AcousticDesign Series AD-S12T The professional small format, surface mount loudspeaker system shall be a two-way full-range design utilizing Directivity Matched Transition (DMT) to match low and high frequency coverage at the crossover point. The loudspeaker low-frequency transducer shall be an 12-inch (305 mm) woofer with a weather-resistant paper cone and a 3-inch voice coil. The loudspeaker high-frequency transducer shall be a 1-inch (25 mm) compression driver with a 1.4-inch voice-coil coupled to a baffle-integrated waveguide. The loudspeaker system shall meet the following performance criteria: effective frequency range of 52 Hz to 20 kHz (free-field, -10 dB from on-axis sensitivity); broad-band sensitivity of 95 dB SPL (on-axis, free-field sensitivity, 2.83V, 1 m); maximum rated SPL (calculated) of 120 dB continuous and 126 dB peak; rated power capacity of 50V or 300W (two hours IEC60268-1 noise); recommended amplifier power of 600W; rated impedance of 8 Ohms. The loudspeaker system's nominal coverage angle shall be 75 degrees (-6 dB) axisymmetric. The loudspeaker system connectors shall be mounted on a sealed input panel including a Euroblock connector and parallel output terminals, and shall be fitted with a protective weather cup. The loudspeaker enclosure, which shall meet IEC60529 IP-54 specifications for dust and splash resistance, shall be constructed of ABS polymer and finished in either of two RAL colors: black (9011) or white (9010). The front of the full range system shall be protected by a powder-coated aluminum grille that is free of logos or other embellishment. The enclosure shall be fitted with an integral mounting plate for a mounting system (QSC X-Mount) that allows the speaker to be rotated in four orientations and includes a tab whose removal makes the loudspeaker theft-resistant. The enclosure shall also have four M10 threaded-insert mounting points (one on the top and three on the bottom) for suspension via eye bolts as well as mount points for an optional yoke bracket. The enclosure shall be 23.5 in (596 mm) high, 13.9 in (354 mm) wide, and 12.7 in (323 mm) deep. The loudspeaker system shall have a net weight of 35 lb (16 kg). The two-way full-range loudspeaker system shall be the QSC Audio Products AD-S12T.