The ornamental design for an audio-visual center, substantially as shown and described.
FIG. 1 is a front perspective view of an audio-visual center, showing my
new design, with the storage racks emptied of film canisters and tape
cassettes;
FIG. 2 is a top plan view thereof;
FIG. 3 is a right side perspective view thereof; the left side being a
mirror image thereof;
FIG. 4 is a rear perspective view thereof; and
FIG. 5 is a front perspective view thereof, with the swivel chair in side
elevational view and the storage racks with film canisters and tape
cassettes.