Weather-proof passive column loudspeaker for 100 V public address systems or 8-ohm operation. The speaker uses four 4-inch mid-woofers and one 1-inch compression tweeter in a closed aluminium cabinet with an acoustic-foam-backed white grille. It provides a 120–18,000 Hz frequency range, 94 dB sensitivity, 121 dB maximum SPL, 100° × 50° dispersion, IP56 protection, and includes a mounting bracket.