GTO428
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 Unipivot™ rotating tweeter mount. Have a superior ride, just like that.
Introduction Year
2008
Made in
China
Predecessor Product
GRAND TOURING GTO 427
Successor Product
GTO429
Product Specifications
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 |
Dimension Specifications
| Mounting Depth (mm) | 51 |
|---|---|
| External Diameter (in) | 3-15/16 |
| Mounting Depth (in) | 2 |
| Mounting Cutout Diameter (in) | 3-1/2 |
| Mounting Cutout Diameter (mm) | 89 |
| External Diameter (mm) | 100 |
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 |
Documents & Downloads
Spec Sheets
Manuals
Gallery
What’s in the Box
- (2) GTO428 4” two-way loudspeakers
- (1) Owner's Manual
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