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Austin's TV & Home Theater Store Since 1967


GT-BASSPRO12 Subwoofer speaker with built-in 150W RMS amplifier with bass port for a surprising bass experience


  • 12" (305mm) polypropylene cone
  • Built-in 150-watt amplifier
  • Remote level control
  • Progressive spider

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12" (305mm) polypropylene cone The JBL GT-BassPro12 powered subwoofer features a polypropylene cone and a rubber surround to provide superior reliability and cone resonance damping. All of that technology translates into tight, powerful, natural-sounding bass that may outlast your car.

Built-in 150-watt amplifier The JBL GT-BassPro12 powered subwoofer system s built-in amplifier is designed to complement its subwoofer for maximum performance. You won t have to worry about finding the right amp. We ve included it for you.

Remote level control Let the other guy have to stop and pop the trunk. The JBL GT-BassPro12 powered subwoofer s remote level control lets you adjust the bass from the driver s seat, so you can enjoy your ride without interruption.

Progressive spider The JBL GT-BassPro12 powered subwoofer s progressive spider exerts control over the cone s motion at high excursion for superior reliability even at the highest listening levels.

Vented polepiece The JBL GT-Basspro12 powered subwoofer s vented polepiece helps cool the subwoofer s motor for improved power handling and lower power compression. That technology makes the JBL GT-BassPro12 one cool subwoofer.

Slipstream port A proprietary Slipstream port is a special feature of the JBL GT-BassPro12 powered subwoofer. The port s dual flares form an adverse pressure gradient that eliminates port noise at high output noise that signals that the port is no longer able to pass enough air to operate effectively. The Slipstream port provides clean, distortion-free performance even at the highest output levels.

Oversize, dual-stacked magnets The JBL GT-BassPro12 powered subwoofer uses oversized, stacked magnets to increase magnetic flux for higher output and cone motion control, and room for high voice-coil excursion.

Speaker-level and line-level inputs The JBL GT-BassPro12 powered subwoofer has flexible connections that allow you to connect it to any car audio system.

Automatic on/off function The JBL GT-BassPro12 powered subwoofer automatically turns on when it senses a signal on the speaker level input, eliminating the need for a remote turn-on wire when the system uses the speaker level inputs. What s more, the GT-BassPro12 will automatically turn itself off a few minutes after the signal stops.

Oversized speaker-protection bars Your JBL GT-BassPro12 powered subwoofer looks every bit as powerful as it sounds. Its speaker-protection bars help keep the woofer cone safe and project a sleek, muscular look.


  • 12" (305mm) polypropylene cone
  • Built-in 150-watt amplifier
  • Remote level control
  • Progressive spider
  • Vented polepiece
  • Slipstream port
  • Oversize, dual-stacked magnets
  • Speaker-level and line-level inputs
  • Automatic on/off function
  • Oversized speaker-protection bars
General Specifications
Size 12"
Type Enclosed
Audio Specifications
Frequency Response 35Hz-120Hz
Power Handling (RMS) 150W
Sensitivity 50mV - 4V (line-level input); 0.4V - 16V (speaker-level input)
Power Handling (Peak) 450W
Peak Power 450W
Amplifier Power 150 watts RMS; 450 watts max power
Max Current Draw 13.5A
Idle Current Draw less than 500mA
Crossover Frequency 70Hz - 120Hz
Weight (lb) 38.6
Depth (in) 12
Depth (mm) 305
Weight (kg) 17.5
Width (in) 22-7/16
Height (in) 14-1/2
Height (mm) 360
Woofer Specifications
Crossover Slope 12dB

Spec Sheet (EN)

Owner's Manual (EN)

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Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Electronics can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new electronics should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.