SUB WOOFER: BaseTwo25 Powered low-frequency extension system with 2 x subwoofer towers and 2 x 900W amplifier. What they said ….. at the time

We are told:

BaseTwo25 is a state-of-the-art monitoring solution converting any Amphion two-way studio monitor into a full-range, time and phase coherent, three-way system, extending all the way down to 20Hz.