New Owners! South Central AV now owns Tropical Music Service, Inc., Formerly owned by H. Glenn Tanner, has been serving the leading business firms on Florida's West Coast since 1948, presently having over 3,000 subscribers enjoying the many benefits of MUZAK and other related sound products. New Address! 1414 Tech Blvd. Tampa FL 33619 The continued growth and acceptance of our services and products over the years provide living testimony to our growth, benefiting both labor and management.