---
product_id: 385101495
title: "SMP200 Class D Digital Subwoofer Amplifier Rated 200W Max"
brand: "osd audio"
price: "₩1451519"
currency: KRW
in_stock: true
reviews_count: 5
category: "Osd Audio"
url: https://www.desertcart.kr/products/385101495-smp200-class-d-digital-subwoofer-amplifier-rated-200w-max
store_origin: KR
region: South Korea
---

# Class D high efficiency Compact <9x10 inches 200W max power SMP200 Class D Digital Subwoofer Amplifier Rated 200W Max

**Brand:** osd audio
**Price:** ₩1451519
**Availability:** ✅ In Stock

## Summary

> 🎵 Feel the bass, not the bulk — power your space with SMP200!

## Quick Answers

- **What is this?** SMP200 Class D Digital Subwoofer Amplifier Rated 200W Max by osd audio
- **How much does it cost?** ₩1451519 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/385101495-smp200-class-d-digital-subwoofer-amplifier-rated-200w-max)

## Best For

- osd audio enthusiasts

## Why This Product

- Trusted osd audio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Auto On/Off:** Senses audio signals to power on/off automatically, saving energy and hassle—never forget to switch off again.
- • **Space-Savvy Design:** Compact footprint fits discreetly anywhere, ideal for sleek, modern home theater setups without clutter.
- • **Powerful Bass Impact:** Delivers up to 200W max and 120W RMS for deep, distortion-free low frequencies that command attention.
- • **Precision Bass Control:** Adjust phase, crossover (35Hz-160Hz), and volume to tailor your bass experience perfectly.
- • **Universal Compatibility:** Works seamlessly with all receivers via RCA and speaker-level inputs for ultimate system flexibility.

## Overview

The OSD Audio SMP200 is a compact, highly efficient Class D digital subwoofer amplifier delivering up to 200W max power. Designed for home theater enthusiasts, it offers versatile connectivity with RCA and speaker-level inputs, adjustable phase, crossover, and volume controls for precise bass tuning. Its smart auto on/off feature enhances convenience and energy savings, while its small footprint ensures it fits effortlessly into any audio setup, making it the perfect upgrade for millennials seeking powerful, customizable bass without sacrificing style or space.

## Description

"OSD Audio’s SMP200 Class D Digital Subwoofer Amplifier is rated at 200W max power and designed to power passive subwoofers used in home theater audio systems. This “tiny but mighty” powered sub measures less than nine inches wide and 10 inches deep but supplies an in-wall or stand-alone subwoofer the power it needs so you’ll experience gut-wrenching, heart-pounding low frequency impact (bass) on movie and music soundtracks. The advanced crossover circuit can be set at different frequency ranges (35Hz to 160Hz) and is adjustable with a front-panel control knob. Other features include front-panel adjustable phase and volume controls to dial in just the right amount of bass for your taste. The SMP200 uses Class D amplifier technology that combines the best qualities of both Class A and B amp protocols into a highly efficient and compact digital design that is ideal for budget-minded users who want a feature-rich digital sub amp that does not run hot or take up a lot of space. With both RCA and speaker level connections, the SMP200 also acts as a distributed amplifier and will power a pair of in-ceiling speakers in addition to a 6” or 8” subwoofer.Auto On/Off SwitchThe SMP200 includes auto sensing that turns on the amp when an audio signal is detected then turns off automatically after 15 minutes when a signal is not detected so no more worrying about whether you hit the off switch before bedtime.Master Volume ControlWhen properly setup, the volume control on the SMP200 will control both the amp and the receiver volume to which it is connected for simple operation. "

Review: It's a simple connect and play could not be any more simple. I hooked it up to a 10'' JBL Subwoofer and i am happy.
Review: Received this OSD SMP-100 subwoofer amp on January 9th 2020, after looking at different models this one made the most sense. After hooking it up and doing my tests this amp was exactly what I needed to include in my whole house audio system. This sub amp works excellent wired into my receiver and my 4 zone 8 speaker selector switch for my ceiling speakers with a separate not passive but an 8 inch active subwoofer, if it is wired and set up correctly this little amp @ 80RMS 100watts of power into 4 ohms can deliver enough power to shake my whole house at quarter of the volume from watching a movie or playing music it’s very clean sound with no hum feedback, it has a phase control to adjust for sub placement, a crossover control so you can adjust and set the low pass to your desire level and an overall volume control to set the desire volume, it will automatically switch off after 15 minutes if no audio signal is detected so no need for you to switch on and off manually. My recommendation is not to use speakers that are more than 8 inch 4 to 8 ohms as stated in the manual. Following a correct set up this little amp will deliver a clean solid deep bass without being out of phase with your system. This sub amp can also be used for powering an in-wall passive subwoofer like the OSD IWS 8 series which I will be doing later.

## Features

- BRING ON THE BASS: A highly efficiency Class D subwoofer amplifier that serves up big bass with up to 200W max power 120W RMS for deep, rich and distortion-free low frequency sound effects
- WORKS WITH ALL RECEIVERS: Compatible with older and newer source equipment and includes both RCA and speaker level input/outputs for greater flexibility with various home theater audio systems
- ADJUSTABLE CONTROLS: Includes auto on/off sensing as well as phase, crossover and volume controls to dial in just the right amount of bass
- EFFICIENT CLASS D TECHNOLOGY: A highly efficient Class D sub amp that is ideal for budget-minded users who want a feature-rich digital sub amp that does not run hot or take up a lot of space
- COMPACT DESIGN: Measures less than 9 inches wide and less than 10 inches deeps so it can fit just about anywhere

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07R63924G |
| Item model number | SMP-200 |
| Manufacturer | OSD Audio |
| Product Dimensions | 24.89 x 21.59 x 4.45 cm; 2 kg |

## Product Details

- **Brand:** OSD Audio
- **Item dimensions L x W x H:** 24.9 x 21.6 x 4.4 centimeters
- **Manufacturer:** OSD Audio
- **Mounting type:** Freestanding
- **Number of channels:** 1

## Images

![SMP200 Class D Digital Subwoofer Amplifier Rated 200W Max - Image 1](https://m.media-amazon.com/images/I/71pForFdsPL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***N on 22 March 2021*

It's a simple connect and play could not be any more simple. I hooked it up to a 10'' JBL Subwoofer and i am happy.

### ⭐⭐⭐⭐⭐ Review
*by R***L on 14 January 2020*

Received this OSD SMP-100 subwoofer amp on January 9th 2020, after looking at different models this one made the most sense. After hooking it up and doing my tests this amp was exactly what I needed to include in my whole house audio system. This sub amp works excellent wired into my receiver and my 4 zone 8 speaker selector switch for my ceiling speakers with a separate not passive but an 8 inch active subwoofer, if it is wired and set up correctly this little amp @ 80RMS 100watts of power into 4 ohms can deliver enough power to shake my whole house at quarter of the volume from watching a movie or playing music it’s very clean sound with no hum feedback, it has a phase control to adjust for sub placement, a crossover control so you can adjust and set the low pass to your desire level and an overall volume control to set the desire volume, it will automatically switch off after 15 minutes if no audio signal is detected so no need for you to switch on and off manually. My recommendation is not to use speakers that are more than 8 inch 4 to 8 ohms as stated in the manual. Following a correct set up this little amp will deliver a clean solid deep bass without being out of phase with your system. This sub amp can also be used for powering an in-wall passive subwoofer like the OSD IWS 8 series which I will be doing later.

### ⭐ Review
*by A***R on 17 December 2025*

Product came from the USA so it took a little time but after receiving and installing it initially seemed to work OK. However, the trigger function is a problem. Connecting to an Arcam AVR20 Integrated Amp to sync power on/off. The trigger functions fails to operate, indeed there is a "buzzing/fizzing" sound coming from the SMP500 and sounds like a short-circuit... I immediately pulled the power cord fearing damaged to either my AVR20 or the SMP500. I checked the polarity, voltage and current of the trigger cable and AVR20 output and it is within spec ( AVR20 DC +12v 70mA, 3.5mm jack, tip +). and correctly wired. In the "On" mode, it works as expected but the "Music" mode should turn off when a signal is not present and on when a signal is detected, but it's unreliable, sometimes it does, others it doesn't. I attempted to find a support link to the manufacturer (OSD) but they only offer dealer support. On the Amazon order page there is no option to "ask a question", so I contacted customer service and the only option was to return the product, no help there. I suspect that it has a fault, or the labeling is incorrect (e.g. the + and - symbols are incorrect or specifications are wrong), can you please confirm the the product labeling is correct (+ and - and trigger in/out and switch setting 12v/On/Music). Setting the switch to "12v" and "External Trigger On" in the software setting is what I understand is correct but that can't be confirmed it seems. I have decided to keep the product but am concerned that it will be a problem in the future, a risk. The reason for only two stars is that there is no UK support, to even ask a question of. So after the 30 days Amazon option of return any warranty is useless it seems. Update. Now there's a pulsing noise emitting from the driver, even when the phono isn't connected. This noise is sufficiently load that I can hear it 15 feet away in the primary listening position during the quiet gaps in films/music. For a £600+ device this is unacceptable. Now being returned and reduced to one star, zero if there was an option.

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-14*