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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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JBL GT Bass Pro 12 vs. Rockford Fosgate P300 12 - Battle of Powered Subwoofers - Decibel Results!! - YouTube
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Amazon.com: Two Pieces of GT-X1200 12" J.B.L Subwoofer 1200W 4-Ohm Bass Speaker Car Audio : Electronics
![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://www.jbl.com.tw/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw5344e364/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
![Amazon.com: Two Pieces of GT-X1200 12" J.B.L Subwoofer 1200W 4-Ohm Bass Speaker Car Audio : Electronics Amazon.com: Two Pieces of GT-X1200 12" J.B.L Subwoofer 1200W 4-Ohm Bass Speaker Car Audio : Electronics](https://images-na.ssl-images-amazon.com/images/I/6142-bIQ8gL._AC_UL160_SR160,160_.jpg)