Very compact subwoofer with 12? woofer, 2.5? voice coil and 50 Hz tuning frequency. Ideal low-end support with powerful bass and high sound pressure as a system subwoofer or surround LFE for installations with compact speakers like the FO?5. Easy to integrate in environments with limited space. The cable feed-through on the rear, with cut-outs to the left, right or bottom, allows cables to be routed close to the wall, meaning the subwoofer can be placed against the wall without gaps. A secondary grille protects the bass reflex port from accidental or deliberate insertion of foreign objects. A ball-impact resistance certificate in line with DIN?18032-3 is provided for installations in sports facilities.