change protection.

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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-TOYCR28B Black 8" Dual Sealed Enclosure for 2014-2021, Toyota Tundra Crew-Max + (2) S2-W8D4 S Series 8" 1000W Power Peak Handling 4 Ohms, 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-TOYCR28B 8" Black Dual Sealed Enclosure
  • • GS-TOYCR28B Owner's Manual
  • • S2-W8D4 (2) 8" Dual 4-ohm voice coil subwoofer
  • • S2-W8D4 Trim ring (installed)
  • • S2-W8D4 (4) 3" jumper cables (each has a single banana connector on each end)
  • • S2-W8D4 Subwoofer Application Guide (English/ French)
  • • S2-W8D4 On-line product registration information (English/ French/ Spanish)
  • • S2-W8D4 Warranty information (English/ French)
  • • S2-W8D4 Important Notice! (English/ French)
  • S2-W8D4 Owner's Manual
Ground Shaker
Precision Bass That Hits Hard

Experience perfectly balanced bass with a dual-chamber design that lets each subwoofer perform at its best, delivering tight, punchy lows that hit with precision. Engineered to maximize output without sacrificing space, this compact powerhouse fills your ride with rich, immersive sound while keeping your interior clean and uncluttered. With its forward-firing design, every beat is directed straight into your cabin, creating a bold, high-impact listening experience that transforms every drive.

Clean Bass, Tough Design

Crafted with high-density materials and reinforced for lasting strength, this enclosure is made to handle powerful bass and real-world driving conditions without compromise. Its airtight construction keeps your sound tight, consistent, and distortion-free, while the rugged carpeted finish adds a clean, professional look that stands up to daily wear. Designed for both performance and durability, it delivers reliable, hard-hitting audio wherever the road takes you.

 

Ground Shaker
Ground Shaker
Smart Design Meets Serious Bass

Get your system up and running in no time with secure, easy-to-use terminals that make wiring simple and dependable. Designed to fit seamlessly behind your rear seat, this enclosure delivers strong, immersive bass while preserving valuable cabin space. Its versatile forward-firing layout offers flexible installation options, giving you a clean, custom-style setup that maximizes performance without the hassle.

 

 

Create Great Bass

To create great bass, you need the best in materials and engineering. Alpine's S-Series subwoofers apply technology from their higher end subs to bring you the depth and punch that'll make your tunes come alive.

And to make things even better, these subs are about an inch shallower than their predecessors, making them great candidates for locations where regular high-power subs won't fit.

High Amplitude Multi-roll

The S-W8D4 8" subwoofer can handle up to 300 watts RMS, so you can drive it hard without any worries. The tough Kevlar® treated cone stays rigid under pressure, while its rubber High Amplitude Multi-Roll (HAMR) surround enables maximum excursion for impressive performance.

Its dual 4-ohm voice coils allow for extra wiring flexibility, which helps if you plan on adding another subwoofer down the line. Also, it rocks in both sealed and ported boxes, so you can choose an enclosure that suits your tastes.


SPECIFICATIONS


  • Vehicle Make : Toyota
  • Vehicle Model : Tundra

FEATURES


GS-TOYCR28B Black 8" Dual Sealed Enclosure for 2014-2021, Toyota Tundra Crew-Max 

 

Features:

  • Dual-Chamber Bass Blast: Two individual chambers deliver tight, punchy bass for each subwoofer, giving you balanced and powerful low-end performance.
  • Compact Powerhouse: With 0.72 ft³ per subwoofer, this enclosure packs serious bass without taking over your vehicle’s cabin—perfect for American drivers who value space and sound.
  • Forward-Firing Precision: Designed to fire toward the front, delivering direct, immersive bass that fills your car with crisp, high-impact sound.
  • Built to Last: Constructed with 5/8" high-density MDF and reinforced with premium Titebond glue for strength and durability under heavy use.
  • Sealed for Clear Audio: High-quality Titebond silicone sealing eliminates air leaks, ensuring every beat hits hard and stays consistent.
  • Trunk-Ready Finish: Wrapped in durable carpeted trunk liner, combining a professional look with everyday toughness for road trips and daily commutes.
  • Quick, Reliable Wiring: Equipped with 2 binding post terminals for fast, secure connections to your subwoofers.
  • Optimized Fit for Your Vehicle: Designed to fit behind the rear seat, giving you maximum bass output without compromising cabin space.
  • Custom Installation Friendly: Forward-firing setup allows flexibility, and the removable rear seat ensures an ideal fit for full performance.

 

Specifications:

  • Cutout Diameter: 7 1/8"
  • Air Volume: 1.44 ft³
  • Number of Chambers: 2 Individual Chambers
  • Volume per Subwoofer: 0.72 ft³
  • Mounting Depth: 4 3/4"
  • Height: 16"
  • Length: 52 1/2"
  • Top Depth: 3 1/4"
  • Bottom Depth: 6 3/4"
  • Material: 5/8" High-Density MDF Wood
  • Finish: Durable Trunk Liner Carpet
  • Sealant: High-Quality Titebond Silicone
  • Adhesive: High-Quality Titebond Wood Glue
  • Terminals: 2 Binding Post Terminals
  • Placement: Fits Behind Rear Seat
  • Subwoofer Direction: Forward Firing
  • Required Modifications: Rear Wall Plastic Removal & Rear Seat Removal

 

 

 

(2) S2-W8D4 S Series 8" 1000W Power Peak Handling 4 Ohms, Dual Voice Coil Component Car Subwoofer 

 

Features:

  • Dual Voice Coil (DVC) Subwoofers with Configuration Jumpers: Easily switch between 2-ohm and 8-ohm setups for flexible system configuration.
  • Carbon Fiber / Polypropylene Cone: Lightweight yet durable design ensures responsive and accurate bass reproduction.
  • Polypropylene / Ceramic Dust Cap: Adds rigidity to the cone for reduced distortion and improved clarity.
  • High-Grade Strontium Ferrite Magnets: Delivers powerful motor strength for deep, dynamic low-end performance.
  • Twist-Lock Grille Mount System: Allows for quick installation of optional Alpine grilles for protection and style.
  • High-Amplitude Multi-Roll (H.A.M.R.) Surround: Enables long cone excursion and clean, powerful bass output.
  • Push-Type Speaker Terminals (Up to 8AWG Wire Size): Simplifies wiring and supports heavy-gauge speaker cables for optimal current flow.

 

Specifications:

  • Size: 8-inch
  • Impedance (Ohms): 2, 8
  • Cone Material: Carbon Fiber / Polypropylene
  • Surround Material: Rubber
  • Basket Material: Steel
  • Grille: None included
  • Free-Air: No
  • Dual Voice Coil: Yes
  • Sensitivity: 82.7 dB at 1 watt
  • Frequency Response: 35 – 215 Hz
  • Max RMS Power Handling: 300 watts
  • Peak Power Handling (Watts): 900 watts
  • Top Mount Depth (inches): 3 7/8
  • Bottom Mount Depth (inches): N/A
  • Cutout Diameter or Length (inches): 6 7/8
  • Frame Width: 8.268
  • Frame Length: 8.268
  • Vas (liters): 7.5
  • Fs (Hz): 47.9
  • Qts: 0.64
  • Xmax (millimeters): 10

 

  • UPC:
  • Weight: 69.2
  • 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 repair within 1 year from the original date of purchase with proper return authorization.

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