The Comprehensive CVG-CVA2LD and CVG-SVA2LD are high performance video and stereo audio line drivers capable of sending a composite (CVG-CVA2LD) or an S-video (CVG-SVA2LD) signal with stereo audio up to 500 feet when used with premium cable. Used to distribute composite video or S-video and stereo audio over long distances, the CVG-CVA2LD and CVG-SVA2LD are the perfect choice when sending composite or S-video and audio signals to monitors that may be different distances from the source. Both units provide separate cable equalization of +/-5dB for each of the 2 video outputs, and compensate for signal level and high frequency losses that occur over long cable runs. Stereo audio may be input on either two RCA jacks or one stereo 3.5mm mini jack, which then outputs two sets (L&R) of balanced or unbalanced stereo audio. The CVG-CVA2LD and CVG-SVA2LD run on a standard 9 volt AC/DC source, so they are therefore perfectly suitable for fieldwork. Both units are are UL and CSA approved.