OMNITRONIC CST-608 is a passive, 2-way flush-mount coaxial ceiling speaker for indoor public address systems, speech and background music. It features one 6.5-inch woofer and one 1-inch swivel tweeter with passive crossover, PTC overload protection and a selectable -3 dB, 0 dB or +3 dB level switch. The speaker has an 8-ohm impedance, 40 W RMS power handling, 45–21,000 Hz frequency response, 105° dispersion and a white ABS housing with metal grille.