The ornamental design for a loudspeaker, as shown and described.
FIG. 1 is a top front perspective view of a loudspeaker showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a right side elevational view thereof, the left side being a mirror image; and
FIG. 4 is a top plan view thereof, the bottom being a mirror image; and,
FIG. 5 is a rear elevational view thereof.
The broken lines shown in FIGS. 1-5 extending behind the front bezel of the loudspeaker represent a loudspeaker cabinet. In FIGS. 1 and 2, there is additionally a broken line representation of a horn and compression driver at the base of the horn shown in the front of the loudspeaker forms. In FIG. 3 there is a further the broken line representation of a small visible portion of the horn seen in broken lines in FIGS. 1 and 2. In FIG. 1 there is a broken line representation of an inside corner edge of the bottom port of the loudspeaker, and in FIG. 2 the broken line rectangle in the bottom port of the loudspeaker is a boundary line. The broken line representations of the above-mentioned structures form no part of the claimed design. The region within the broken line boundary in FIG. 2 also forms no part of the claimed design.