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JBL GTO428 + Sound Dampening

4" 2-way Grand Touring Series Car Speakers with Two 10" x 10" Pieces of Sound Dampening Material

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4" 2-way Grand Touring Series Car Speakers • 105 Watts Max • 35 Watts RMS • My-Ti Tweeters • 2 Ohm • Plus One Cone • Included Sound Dampening

Learn more about the gto428_csm

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This item has been discontinued


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Product Highlights


4" 2-way Grand Touring Series Car Speakers • 105 Watts Max • 35 Watts RMS • My-Ti Tweeters • 2 Ohm • Plus One Cone • Included Sound Dampening

Description


JBL brand icon

Authorized dealer

Speaker Features:
  • 4" Grand Touring Series 2-way Car Speakers
  • Power Handling:
    • Peak: 210 watts per pair / 105 watts each
    • RMS: 70 watts per pair / 35 watts each
  • Plus One cone material
  • Mylar/titanium composite dome tweeters
  • Frequency response: 90-20,000 Hz
  • 2 ohm impedance
  • Sensitivity: 90 dB
  • Cutout dimensions: 3-1/2"
  • Top-mount depth: 2"
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty
Sound Dampening Features:
  • Two 10" x 10" Pieces of Dead Shield Sound Dampening Material
  • Eliminates Road Noise
  • Quiets Vibrations
  • Stops Rattles
  • Increases SPL
  • Reduces Heat
  • Simple To Install
  • Easy To Form Aluminum
  • Four step peel and stick installation
  • Increases sound quality and output
  • Up to 30% thicker than the leading competitors
  • Dimensions (each piece): 10"L x 10"W

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Specifications & Details


Speaker Specifications
Speaker Size
4"
Design
2-way Coaxial
Tweeter Design
Dome
Tweeter Composition
Mylar/Titanium Hybrid
Woofer Composition
Plus One
Peak Power Handling
105 watts
RMS Power Handling
35 watts
Sensitivity
90 dB
Frequency Response
90 - 20,000 Hz
Impedance (Per Voice Coil)
2 ohm
Shallow Mount Installation
Yes
Top-Mount Depth (Mounting Depth)
2"
Cutout Dimensions
3-1/2" x 3-1/2" 
General specifications
Speaker Grilles
Yes
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

JBL

Model Number:

GTO428_CSM

Weight:

4.48lbs

Internal SKU:

gto428_csm

Internal Product ID:

37660

Product and How-to Videos


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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.