Xsub(F) Dual 18in Subwoofer

The Electro-Voice Xsub(F) high-output, dual, 1200-watt, subwoofer
system features EVX 180B woofers in a rectangular cabinet with a
footprint identical to other X-Line systems. As a linear array
technology system, the Xsub(F) can be flown or ground-stacked with the
Xsub non-flying version. Ring Mode ...