---
product_id: 753821579
title: "OSD Audio 800W Mono-Channel Class D Subwoofer Amplifier – Onboard DSP, 4-8 Ohm – SMP500"
brand: "osd audio"
price: "€ 2250.23"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/753821579-osd-audio-800w-mono-channel-class-d-subwoofer-amplifier-onboard
store_origin: FI
region: Finland
---

# 800W peak power Class D cool running tech Variable high-cut filter OSD Audio 800W Mono-Channel Class D Subwoofer Amplifier – Onboard DSP, 4-8 Ohm – SMP500

**Brand:** osd audio
**Price:** € 2250.23
**Availability:** ✅ In Stock

## Summary

> 🎬 Feel every beat, command every scene with SMP500 power!

## Quick Answers

- **What is this?** OSD Audio 800W Mono-Channel Class D Subwoofer Amplifier – Onboard DSP, 4-8 Ohm – SMP500 by osd audio
- **How much does it cost?** € 2250.23 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/753821579-osd-audio-800w-mono-channel-class-d-subwoofer-amplifier-onboard)

## 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

- • **Effortless Integration:** Low & high-level pass-through inputs/outputs plus auto-sensing power on/off for seamless setup with any system.
- • **Precision Bass Control:** Variable high-cut filter and front panel knob let you sculpt bass and redirect highs for crystal-clear surround sound.
- • **Cool & Efficient Performance:** Advanced Class D amplification runs cool under pressure, ensuring reliability during marathon movie nights.
- • **Power that Commands Attention:** Delivers a thunderous 800W peak / 400W RMS to drive even the most demanding passive subwoofers with ease.
- • **Rack-Ready & Remote Controlled:** Sleek rack-mount design with included remote puts pro-level control at your fingertips.

## Overview

The OSD Audio SMP500 is a robust mono Class D subwoofer amplifier delivering up to 800W peak and 400W RMS at 4 ohms. Designed for high-wattage passive subwoofers, it features a variable high-cut filter, front panel controls, and both low/high-level pass-through inputs/outputs. Its efficient Class D design ensures cool operation, while auto-sensing power and remote control add convenience. Perfect for elevating home theater bass performance with professional-grade reliability.

## Description

OSD Audio800W Mono-Channel Class D Subwoofer Amplifier – Onboard DSP, 4-8 Ohm – SMP500

## Features

- The SMP500 is designed for use with higher wattage passive subwoofers that require external power with up to 800 watts power peak / 400 watts RMS with 4 ohms. It has highly efficient Class D technology to run cool under demanding loads.
- SOUND QUALITY: Get a deep, crisp, clean low-frequency sound effect in dedicated home theater systems and media rooms to improve the overall sound quality of surround sound systems with dual 100/220 voltage.
- BASS: This amplifier improves bass response of passive subs with a variable high-cut filter and a front panel control knob that routes higher frequencies to main speakers for low frequency sound effects.
- CONTROL FEATURES: The SMP500 includes front-mounted power and back panel adjustable gain. A volume control limiter protects the woofers while low and high level pass-through inputs/outputs for greater flexibility.
- DESIGN: Rack mountable, the SMP500 supplies in-wall or stand-alone subwoofers with the power they need. CE & ETL rated with an auto sensing feature that automatically turns the amp on or off when a signal is detected. A remote control is included.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07F94FSLF |
| Best Sellers Rank | #102,025 in Electronics ( See Top 100 in Electronics ) #678 in Audio Component Amplifiers |
| Brand | OSD Audio |
| Customer Reviews | 3.9 3.9 out of 5 stars (200) |
| Date First Available | July 5, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 8 pounds |
| Item dimensions L x W x H | 15 x 5 x 6 inches |
| Item model number | SMP500DSP |
| Manufacturer | OSD Audio |
| Maximum Supply Voltage | 220 Volts |
| Mounting Type | Surface Mount |
| Number of Channels | 1 |
| Output Power | 400 Watts |
| Package Type Name | cardboard box |
| Product Dimensions | 15 x 5 x 6 inches |
| Specification Met | Etl Rated |
| UPC | 819603013177 |
| Voltage | 220 Volts |

## Product Details

- **Item dimensions L x W x H:** 38.1 x 12.7 x 15.2 centimeters
- **Voltage:** 220 Volts
- **Manufacturer:** OSD Audio
- **Maximum supply voltage:** 2.2E+2 Volts
- **Mounting type:** Surface Mount

## Images

![OSD Audio 800W Mono-Channel Class D Subwoofer Amplifier – Onboard DSP, 4-8 Ohm – SMP500 - Image 1](https://m.media-amazon.com/images/I/51VHJ8bGwbL.jpg)

## Available Options

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

## Questions & Answers

**Q: how much power rms at 8 ohms?**
A: The manual mine came with "the 1000 Watt version" -- details it at providing 497 watts RMS at 8 ohms.

**Q: Anyone have an issue with the speaker out port not working?**
A: First off , do you have a audio signal out from the receiver/ amp to the input of subwoofer? Please check wiring diagram of the manual it should work.

**Q: Does the SMP100 require a 12v trigger cable to work properly?**
A: The SMP100 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, but it also has the manual on/off switch.

**Q: Will this work with a polk s35 center channel speaker?**
A: Yes. But this amp would be overkill. Simply get an a/v receiver instead.

## Frequently Bought Together

- OSD Audio 800W Mono-Channel Class D Subwoofer Amplifier – Onboard DSP, 4-8 Ohm – SMP500
- OSD Premium 12" Outdoor Subwoofer 600W, In Ground Omni Directional, IP66 Weather Resistant Black XSUB12
- OSD Forza 6.5" Landscape In Ground/Mountable 80W Speaker, Commercial 70V Tap, Outdoor Weather Resistant, Bronze (Single)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.fi/products/753821579-osd-audio-800w-mono-channel-class-d-subwoofer-amplifier-onboard](https://www.desertcart.fi/products/753821579-osd-audio-800w-mono-channel-class-d-subwoofer-amplifier-onboard)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-20*