Free Express Shipping! RCF SUB 905-AS MK3 Professional Powered 15" Subwoofer Workhorse for Music Professionals, 2200W Class-D Amplifier, 15" Woofer, 3" Voice Coil, Stereo Crossover, Switchable Frequencies, 40 to 120 Hz Frequency Range, 133 dB Max SPL,...