Speaker for low frequencies reproduction, with 15” speaker and 500 W RMS power. Its high sensitivity of 102 SPL (1 W, 1 m) allows it to achieve a high sound pressure of more than 128 dB (500 W, 1 m). Suitable for bass reinforcement in any sound installation, in particular, to accompany the usual high-power loudspeakers in conference rooms, hotel lounges, shopping malls, fashion stores... OPTIMUS model ref. SB-500B.