The ornamental design for a speakerunit for computerdisplay, as shown and described.
FIG. 1 is a perspective view of a speaker unit for computer display.
FIG. 2 is a front elevation view thereof.
FIG. 3 is a rear elevation view thereof.
FIG. 4 is a right side elevational view thereof, the left side view being a mirror image of the right side view;
FIG. 5 is a top plan view thereof, the bottom view being a mirror image of the top view; and,
FIG. 6 is a front elevational view thereof. The broken lines showing of a computer display and a second speaker is for illustrative purposes only and forms no part of the claimed design.