I think you need to look to music people know so the difference is obvious. Things like Nora Jones, Ray Charles, Lyle Lovett, Celine Dion(blech!), Louis Armstrong, Ella, Steely Dan, etc. Check out the "Best tracks to "show off" your system" thread for more ideas.
Unfortunately, few people go to the symphony to know what live orchestral music sounds like.
Unfortunately, few people go to the symphony to know what live orchestral music sounds like.