The One Systems ONE.SP12TTM is a weather-protected 12 two-way horn-loaded sound projector with an internal autoformer suitable for professional audio applications indoors or for inland environments outside. The system’s transducers include a 12 woofer with a 3-inch voice coil and a 3 compression driver with a pure titanium diaphragm coupled to a large-sized 60° x 40° horn. The ONE.SP12T includes an internal 400 W, 3-tap autoformer (with Hi-Z taps at 400, 200 and 100 W at 70 or 100 volts) and it can also be powered as a Lo-Z (8 ohm) system. Thanks to its power handling and sensitivity, the ONE.SP12T provides high acoustic output capability, tremendous projection and installation flexibility in a reasonably-sized package. The ONE.SP12T’s enclosure is made of strong, UV-resistant High Density Polyethylene (HDPE). Its specially built components and use of stainless steel suspension hardware ensure long useful life and safety for direct weather applications. An optional pole mount bracket is also available for customized mounting solutions. This speaker is also available as a Lo-Z (8 ohm) system without autoformer (ONE.SP12D).

The ONE.SP12T provides high vocal intelligibility and tremendous acoustic output capability from its compact enclosure. Its large compression driver with titanium diaphragm delivers extended response and permits a lower crossover frequency for more coherent sound. Its large-sized horn provides precise pattern control and long “throw” capability. The woofer’s specially treated cone and surround provide superior resonance damping and resistance against moisture and dry rot. The ONE.SP12T delivers 129 dB of continuous output using its 400 W tap at 70 or 100 volts.