The SMP100 Class D Digital Subwoofer Amplifier from OSD Audio is a compact 100W amplifier designed to power passive subwoofers used in home theaters or whole house audio systems. Despite its small size, this 'tiny but mighty' powered sub provides the necessary power to in-wall or stand-alone subwoofers, allowing you to experience room-shaking low-frequency impact (bass) on movie and music soundtracks.

The advanced crossover circuit of the SMP100 can be set at different frequency ranges (35Hz to 160Hz) and can be adjusted with the front-panel control knob, while the highly efficient Class D technology runs cool under demanding loads. Other features include front-panel adjustable phase and volume controls, choice of speaker level or audio line level inputs (RCA), and an auto sensing feature that automatically turns the amplifier on or off when a signal is detected.
  • Amplifier Type: Subwoofer Amplifier Mono
  • Amplifier Class: Class D
  • Channels/Zones: 1
  • Power Output @ 8 Ohm: 80W RMS / 160W Peak
  • Power Output @ 4 Ohm: 100W RMS / 200W Peak
  • Frequency Response:  10Hz - 160Hz
  • Impedance: 8 Ohm and 4 Ohm Stable
  • Transformer Type: Switch-Mode 
  • Input Terminals:  Speaker (High) Level / Signal (Low) Level RCA 
  • Outputs: Subwoofer, Speaker Pass-through 
  • Input Sensitivity: 200mV
  • Crossover: 40-160Hz 
  • Phase: 0-180°
  • Signal to Noise Ratio: 95 dB 
  • Air-cooled or Fan-cooled: Air
  • Control: Phase, Crossover and Level
  • Remote Control: No
  • 12 Volt Triggers (Trigger Mode):
  • Auto-On Sensing: Yes
  • Power Supply: 110-120/220-240VAC
  • Rack Mountable: No
  • Dimensions (L x D x H): 5.6" x 4.75" x 1.8"
  • Weight: 1.75 lbs
  • Rating: ETL, CE