The ornamental design for a speakertower with mediadock slots, as shown and described.
FIG. 1 is a perspective view of a speaker tower with media dock slots, embodying my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a right side elevation view thereof;
FIG. 5 is a left side elevation view thereof;
FIG. 6 is a front elevation view thereof; and,
FIG. 7 is a rear elevation view thereof.
The broken lines shown are included for the purpose of illustrating portions of the speaker tower with media dock slots that form no part of the claim.