DJ18S is the smallest, lightest and most costeffective solution available. Suitable for the truly bass-insatiable, whose focus is on modern music that features frequencies well below the usual 40-50Hz range, this extremely compact sub weighs only 110 lbs and delivers output down to 27Hz (-3dB). By comparison, most similarly sized subs are going to be -10dB at 30 Hz. That’s an equivalent output ratio of 2:1 at the lowest notes. That means it would take 2 boxes with output that’s -10 at 30Hz to produce the same output as one DJ18S.