VEX-8 4/8-ohm (300-watts) - EACHThe Sundown Audio VEX series is our top of the line high efficiency mid range series. The VEX 8 was designed to handle an enormous 300 watts RMS thanks to its generous 2. 5 coil (with a full 20mm winding length) and highly efficient airflow system consisting of twelve gaps vents and a chamfered, large diameter pole vent. The long coil also affords the VEX 8 a full 9mm of linear x max one way so it can play lower than many other high efficiency drivers