The B24i is a cardioid subwoofer featuring dual 12" LF drivers positioned symmetrically at front and rear. Specifically designed as a bass extension for ELLA6 line arrays, it delivers directional low-frequency performance from 37-170Hz. With 1500W program / 3000W peak power handling per driver and 129dB max SPL, it's engineered for both flown installations (with specialized mounting system) and ground stacking. The space-saving 350×500×900mm enclosure weighs 36.5kg and offers selectable radiation patterns (omni/cardio/hypercardio/endfire) through dedicated presets, making it ideal for installations with limited stage depth where boundary reinforcement can enhance directional performance.