Telex Electro-Voice EVF-1121S 12" Front-loaded Bass Woofer, Single, White

The Electro-Voice EVF-1121S 12" Front-loaded Bass White Woofer is available to augment the low-frequency output ability of the EVF full-range systems. In their passive mode, it have integral low-pass filters that roll off frequencies above 100 Hz at the rate of 12 dB per octave. This means that they can be used without an external digital signal processor (DSP) for crossover from the low-frequency to the full-range systems. As many as two full-range systems can be paralleled with an EVF low-frequency system on a single power-amplifier channel capable of driving a 2.1Ohms minimum impedance.