104.STH – The One Systems 104.STH™ is a compact-sized 4.5″ two-way loudspeaker well-suited for general-purpose indoor applications as well as for inland environments outdoors.


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104.STH Silver Series Loudspeakers

The system’s direct-radiating transducers include a 4.5″ woofer with a 1-inch voice coil and ferrite magnet. The HF section has a 1″ HQ tweeter with an elliptically-shaped Low-Q 110o x 80o waveguide. The 104.STH is installer-configurable for Lo-Z (8 ohm) or Hi-Z (70.7 / 100 volt) operation using two input barrier strips without switches that could limit the system’s reliability.

The 104/STH uses proven One Systems weatherproofing included a robust thick-walled enclosure, specially-built components and use of stainless steel suspension hardware to ensure long useful life. The 104.STH U-Bracket is made of structural steel, with a dual-layer, zinc-rich powder coat finish. Wall and pole mount, pan / tilt brackets are available for added mounting flexibility.

U-Bracket is included as standard

  • Frequency Response: 110Hz-20kHz
  • Coverage Pattern: 110 (H) x 80 (V)
  • Crossover Frequency: 1.8kHz
  • System Sensitivity 1w/1m: 87dB
  • Power Handling: 40w
  • Input Impedance (Lo Z): 8Input Taps (Hi Z): 50/25/12.5w
  • Weight:2.4kg, 5.3 lbs
  • Size (mm): 211.2 x 156.2 x 130.5 (Not including U-Bracket)
  • Size (Inches): 8.3 x 6.15 x 5.1 (Not including U-Bra

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One Systems


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