Weather-proof passive column loudspeaker in a closed aluminium cabinet for 100 V public-address systems or 8-ohm operation. It uses four 4-inch mid-woofers and one compression tweeter, with a 120–18,000 Hz frequency range, 94 dB sensitivity, 121 dB maximum SPL, and 100° x 50° dispersion. A power selector provides 30 W, 60 W, or 120 W RMS taps, and a mounting bracket is included.