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About this product

With a 10Hz to 300Hz frequency response and a 120dBa signal-to-noise ratio, the GT5-A3011 300-watt subwoofer amplifier cleanly delivers deep bass – with enough wattage (300W RMS, 600W peak) to make you feel it. You can set its input level and crossover, and its outputs enable multiple hookups without Y-adapters or signal splitters. Have fun.

Warranty: 1 Year Warranty
Model: GT5-A3011
Replaced by: GT5-A3001

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Owner's Manual


Your GT5-A3011 may currently be in-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.

Request an Exchange

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.