---
product_id: 445555033
title: "SPA300-D 300 Watt Class-D Subwoofer Plate Amplifier"
brand: "dayton audio"
price: "₩564988"
currency: KRW
in_stock: true
reviews_count: 13
category: "Dayton Audio"
url: https://www.desertcart.kr/products/445555033-spa300-d-300-watt-class-d-subwoofer-plate-amplifier
store_origin: KR
region: South Korea
---

# 300W RMS power output Class-D efficient amplification Customizable sound controls SPA300-D 300 Watt Class-D Subwoofer Plate Amplifier

**Brand:** dayton audio
**Price:** ₩564988
**Availability:** ✅ In Stock

## Summary

> 🎵 Unleash the bass, own the room — power meets precision!

## Quick Answers

- **What is this?** SPA300-D 300 Watt Class-D Subwoofer Plate Amplifier by dayton audio
- **How much does it cost?** ₩564988 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/445555033-spa300-d-300-watt-class-d-subwoofer-plate-amplifier)

## Best For

- dayton audio enthusiasts

## Why This Product

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

## Key Features

- • **Smart Energy Saver:** Auto on/off feature powers the amp only when needed, keeping your system eco-friendly and efficient.
- • **Power that Moves You:** Delivers a commanding 300W RMS and peaks at 600W for deep, dynamic bass that fills your space.
- • **Plug & Play Versatility:** Dual RCA inputs ensure seamless integration with your existing audio setup—no hassle, just pure sound.
- • **Sleek & Efficient Design:** Class-D amplification means less bulk, less heat, and more power in a compact metal chassis.
- • **Tailor Your Bass Experience:** Variable gain, crossover, and phase controls let you fine-tune your subwoofer to your room’s unique vibe.

## Overview

The Dayton Audio SPA300-D is a 300 Watt RMS Class-D subwoofer plate amplifier delivering up to 600 Watts peak power. Its compact, efficient design features customizable sound controls and versatile RCA inputs, making it an ideal, budget-friendly upgrade or replacement for subwoofer systems. With auto on/off functionality and wide voltage compatibility, it offers powerful, clear bass with energy-saving convenience.

## Description

desertcart.com: Dayton Audio SPA300-D 300 Watt Class-D Subwoofer Plate Amplifier : Electronics

Review: good replacement - I had an old expensive subwoofer in my system. When it broke I was debating sending it for repair, which seems to be ridiculous expensive. A newer model would be even more expensive. Since the problem was with the electronic I also did not want to waste the chassis and the speaker itself. So I stumbled over this subwoofer plate amplifier. Since this one is only a fraction of the cost as any other options I had, I gave it a try. By simply removing the old amplifier and mounting the new one ( needs a small frame I built ) it worked like a charm. Even with the 300W rating it creates a lot of clear sounding bass. This is a perfect replacement when you are on a low budget. It has all the knobs you need to tune and integrate it into your audio system. Requires a bit calibration to seamlessly work in your audio setup. It runs also from 120-240 Volts in case you live in Europe. I'm a happy customer now, every penny well spent.
Review: Excellent product - The internal amplifier on my Klipsch subwoofer died. I replaced it with this and it works like new. Plenty of power and it gave a new life to my subwoofer.

## Features

- High-Power Output: Delivers 300W RMS at 4 ohms, with a peak power of 600W, ensuring robust and dynamic performance
- Efficient Class-D Amplification: Utilizes Class-D topology for reduced size, weight, and exceptional power output
- Versatile Connectivity: Features 2x RCA inputs for easy integration with various audio sources
- Customizable Sound: Offers variable gain, crossover point, and switchable phase controls for optimal room integration
- Auto On/Off Functionality: Automatically powers on/off based on input signal, ensuring energy efficiency

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09SJMHH9R |
| Best Sellers Rank | #39,284 in Electronics ( See Top 100 in Electronics ) #212 in Audio Component Amplifiers |
| Brand Name | Dayton Audio |
| Customer Reviews | 4.2 out of 5 stars 130 Reviews |
| Global Trade Identification Number | 00848791008221 |
| Item Dimensions | 11 x 9 x 5 inches |
| Item dimensions L x W x H | 11 x 9 x 5 inches |
| Manufacturer | Dayton Audio |
| Material Type | Metal |
| Maximum Output Power | 600 Watts |
| Maximum Supply Voltage | 240 Volts (AC) |
| Minimum Supply Voltage | 115 Volts (AC) |
| Model | SPA300-D |
| Mounting Type | Surface Mount |
| Number of Channels | 1 |
| Output Power | 300 Watts |
| Package Type Name | Box" or "Rigid Packaging |
| Part Number | SPA300-D |
| Specification Met | 40hz - 200hz |
| UPC | 848791008221 |
| Voltage | 240 Volts |

## Product Details

- **Item dimensions L x W x H:** 11 x 9 x 5 inches
- **Manufacturer:** Dayton Audio
- **Maximum Supply Voltage:** 240 Volts (AC)
- **Minimum Supply Voltage:** 115 Volts (AC)
- **Voltage:** 240 Volts

## Images

![SPA300-D 300 Watt Class-D Subwoofer Plate Amplifier - Image 1](https://m.media-amazon.com/images/I/61KkO6MgPXL.jpg)

## Questions & Answers

**Q: Is this rated for 2 ohm loads?**
A: The instructions only refer to 4 ohm loads and the sub I'm driving is 4 ohms. I'm not sure about 2 ohms working without blowing up the unit.

**Q: do you get the power cord and can i use 4om speaaker**
A: The power cord is included.    It is rated at 300 watts for a 4 ohm speaker, so I would think it supports a 4 ohm speaker.

**Q: What are the cut out dimensions? Two very different sets of dimensions are included in the product description.**
A: meant to add that the overall plate is about an inch wider and an inch taller -  so 8 inches high by about 7 inches wide ( not exact ).

**Q: Does the plate amp come with its 110 Vac -120 Vac power cord?**
A: It does come with the power cord.

## Customer Reviews

### ⭐⭐⭐⭐⭐ good replacement
*by D***R on March 1, 2024*

I had an old expensive subwoofer in my system. When it broke I was debating sending it for repair, which seems to be ridiculous expensive. A newer model would be even more expensive. Since the problem was with the electronic I also did not want to waste the chassis and the speaker itself. So I stumbled over this subwoofer plate amplifier. Since this one is only a fraction of the cost as any other options I had, I gave it a try. By simply removing the old amplifier and mounting the new one ( needs a small frame I built ) it worked like a charm. Even with the 300W rating it creates a lot of clear sounding bass. This is a perfect replacement when you are on a low budget. It has all the knobs you need to tune and integrate it into your audio system. Requires a bit calibration to seamlessly work in your audio setup. It runs also from 120-240 Volts in case you live in Europe. I'm a happy customer now, every penny well spent.

### ⭐⭐⭐⭐⭐ Excellent product
*by L***F on June 16, 2026*

The internal amplifier on my Klipsch subwoofer died. I replaced it with this and it works like new. Plenty of power and it gave a new life to my subwoofer.

### ⭐⭐⭐⭐ Overall very happy but seems a bit underpowered
*by J***K on June 30, 2026*

Overall I'm quite happy with the product. I 3D printed a nice enclosure to house the amp, with ventilation slots top and bottom. It's size is nice and compact so it is easy to manipulate and install. No noise or hum during operation. Auto mode works well. My only surprise was how high I had to place the volume to get a suitable level. My old (cheap) A/B amp was only 200w, but setting it to 3 out of 10 was plenty for my lounge room. This amp I had to set it over half way to get the same level. Saved over $100 by buying it direct from Amazon US and shipping it to Australia.

## Frequently Bought Together

- Dayton Audio SPA300-D 300 Watt Class-D Subwoofer Plate Amplifier
- DteeDck RCA Splitter 1 Female to 2 Male, 2 Pack - RCA Audio Video Cable Splitter Adapter, Dark Blue
- VCE 6-Pack Gold Plated RCA Female to RCA Female Coupler,Compatible with Phono,Speaker,RCA Cable,Amplifier

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-07-14*