The Slipstream port is mathematically engineered to keep airflow with the port turbulence-free, which avoiding the common shortcoming of traditional ported boxes. Coupled with the built-in 150Wrms amplifier the BassPro 12 really delivers.
Also the Bass Volume Remote control is included for easy adjustment, no more stopping to pop the trunk. Car Audio 12-inch Loaded Subwoofer Ported Box with Built In Amplifier.
Woofer surround type: Butyl Rubber. Oversized, stacked magnets to increase magnetic flux. GT Series Mono block Car Amplifier Flush Mounted into back panel of enclosure.Max power output: 450 watts x 1 chan. Wired 16-1/2' remote bass level control included.
LED power (green) and protect (red) indicators. Variable Bass Boost (0 to +12 dB bass boost at 45 Hz). Screw terminals for power, ground, and remote turn-on. Variable low-pass filter (40-200 Hz, 24 dB/octave).Subsonic filter (24 dB at 15 Hz). 12 Single Ported Subwoofer Enclosure. Dimensions: 12" D x 22-1/2" W x 14-5/8 H. Also if you are in AK, HI, PR, GU, SAIPAN OR U. The item "JBL GT-BassPRO12 450 Watts Amplified 12 Ported Subwoofer Sub Box Built In Amp" is in sale since Thursday, April 23, 2020. This item is in the category "Consumer Electronics\Vehicle Electronics & GPS\Car Audio\Car Subwoofers". The seller is "autosounds_warehouse" and is located in Rosemead, California. This item can be shipped worldwide.