![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)
GT-BASSPRO12 | Subwoofer speaker with built-in 150W RMS amplifier with bass port for a surprising bass experience
![Amazon.com: JBL STADIUM122SSI 12" High Performance Automotive Audio Subwoofer with Selectable Impedance : Electronics Amazon.com: JBL STADIUM122SSI 12" High Performance Automotive Audio Subwoofer with Selectable Impedance : Electronics](https://m.media-amazon.com/images/I/71DjSEdmoBL._AC_UF894,1000_QL80_.jpg)
Amazon.com: JBL STADIUM122SSI 12" High Performance Automotive Audio Subwoofer with Selectable Impedance : Electronics
![JBL GT Bass Pro 12 vs. Rockford Fosgate P300 12 - Battle of Powered Subwoofers - Decibel Results!! - YouTube JBL GT Bass Pro 12 vs. Rockford Fosgate P300 12 - Battle of Powered Subwoofers - Decibel Results!! - YouTube](https://i.ytimg.com/vi/-lUsmGzayIQ/sddefault.jpg)
JBL GT Bass Pro 12 vs. Rockford Fosgate P300 12 - Battle of Powered Subwoofers - Decibel Results!! - YouTube
![JBL GT-12BP 1200W 12" GT Series 4-Ohm Loaded Ported Bandpass Subwoofer Enclosure with Red LED Illumination JBL GT-12BP 1200W 12" GT Series 4-Ohm Loaded Ported Bandpass Subwoofer Enclosure with Red LED Illumination](https://images.sonicelectronix.com/images/2803717/big/gt12bp.jpg)
JBL GT-12BP 1200W 12" GT Series 4-Ohm Loaded Ported Bandpass Subwoofer Enclosure with Red LED Illumination
![Amazon.com: JBL GT-BassPro12 12-Inch (300mm) Car Audio Powered Subwoofer System, black : Electronics Amazon.com: JBL GT-BassPro12 12-Inch (300mm) Car Audio Powered Subwoofer System, black : Electronics](https://m.media-amazon.com/images/I/81Hzke7ZPyS.jpg)
Amazon.com: JBL GT-BassPro12 12-Inch (300mm) Car Audio Powered Subwoofer System, black : Electronics
![Amazon.com: JBL GT-BassPro12 12-Inch (300mm) Car Audio Powered Subwoofer System, black : Electronics Amazon.com: JBL GT-BassPro12 12-Inch (300mm) Car Audio Powered Subwoofer System, black : Electronics](https://images-na.ssl-images-amazon.com/images/I/81Hzke7ZPyS._AC_UL600_SR600,600_.jpg)