One Systems ONESP12T

One Systems ONESP12T Horn-loaded, high SPL 12” two-way weather protected system in rotomolded enclosure. 500W continuous power handling. 90Hz – 14kHz frequency response. Hi-Z operation with three tap autoformer 400w, 200, 100w @ 70.7100 v. IP55 weather rated. U-bracket included. Bare wire inputs, gray finish


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The One Systems ONESP12T is a weather protected sound reinforcement system. The high density polyethylene enclosure is UV-resistant and is ported to aid low frequency extension. The 12″ two way is horn-loaded to achieve higher SPL than would otherwise be possible. There are 5 integrated rigging points, which can be used in conjunction with the included U-Bracket kit for mounting to walls or ceilings. Two optional Pole Mount Kits are available. The grille is made from CNC punched steel, and coated in a two-layer zinc rich, UV resistant powder coat finish.

The 12″  woofer uses a treated paper pulp cone for resistance against moisture absorption and dry rot. The high energy ferrite magnetics ensure high SPL for maximum coverage from a small system. The high frequency driver is mounted in front of the woofer to a large mouthed horn that provides 60 x 40 dispersion. This allows the compression driver to be crossed over at a lower frequency to maintain full pattern control. The large format compression driver in the One Systems ONESP12T is a new design which provides extremely high output capability and avoids the need for separate mid and high frequency drivers. The system offers taps at 400 watts, 200 watts and 100 watts at either 70.7 or 100 volts.

The ONESP12T is well suited to outdoor environments where a reliable, weatherproof system is specified.

U-Bracket is included


•High-performance horn-loaded 12-inch two-way speaker that provides high intelligibility and prodigious output capability
• 400 watt, 3-tap autoformer with low insertion loss and wide bandwidth (taps at 400, 200 and 100 watts) at 70.7 or 100 V
• High 103 dB (1 watt / 1 meter) sensitivity
• Large-sized 60o x 40o horn and 3-inch HF driver with titanium
diaphragm provides superb pattern control and impressive projection
• Includes robust U-Bracket made of structural steel with dual-layer, zinc-rich powder coating
• Stainless steel rigging points provide long-term safety and high corrosion resistance
• IP 55 direct weather rating
• Optional SP.PMK and SP.PMT pole mount kits available for
mounting to round or square poles


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