The OMNITRONIC CSS-6 is a passive 2-way flush-mount ceiling speaker for 100 V public address systems. It features a 16.5 cm (6.5") woofer and a 1.5 cm (0.5") tweeter in a durable plastic cabinet with a metal grille. The speaker provides 5 W RMS power handling, switchable 1.25 W, 2.5 W and 5 W RMS tapping, a 100–15,000 Hz frequency range, and 92 dB sensitivity. It is intended for fixed installations in restaurants, hotels, bars, sports centres and similar venues.