The 18? bass reflex subwoofer produces a deep and powerful bass foundation with its 1,200 watts. This all-round subwoofer can be used for a wide variety of applications thanks to its stereo preamp and corresponding outputs. The classic setup can be implemented either as a half or full stack, and a 2.1 system can be created with ease thanks to the two mid/high outputs. The subwoofer takes care of the filtering required for this. This means that mid/high units that do not have their own filtering can even be connected. The required system crossover is already completely integrated in the PR:O 118 Sub D2.