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GT-BASSPRO12 | Subwoofer speaker with built-in 150W RMS amplifier with bass port for a surprising bass experience
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Amazon.com: JBL GT-BassPro12 12-Inch (300mm) Car Audio Powered Subwoofer System, black : Electronics
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JBL GT Bass Pro 12 vs. Rockford Fosgate P300 12 - Battle of Powered Subwoofers - Decibel Results!! - YouTube
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![GT-BASSPRO12 | Subwoofer speaker with built-in 150W RMS amplifier with bass port for a surprising bass experience GT-BASSPRO12 | Subwoofer speaker with built-in 150W RMS amplifier with bass port for a surprising bass experience](https://kh.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw0bfe3578/GT-BassPro_001-1_3000x3000_300dpi_dvHAMaster.png)
GT-BASSPRO12 | Subwoofer speaker with built-in 150W RMS amplifier with bass port for a surprising bass experience
![GT-BASSPRO12 | Subwoofer speaker with built-in 150W RMS amplifier with bass port for a surprising bass experience GT-BASSPRO12 | Subwoofer speaker with built-in 150W RMS amplifier with bass port for a surprising bass experience](https://kh.jbl.com/dw/image/v2/AAUJ_PRD/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwf77822e9/GT-BassPro_003-1_dvHAMaster.png?sw=537&sfrm=png)