Loudspeaker

FIG. 1 is a front, top, right side perspective view of a loudspeaker, showing my new design; FIG. 2 is a rear, top, right side perspective view thereof; FIG. 3 is a front view thereof; FIG. 4 is a rear view thereof; FIG. 5 is a top plan view thereof; FIG. 6 is a bottom plan view thereof; FIG. 7 is a left side view thereof; and, FIG. 8 is a right side view thereof. The broken lines shown are included for the purpose of illustrating portions of the loudspeaker that form no part of the claim. claimed design and indicate that a specific length and width forms no part of the claimed design.