The VB 18w / VB 18(8) / VB18 is a compact design subwoofer which features a powerful and precise bass sound reproduction at high sound pressure levels. The optimized tunnel geometry reduces the air flow noise to a minimum. The VB 18w has an integrated frequency crossover. It ensures that the bass frequencies are directed to the loudspeaker and the remaining sound frequencies are sent to the Mid/High-Out. Main field of application is the assembly of passively channeled PA systems. The VB 18(8) resp. VB 18 directs the input signal directly to the loudspeaker. This subwoofer is ideal for building or extending actively channelled PA systems. It is available in 4 ohm or 8 ohm.