The ornamental design for a speaker for hometheater, as shown and described.
FIG. 1 is a front, left side, perspective view of a speaker for home theater showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof; and,
FIG. 8 is a reference view thereof, showing the speaker in an environment of use equipped on a wall.
The broken lines in FIGS. 3 and 8 are included for the purpose of illustrating portions of the speaker and environment of the speaker and forms no part of the claimed design.