---
product_id: 445555033
title: "Dayton Audio SPA300-D 300 Watt Class-D Subwoofer Plate Amplifier"
brand: "dayton audio"
price: "148972 Ft"
currency: HUF
in_stock: true
reviews_count: 12
category: "Dayton Audio"
url: https://www.desertcart.hu/products/445555033-dayton-audio-spa300-d-300-watt-class-d-subwoofer-plate
store_origin: HU
region: Hungary
---

# Switchable 120/240V Input 300W RMS Power Variable Gain & Phase Controls Dayton Audio SPA300-D 300 Watt Class-D Subwoofer Plate Amplifier

**Brand:** dayton audio
**Price:** 148972 Ft
**Availability:** ✅ In Stock

## Summary

> 🎵 Elevate your bass game — Feel the power, own the room!

## Quick Answers

- **What is this?** Dayton Audio SPA300-D 300 Watt Class-D Subwoofer Plate Amplifier by dayton audio
- **How much does it cost?** 148972 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/445555033-dayton-audio-spa300-d-300-watt-class-d-subwoofer-plate)

## 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

- • **Powerful 300W RMS Output:** Unleash deep, room-shaking bass with precision clarity.
- • **Seamless Room Integration:** Fine-tune gain and phase for perfect audio harmony in any space.
- • **Dual Voltage Compatibility:** Plug in anywhere worldwide with 120/240V switchable input.
- • **Customizable Bass Boost at 30Hz:** Switch on 6dB extra punch exactly when you need it.
- • **Smart Auto & Manual On/Off Modes:** Save energy and extend gear life with intelligent power control.

## Overview

The Dayton Audio SPA300-D is a compact yet mighty 300 Watt Class-D subwoofer plate amplifier designed for audiophiles seeking powerful, clear bass. Featuring switchable 6dB bass boost at 30Hz, variable gain and phase controls for precise room tuning, and dual voltage input (120/240V), it offers versatile compatibility and energy-efficient operation with manual and auto on/off modes. Perfect for upgrading or replacing subwoofer amps with professional-grade sound and flexibility.

## Description

Buy Dayton Audio SPA300-D 300 Watt Class-D Subwoofer Plate Amplifier: Amplifiers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Clean sound and Powerful - Second Dayton Audio Plate amp. Works great. Pushing a Skar Audio IX-8 D4 8" 300 Watt Max Power Dual 4 Ohm Car Subwoofer in a ported box Acoustics Research Enclosure with not problem. Crossover works great as well.
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.

## Features

- RMS Output: 300W at 4 ohms
- Boost Bass at 30Hz: Switchable 6dB
- Efficient Output: Class-D Output Stage
- On/Off Modes: Manual & Auto for System Compatibility
- Room Integration: Variable Gain & Phase Controls
- Input Voltage: Switchable 120/240V

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09SJMHH9R |
| Best Sellers Rank | #48,329 in Electronics ( See Top 100 in Electronics ) #301 in Audio Component Amplifiers |
| Brand Name | Dayton Audio |
| Customer Reviews | 4.2 out of 5 stars 116 Reviews |
| Global Trade Identification Number | 00848791008221 |
| Item Dimensions | 11 x 9 x 5 inches |
| Item Weight | 2.2 Pounds |
| Item dimensions L x W x H | 11 x 9 x 5 inches |
| Manufacturer | Dayton Audio |
| Material Type | Metal |
| 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 |
| Specification Met | 40hz - 200hz |
| UPC | 848791008221 |
| Voltage | 240 Volts |
| Warranty Description | 5 Years |

## 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

![Dayton Audio 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

### ⭐⭐⭐⭐⭐ Clean sound and Powerful
*by S***. on January 31, 2026*

Second Dayton Audio Plate amp. Works great. Pushing a Skar Audio IX-8 D4 8" 300 Watt Max Power Dual 4 Ohm Car Subwoofer in a ported box Acoustics Research Enclosure with not problem. Crossover works great as well.

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐ Replace the amp and save the world
*by K***S on September 9, 2025*

The pilot light on the amp stopped working after being plugged in and running in auto mode for a few weeks. The amplifier itself is still working fine. I was able to avoid trashing a perfectly good Polk enclosure and driver by replacing the amp with this unit.

## 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 Hungary*
*Store origin: HU*
*Last updated: 2026-03-02*