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Musway  Single 8" Sealed Subwoofer Bass Package for 2007-2018 Chevy Silverado Extended Cab New

GS-JCHV18B Black 8" Single Sealed Sub Box, Fits 2007-2018 Chevy Silverado Extended Cab + MWS844 8" 250W RMS 4-Ohms Flat-Component Car Subwoofer

Item #99453

Condition:   Brand New

Product Highlights

  • GS-JCHV18B
  • Black 8" Single Sealed Sub Box
  • Fits 2007-2018 Chevy Silverado Extended Cab
  • MWS844 8"
  • 250W RMS
  • 4-Ohms
  • Flat-Component Car Subwoofer

  Free 3-Years Warranty Included!
60 DAYS Returns Accepted.
FREE Lifetime Tech Support.
FREE Shipping (No Minimum).
60 DAYS Price change protection.

$652.95

Reg. Price $779.95  Save $127.00
Add Extended Warranty
  Free 3-Years Warranty Included!
60 DAYS Returns Accepted.
FREE Lifetime Tech Support.
FREE Shipping (No Minimum).
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-JCHV18B Black 8" Single Sealed Sub Box, Fits 2007-2018 Chevy Silverado Extended Cab + Musway MWS844 8" 250W RMS 4-Ohms Flat-Component Car Subwoofer


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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-JCHV18B 8" Single Sealed Sub Box
  • • GS-JCHV18B Owner's Manual
  • • MWS844 8" Car Subwoofer In Flat Design
  • MWS844 Owner's Manual
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Big Bass Without Giving Up Your Space

The Ground Shaker GS-JCHV18B is the perfect solution for truck owners who want serious bass without sacrificing valuable cabin space. Designed to fit neatly under the rear seat behind the driver’s side, this enclosure keeps your setup clean, hidden, and practical while still delivering the low-end punch your system deserves. Its down-firing design not only protects the subwoofer from daily wear and tear, but also helps produce deeper, tighter bass that fills the cabin with smooth low-frequency response.

Built Tough for Real Car Audio Performance

This enclosure is built from durable 5/8" high-quality MDF wood, giving it the strength and rigidity needed for cleaner, more accurate bass performance. With 0.68 ft³ of optimized air space, it’s tuned to help your subwoofer perform efficiently without sounding muddy or weak. The enclosure supports subs with a 7 1/8" cutout and up to 6" mounting depth, making it compatible with a wide range of popular subwoofers. Ground Shaker also uses premium Titebond wood glue and silicone sealing to keep the box air-tight and solid, even during heavy bass sessions.

 

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Compact Power – Perfect Fit Sub Box

Wrapped in a durable trunk liner carpet, the GS-JCHV18B looks right at home inside your truck while resisting scratches and wear from everyday use. The compact dimensions make installation simple, and the sturdy 22 lb build helps reduce unwanted vibrations for cleaner sound. A reliable binding post terminal provides secure wiring connections, making your install easier and more dependable. If you want strong bass in a stealthy, truck-friendly setup, this enclosure gets the job done without taking over your interior.

In Flat Design

MUSWAY is known for its small and at the same time very powerful products. The two new flat subwoofers also join this tradition. Due to their design, they also suitable for installation locations that have little space in depth when shallow installation dimensions are a must. With an installation depth of 78 mm for the 8" (20 cm) and a sensationally low 87 mm for the 10" (25 cm) subwoofer, they are the ideal problem solvers for special installations.

High Quality Materials

A particularly flat subwoofer should of course sound good and must be robust. That is why MUSWAY uses special and very hard cones made of the composite materials glass fiber and carbon . No savings were made on the drives either: the woofers have 40 or 45 ounce magnets and are driven by 50 mm dual voice coils, which are also very long wound. With Xmax values ??of +/- 15 mm, both woofers ensure a decent stroke. With 250 or 300 watts RMS, they are also very resilient, so that no compromises have to be made.

Detailed Wiring Product-Diagram
Musway MWS8440 Diagram
Musway MWS844 in 2006 Mercedes SLK350 Upgrade

 

 

 

 

 

 


SPECIFICATIONS


  • Vehicle Make : Chevrolet
  • Vehicle Model : Silverado

FEATURES


GS-JCHV18B Black 8" Single Sealed Sub Box, Fits 2007-2018 Chevy Silverado Extended Cab

 

Features:

  • Vehicle-Specific Under Seat Design: Engineered to fit under the rear seat behind the driver’s side for a clean, space-saving bass solution.
  • Down-Firing Enclosure Configuration: Down-firing design helps protect the subwoofer while enhancing low-frequency performance and bass response.
  • Optimized Internal Air Volume: Features 0.68 ft³ of internal air space for balanced and efficient subwoofer performance.
  • Subwoofer Compatibility: Supports subwoofers with a 7 1/8" cutout diameter and up to 6" mounting depth.
  • Compact Truck-Friendly Dimensions: Designed with a low-profile structure measuring 9 1/2" front height, 7 1/2" rear height, 29 1/2" length, and 13 1/2" depth.
  • Heavy-Duty MDF Construction: Built from durable 5/8" high-quality MDF wood for enhanced enclosure rigidity and improved sound performance.
  • Premium Trunk Liner Finish: Wrapped in a durable carpeted trunk liner material for a clean appearance and added resistance to wear.
  • Air-Tight Sealed Design: Sealed with high-quality Titebond silicone to reduce air leaks and maintain accurate bass response.
  • Strong Wood Bonding: Constructed using premium Titebond wood glue for superior durability and long-lasting structural integrity.
  • Reliable Speaker Connection: Equipped with a binding post terminal for secure and dependable speaker wire connections.
  • Solid & Durable Build: Weighs 22 lbs., providing a sturdy enclosure platform that minimizes unwanted vibration.
  • Installation Note: Not compatible with 2007 Classic models.

 

Specifications:

  • Cutout Diameter: 7 1/8"
  • Air Volume: 0.68 ft³
  • Weight: 22 lbs.
  • Mounting Depth: 6"
  • Front Height: 9 1/2"
  • Rear Height: 7 1/2"
  • Length: 29 1/2"
  • Depth: 13 1/2"
  • Constructed with 5/8" high-quality MDF wood
  • Carpeted with durable trunk liner finish
  • Sealed with high-quality Titebond silicone
  • Glued with high-quality Titebond wood glue
  • 1 Binding Post Terminal
  • Fits under rear seat behind the driver’s side
  • Down-firing design
  • Will not fit 2007 Classic

 

MWS844 8" 250W RMS 4-Ohms Flat-Component Car Subwoofer

 

 Product Overview

  • Flat design: The Musway MWS844 has a flat design, which allows it to fit into tight spaces that are not suitable for traditional round subwoofers.
  • Size: It is an 8-inch subwoofer, which strikes a balance between compact size and powerful performance.
  • Power handling: The subwoofer can handle up to 500 watts of peak power and 250 watts of RMS power.
  • Impedance: The subwoofer has a 4+4 ohm impedance, which makes it compatible with a wide range of car audio systems.
  • Build quality: The Musway MWS844 is built with high-quality materials, such as a reinforced steel frame and a durable rubber surround, which enhances its durability and longevity.
  • Easy installation: The subwoofer comes with an installation manual and mounting hardware, making it easy to install in most vehicles.
  • Sound quality: The Musway MWS844 delivers powerful and clear bass that enhances the overall sound quality of any car audio system.

 

Specifications:

  • 250 Watts RMS, 500 Watts Max.
  • Impedance 4 + 4 Ohms
  • 50 mm (2") Voice Coil
  • Sturdy Steel Basket
  • 1,13 kg (40 oz.) Magnet
  • Fs 39,7 Hz • Qts 0,575 • VAS 10,9 L
  • SPL 83 dB, Xmax +/- 15 mm
  • Installation Depth 78 mm
  • Installation Diameter 182 mm
  • UPC:
  • Weight: 31
  • Authorized Internet Dealer
Warranty: 3 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 3 Year(s) from the original date of purchase with proper return authorization.

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