The mission was to equip the CL-Series with meaningful features for those managing smaller venues and events: Broadband directivity control with low frequency cardioid behaviour, using an innovative new passive design. A dedicated flyable subwoofer available in both installation and mobile versions. A new patented passive cardioid design features a front 15” and a rear 10” driver configuration. New bass reflex and bandpass ports significantly reduce noise at very high sound pressure levels. The CL-Series can be paired with a range of d&b amplifiers, including the 40D, D40, D80, and D90.