@Trebdp83 , is that "mono movie" function colored somehow for optimal movie sound rather than music? There is no doubt that mono music in all channels sounds better. Playing the Beatle's White Album in mono from the 2014 Mono Box Set and the swirling piano on "Dear Prudence" sounds amazing on all channels but it doesn't cut so much on just the center.
edit: putting my ear close to the center, flipping back and forth, it does sound similar, if not the same in that speaker. Maybe it just sounds more clear since you get 7 speakers going, so more volume. That's probably it.