FIG. 1 is a perspective view of a speaker showing our design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side, elevational view thereof;
FIG. 5 is a right side, elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The broken lines showing on FIGS. 1-2 and 4-7 are for the purpose of illustrating environmental structures and form no part of the claimed design.