The OMNITRONIC CSP-6 is a passive 100 V flush-mount ceiling speaker for speech and background music in indoor public address systems. It features a 6-inch full-range loudspeaker with 6 W RMS rated power, switchable 3 W and 6 W power tapping, a frequency range of 100–17,000 Hz, 91 dB sensitivity, and 101 dB maximum SPL. The speaker has a white HIPS plastic enclosure and grille, mounts using spring clamps, and measures 18.8 cm in diameter and 7 cm deep.