Finished in simulated walnut with a black grille cloth, the Bogen Communications WBS8T725V is an 8" 4W loudspeaker fully assembled in a wall baffle for paging, talkback, background music, and security applications in schools, warehouses, offices, and more. When fed from a 25V or 70V amplifier (available separately), the 8" cone-type loudspeaker delivers a power output of up to 4W, a maximum SPL of 95 dB, and a frequency response of 50 Hz to 12 kHz. The onboard transformer features six power taps to accommodate a variety of configurations.