The d&b Y-SUB is a high-performance flyable cardioid subwoofer designed to complement the Y-Series line array system. Featuring an 18" front-facing driver and a 12" rear-facing driver in a cardioid configuration, the Y-SUB provides powerful bass extension while significantly reducing rearward energy. It can be flown with Y-Series arrays or deployed as a ground-stacked subwoofer for maximum flexibility.