The jbl gt-basspro12 powered subwoofer pumps out rich, car-rocking bass through a style so cool you won’t want to hide it in your trunk. The trademarked slipstream port style delivers deep bottom end while decreasing turbulence. Turbulence, or port sound at high volume, isn’t simply annoying; it’s a signal that the port is no longer working and you’re getting less bass than you spent for. The slipstream design is carefully optimised for the combination of amp, woofer and enclosure, and no other business has it. And with the consisted of remote control for drive-time adjustments, the only time you’ll require to stop is for gas.