The PV 118 Sub is a compact, vented subwoofer system using an 18" heavy-duty woofer with a 3" voice coil and a 65-oz. magnet. The black, perforated steel grille and steel corners provide protection and a professional appearance, and the sturdy steel handles allow ease of transport. A top polemount for 1-3/8" stand poles is incorporated and can be connected in parallel for daisy-chaining or to send a full-range signal to a P.A. cabinet. The impressive 400W program power rating allows plenty of gut-pounding bass. The internal low-pass crossover network, along with the vented enclosure, provides great bass response that will add the thump you desire.