15″ Platform 4 Subwoofer

I have 1, 15″ plat 4 HP in a 4cube sealed box strapped to 2 star power 1500’s at a half ohm. After box rise probably closer to an ohm. Simple trunk build but it is simply amazing. Beast a subwoofer, I have a second with a future build in mind. The plat 5’s must be devastating on a vechile after seeing what my plat 4 can do.