Economic 1x4 HDTV audio-video distribution amplifier. The 40-937B 1X4 component video amplifier with stereo audio allows you to distribute low-noise, low-distortion HDTV component video and analog audio signals to four destinations. Amplified, broadband circuitry eliminates signal loss and assures true one-to-one ratio, low noise, low distortion, unity gain audio and video distribution and are capable of transmitting signals for cable runs of up to 150 ft. One additional amplifiers may also be cascaded for system expansion. Includes 12Vdc, 500ma power supply. Tabs with 4x4 mounting holes. Front panel L.E.D. indicator. Please note !This distribution amplifier will not work with passive component balun systems.