FIG. 1 is a front, right perspective view of the speaker controller;
FIG. 2 is a rear, right perspective view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a left, elevation view thereof;
FIG. 6 is a front, elevation view thereof;
FIG. 7 is a right, elevation view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken lines showing exemplar control buttons, a stand, feet, seams, vents, and input/output connectors are for illustrative purpose only and form no part of the claimed design.