The ornamental design for a loudspeakerwallsupport, as shown and described.
FIG. 1 is a perspective view of a loudspeaker wall support showing my new
design;
FIG. 2 is a typical end view thereof when the ends are aligned to lie in
parallel planes, the opposite end view being identical thereto; and,
FIG. 3 is a side view thereof when the ends are aligned to lie in parallel
planes, the opposite side view, the top view, and the bottom view being
identical thereto.