Pyle Ceiling and Wall Mount Speaker-8” 2-Way 70V Audio Stereo Sound Subwoofer SoundDAMAGED BOX 70V TRANSFORMER: Pyle ceiling speakers feature 70 volt transformer, while an 8 ohm bypass setting allows use with regular home audio receivers and amps. The product is made to produce powerful, rich sound or quiet background music 55Hz 20kHz FREQUENCY RESPONSE: Pyle 8 speaker system has a directable 1 2 high compliance dome tweeter and 55Hz to 20kHz frequency response. This flush mount speaker also has 8 ohm impedance rating