The OMNITRONIC WPS-6S is a passive, two-way bass-reflex wall speaker for 100 V public address systems. It uses a 6.5-inch polypropylene woofer and a 1.25-inch polypropylene tweeter with waveguide. The trapezoidal ABS cabinet has a metal safety guard and pivotable mounting bracket. Rated power is 40 W RMS with selectable 5, 10, 20 and 40 W taps. Frequency response is 85 to 20,000 Hz, with 105 dB maximum SPL.