Hi Chaps, I've just installed my Kef Ref' THX package minus the Kef sub. I can't help but think i'd be better off with a dedicated THX approved sub, there is nothing wrong with the Rel just a nagging doubt in the back of my mind, the Rel does an excellent job with both music & movies, however i hardly play any music in my cinema so movies are the main concern. Has anyone had both subs how do they compare. Cheers. Tim.