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Imagine car audio so full of big boom, soundstage and detail, you’ll want to flick your rear view mirror just to see what your passengers in the back think. The JBL® GTO428 includes JBL® engineering triumphs like a Plus One® woofer cone, a My-Ti™ tweeter and a Unipoint™ rotating tweeter mount. Have a superior ride, just like that.

What's In The Box

  • (2) GTO428 4” two-way loudspeakers
  • (1) Owner's Manual

Product Specs, Manuals & Compatibility

Compatible with TVs, Laptops, and Mobile devices
Manuals & Downloads
General Specifications
Size
4"
Series
Grand Touring
Type
Two-Way
Audio Specifications
Nominal Impedance
2 ohms
Sensitivity
(2.83V@1m) 90dB
Frequency Response
65Hz–21kHz
Power Handling (Peak)
105W
Power Handling (RMS)
35W
Speaker Specifications
Crossover Frequencies
Onboard
Controls/Adjustments
None
High-Frequency Transducer
25mm (1") balanced-dome My-Ti™ dome
Low-Frequency Transducer
PlusOne® HCL™ honeycomb-laminate cone
Dimensions
External Diameter (in)
3-15/16
External Diameter (mm)
100
Mounting Cutout Diameter (in)
3-1/2
Mounting Cutout Diameter (mm)
89
Mounting Depth (in)
2
Mounting Depth (mm)
51
Warranty
USA Warranty Length
1 Year Warranty
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GTO428 - 105-watt, two-way coaxial 4
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Item #: GTO428

GTO428

The drop-in speaker upgrade your dash or doors are waiting for.
$99.95 per pair
Availability: In-stock and ready to ship.
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