Two JBL 12 inch GT4s subwoofers

This is my second review on these subs after having them over a year. Two JBL 12 inch GT-4s with a 600 watt amp, bass at -4, volume at about half, and the song is A Milli ( instrumental ) by Lil Wayne. Very nice subs, they hit very clean and 600 watts is just right to still be able to hear the music. Be sure to check out my other videos and subscribe.