FIG. 1 is a front elevational view of a speaker box showing my new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a left side elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is another front elevational view while in use thereof;
FIG. 8 is another rear elevational view while in use thereof;
FIG. 9 is another left side elevational view while in use thereof;
FIG. 10 is another right side elevational view while in use thereof;
FIG. 11 is another top plan view while in use thereof; and,
FIG. 12 is another bottom plan view while in use thereof.
The broken lines illustrate portions of the speaker box that form no part of the claimed design.