The JBL's LSR310S powered subwoofer is a complement to JBL's LSR active studio monitor range, taking the low-end weight off your nearfields. A 10" down-firing driver offers tight, concentrated bass, resulting in true 3-way sound. This powered speaker has a configurable crossover with JBL's XLF extended low frequency setting, which gives user plenty of options for getting the low-end contour. The LSR310S features JBL's slip stream port, which ensures tight and focused bass at any level. User can quickly integrate this sub into your studio with a large number of inputs and outputs.