XI-2181 Subwoofer

Xi-2181A
X-Array™ Xi-Series™ Speaker System
The Electro-Voice® Xi-2181A is a dual,18-inch, low-frequency system
featuring Manifold Technology®. Two woofers in the basic Xi shell
optimize performance for low-frequency enhancement of contemporary
music (37 Hz three-dB-down with EQ). The Xi-2181A produ...