dual subwoofer speaker 18+12 inch 1400w passive neodymium sub woofer

VG-1812S, actively driven high performance cardioid subwoofers powered by a single amplifier channel. It is intended for ground stacked applications only, and share the same acoustical and visual design as the V-1812S, it houses two long excursion neodymium drivers, an 18" driver in a bass-reflex design facing to the front and a 12" driver in a two chamber bandpass design radiating to the rear. The cardioid dispersion pattern resulting from this arrangement
avoids unwanted energy behind the system that reduces the excitation of the reverberant field at low frequencies and provides the greatest accuracy of low frequency reproduction.

Technical data