The 12A is a two-way, high efficiency, passive loudspeaker. It is designed as a compact high performance system for the reproduction of speech and music program material. The 12A has a one-inch exit compression driver coupled to a 75 X 75 degree wooden waveguide horn reproducing high frequencies, and a 12-inch cone transducer in a tuned enclosure for the low frequencies. A high quality passive network operates very efficiently, also providing EQ points for a flat frequency response.