The OMNITRONIC BX-1250 is a passive, vented 12-inch subwoofer designed to provide low-frequency support for top speakers. It contains one woofer with 300 W RMS and 600 W program power handling, a frequency range of 20–400 Hz, and an 8-ohm nominal impedance. The enclosure includes bass-reflex tubes, a switchable passive crossover, a 35 mm attachment system, steel protective corners, a black metal grille, and a scratch-resistant black felt covering.