Review summary of JBL GT Series GT120 12 in Subwoofer
The JBL GT120 Car Subwoofer features: polypropylene cone with butyl rubber surround, dual 40-ounce magnets, power range 55-250 watts RMS, peak power 1,000 watts, frequency range 23-450 Hz, sensitivity 93 dB SPL, impedance 4 ohms, top mount depth 6", seale