FIG. 1 is a rear elevational view of the tiltable loudspeaker enclosure; FIG. 2 is a left side view of the tiltable loudspeaker enclosure; FIG. 3 is a front elevational view of the tiltable loudspeaker enclosure; FIG. 4 is a right side view of the tiltable loudspeaker enclosure; FIG. 5 is a top view of the tiltable loudspeaker enclosure; and, FIG. 6 is a bottom view of the tiltable loudspeaker enclosure.