IMPORTANT: Tested working with proper functionality and steady power delivery, pre-owned with normal cosmetic wear from prior use, subwoofer unit only, satellite speakers, stands, and extra cables are not included, only items shown in the photos are included, no extras unless pictured, please review all photos before buying. The Monsoon Multimedia MM-700 is a self amplified powered subwoofer that functions as the central hub and power source for the MM-700 desktop audio system setup. Built in amplification with rear connection ports drives satellite speakers and delivers deep, rich, room filling bass in a compact footprint that fits neatly under a desk or beside a PC tower. Ideal for gaming, music, movies, multimedia, and computer audio setups, or as a replacement base unit to restore your existing Monsoon system at home. A great find for audiophiles and vintage planar speaker fans alike. Keywords: Monsoon MM-700, powered subwoofer, computer speakers, desktop audio, built-in.