Sales and pre-sale assistance: 1-800-336-4525
Technical help: 1-800-336-4525
Parts and accessories: 1-800-336-4525
Hit the road with the big, rich, detailed sound that makes JBL® products famous. The GTO638 deploys the serious bass of a Plus One® woofer cone and an edge-driven My-Ti™ super tweeter that produces extended high frequencies, just as the best home audio speakers do. In the GTO638, you’ll find attention to detail rarely given to car audio. And it’s a game-changer.
Warranty: 1 Year Warranty
Replaced by: GTO637
Your model might be eligible for direct factory exchange under our warranty program. If so, and if you purchased your product online or from an authorized local retailer, you may use this form to request an exchange. Purchases made from an unauthorized dealer will not be eligible for exchange.
Products under warranty may qualify for an exchange with a valid receipt.
Products out of warranty need to be serviced by a JBL-approved service center. Please call 1-800-336-4525 to find authorized service centers near you.FIND LOCATIONS
|Nominal Impedance||2 ohms|
|Power Handling (RMS)||60W|
|Frequency Response||50Hz – 21kHz|
|Power Handling (Peak)||180W|
|External Diameter (in)||6-1/4|
|External Diameter (mm)||159|
|Mounting Cutout Diameter (in)||5-1/4|
|Mounting Cutout Diameter (mm)||133|
|Mounting Depth (in)||2-1/16|
|Mounting Depth (mm)||52|
|USA Warranty Length||1 Year Warranty|