SMP500DSP High Power Subwoofer Amplifier 400W RMS/1000W Peak 4 Ohm Stable W/ Remote Control

OSD Audio’s SMP500DSP is a highly efficient Class D dedicated subwoofer amplifier that supplies passive subwoofers up to 1000W power peak power/400W RMS 4 ohm stable, so you can enjoy all the crashes, crunches and car chases with spine-tingling exhilaration.

OSD Audio’s SMP500DSP Class D Subwoofer Amp is designed for use with higher wattage passive subwoofers such as in-wall subs that require external power. This is a highly efficient Class D subwoofer amp that serves up 1000W of power peak and 400W RMS @ 4 ohms for deep, crisp, clean low-frequency sound effects in dedicated home theater systems and media rooms.

Compact but powerful, the SMP500DSP includes a built-in Digital Signal Processor (DSP) for high performance at low clock frequencies and improves bass response of subs with a variable high-cut filter with a front panel control knob that routes higher frequencies to main speakers.

Compatible with new and old-school source equipment includes both signal (low level) and speaker (high level) pass through input/outputs for greater flexibility. Loaded with high-end features at an affordable price, the SMP500DSP includes front-mounted power meter, auto power on/off and dual 110/220 voltage.

  • Built-in Digital Sound Processor
  • Front-mounted power meter and back panel adjustable gain
  • Volume control limiter protects the woofers
  • Low-level and high-level pass-through input/outputs
  • Class D technology combines the best qualities of both class A and B amp
  • Low distortion with high efficiency
  • Includes a variable high-cut filter that routes higher frequencies to main speakers
  • Improves the overall sound quality of home theater surround sound systems
  • Remote control included

Additional Information

More Information
ManufacturerOSD Audio
Model NumberSMP-500DSP
TypeSubwoofer Amplifier

  • Mono Class D dedicated subwoofer amplifier
  • 1000 Peak Power / 400W Continuous RMS @ 4 ohm
  • Total Harmonic Distortion (THD): <1%
  • Adjustable slope: 12dB – 45dB
  • 7-band EQ
  • Adjustable low-pass crossover:
  • Phase control: 0 -315°/45°increents
  • External trigger: 12V
  • Night Mode: yes
  • Additional Front panel controls: Phase Switch and Volume Control
  • Choice of Signal Level Input or LFE (Low-Frequency Effects)
  • Three Turn-on Choices: Music Sensing, Manual On or hard 12 Volt Trigger
  • Back Panel Adjustable Gain/Volume Control Limiter
  • Both Signal (Low Level) and Speaker (High Level) Pass through Input/outputs
  • Maximum Output: two 8-ohm Sub Woofers or Single 8-ohm DVC Woofer
  • 110/220V switchable
  • D*H*W:  17.125” W x 1.77” H x 9.5”D
  • Weight: 7.6 pounds
  • Auto Off Time: 20 minutes
  • Auto-on Sensitivity: 5 mV
  • Remote control included
  • 2-Year Warranty

California's Proposition 65
Write Your Own Review
You're reviewing:SMP500DSP High Power Subwoofer Amplifier 400W RMS/1000W Peak 4 Ohm Stable W/ Remote Control
Your Rating
Frequently Bought Together