Has anyone heard of using RG-6 for inwall speaker wire instead of speaker wire? I went to a home audio/video instal speacialist and they told me they use RG-6 for all their installs. Curios i went home and hooked up one speaker with 12ga moster and 1 with RG-6. The RG-6 one sounded much better. so far I've ran about 300 feet of RG-6 for speakers and was wondering if it weas a bad idea before I seal off the ceilings.