OSD Audio - SMP200 200W Mono Class D Subwoofer Amplifier with Auto Sensing and Adjustable Crossover - Black
Reviews coming soon
About this product
The SMP200 is a compact Class D mono subwoofer amplifier built to power passive subwoofers in home theater and whole-house audio systems. It supplies 120W RMS at 8 ohms with 240W peak, or 200W RMS at 4 ohms with 400W peak, giving in-wall and stand-alone passive subs the power they need for low-frequency impact on movie and music soundtracks. An advanced crossover circuit adjusts from 35Hz to 160Hz using the front-panel control knob, with additional front-panel phase and volume controls to dial in the right amount of low-frequency effect for the room. Inputs accept either speaker-level or line-level RCA connections, so the amplifier works with both modern receivers and older source equipment. Auto-sensing turns the amplifier on when a signal is detected and off when it is not, and a 12V trigger mode supports integration with automated systems. The chassis measures 8.5 by 1.75 by 9.8 inches and weighs 6.7 pounds, fitting easily into a rack or cabinet.
Features
200W RMS at 4 Ohms in a Compact Chassis
Class D amplification delivers 120W RMS at 8 ohms with 240W peak, or 200W RMS at 4 ohms with 400W peak, from a chassis under nine inches wide. That is enough power to drive in-wall or stand-alone passive subwoofers hard enough for genuine low-frequency impact on movie and music soundtracks.
Adjustable 35Hz to 160Hz Low-Pass Filter
An advanced crossover circuit sets the upper frequency limit anywhere from 35Hz to 160Hz using the front-panel knob. Tuning the crossover controls the overlap between the subwoofer and the main speakers, producing a seamless handoff and distortion-free bass instead of a boomy or hollow midbass region.
Front-Panel Phase and Volume Controls
Variable phase adjustment from 0 to 180 degrees aligns the subwoofer with the main speakers so bass reinforces rather than cancels. A front-panel volume control sets the level of low-frequency effects. Both controls sit on the front for quick adjustment during setup without reaching behind the rack.
Speaker-Level and Line-Level RCA Inputs
Choose speaker-level (high level) inputs for older receivers without a dedicated subwoofer output, or line-level RCA inputs for modern sources. This flexibility means the amplifier integrates with both current AV receivers and legacy equipment, and supports distributed power for speakers and subs.
Auto On/Off Sensing and 12V Trigger
Auto-sensing turns the amplifier on when it detects a signal and powers it down when the signal stops, so the unit can stay wired into an always-on system without wasting energy. A 12V trigger mode allows control-system integration. 95dB signal-to-noise ratio, ETL and CE certified, 2-year warranty.
Specifications
- Continuous Watts x Channel @ Ohms200W x 1 @ 4 Ohms; 120W x 1 @ 8 OhmsNumber of Channels1Number of Audio Zones1Network Connector(s)No network connectors
Reviews
This product doesn't have any reviews yet.
Compare similar products
The SMP200 is a compact Class D mono subwoofer amplifier built to power passive subwoofers in home theater and whole-house audio systems. It supplies 120W RMS at 8 ohms with 240W peak, or 200W RMS at 4 ohms with 400W peak, giving in-wall and stand-alone passive subs the power they need for low-frequency impact on movie and music soundtracks. An advanced crossover circuit adjusts from 35Hz to 160Hz using the front-panel control knob, with additional front-panel phase and volume controls to dial in the right amount of low-frequency effect for the room. Inputs accept either speaker-level or line-level RCA connections, so the amplifier works with both modern receivers and older source equipment. Auto-sensing turns the amplifier on when a signal is detected and off when it is not, and a 12V trigger mode supports integration with automated systems. The chassis measures 8.5 by 1.75 by 9.8 inches and weighs 6.7 pounds, fitting easily into a rack or cabinet.
The SMP300 is a Class D mono subwoofer amplifier delivering up to 500W peak power at 4 ohms and 250W continuous RMS, built for passive subwoofers such as in-wall models that require external power. At only 3 inches high it fits inside any equipment rack or cabinet and includes 1U rack mounting hardware. A front-panel variable low-pass filter adjusts from 35Hz to 180Hz to control the overlap between the subwoofer and main speakers, while variable phase control from 0 to 180 degrees fine-tunes alignment so bass reinforces rather than cancels. Front-panel volume completes the setup controls. Multiple connection options include LFE input plus line-level and speaker-level inputs, covering both newer receivers and older source equipment. Auto-sensing shuts the amplifier down when no signal is detected, and the power supply is switchable between 120V and 230V. Frequency response spans 20Hz to 160Hz within 1dB with a 95dB signal-to-noise ratio. ETL and CE certified with a 2-year warranty.
The Dayton Audio SPA1000 subwoofer amplifier provides nearly a kilowatt of clean, reliable audio power—just what you need to get big sound out of large, low-efficiency subwoofer speaker systems.
The SMP500DSP is a Class D mono subwoofer amplifier built for higher-wattage passive subwoofers such as in-wall models that require external power. It delivers 400W RMS and 800W peak at 4 ohms, or 250W RMS and 500W peak at 8 ohms, in a rack-mountable 1U chassis. A front-panel variable high-cut filter adjusts from 30Hz to 150Hz, routing higher frequencies to the main speakers so the subwoofer concentrates on low-frequency content. Additional front-panel controls cover phase and volume, and the amplifier includes an adjustable gain and volume limiter to protect woofers from overdrive. Turn-on options include music sensing, manual on or 12V trigger. Input choices cover signal-level and speaker-level connections plus LFE, with speaker pass-through outputs for older and newer systems alike. Frequency response spans 10Hz to 150Hz with a 95dB signal-to-noise ratio and air cooling. The power supply is switchable between 115V and 230V. ETL and CE rated with a 2-year warranty.
Specs
Be the first to ask a question.
We’ll try to get your question answered within 24 hours by a Best Buy customer or brand representative.
