Sales and pre-sale assistance: 1-800-336-4525
Technical help: 1-800-336-4525
Parts and accessories: 1-800-336-4525
The JBL® GTO504 is a 280-watt, four-channel, full-range amplifier with bass boost, a variable 12dB-per-octave electronic crossover, an aluminum heatsink and a wide 10Hz to 100kHz frequency response. Its full-range preamp outputs allow multiple hookups without high-loss Y-adapters or signal splitters. Want more power? Add JBL® GTO Series loudspeakers.
Warranty: 1 Year Warranty
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
|Frequency Response||(-3dB) 10Hz–100kHz|
|THD + N||0.02%|
|Total Peak Power Output||280W|
|USA Warranty Length||1 Year Warranty|