The Electro-Voice XCS312 is designed for high-level low frequency extension to 40Hz in cardioid configuration. It uses three DVX3120 forced air-cooled 12” transducers capable of long, linear excursion and high power handling in a two channel configuration. XCS312’s are designed to be used with ratio of four XLD281 or XLD291 full range systems for each XCS312 subwoofer. The XLVC family consists of two full-range line array Elements with dual woofers, two full-range line array elements with single woofers and two subwoofer systems. The dualwoofer line array element includes the XLD281 with 120° horizontal coverage pattern and the XLD291 with 90° horizontal coverage pattern. The single-woofer line array element includes XLE181 with 120° horizontal coverage pattern and XLE191 with 90° horizontal coverage pattern. The XCS312 cardioid subwoofer module has same rigging footprint as XLD281 and XLD291 allowing it to be directly arrayed above, or below XLD281 or XLD291 full range systems. LAPS modelling software quickly provides array configurations and rigging information. XCS312 subwoofers can be used as the base for ground-stack applications, or by using EV’s XGS-4 ground-stack kit for XLVC. XLVC delivers unprecedented performance in applications ranging from live reinforcement to performing arts venues, to houses of worship.