FIG. 1 is a perspective view of a first embodiment of shelf unit for audio/video components showing my new design;

FIG. 2 is a front orthographic view thereof;

FIG. 3 is a top orthographic view thereof;

FIG. 4 is a right side orthographic view thereof, the left side orthographic view having a mirror image;

FIG. 5 is a perspective view of a second embodiment of my design;

FIG. 6 is a front orthographic view thereof;

FIG. 7 is a top orthographic view thereof; and,

FIG. 8 is a right side orthographic view thereof, the left side orthographic view being a mirror image.

The broken lines shown in FIGS. 1-8 are included for the purpose of illustrating environmental elements only and form no part of the claimed design. The rear and bottom views are omitted and form no part of the claimed design.