---
product_id: 445555033
title: "SPA300-D 300 Watt Class-D Subwoofer Plate Amplifier"
brand: "dayton audio"
price: "HK$2964"
currency: HKD
in_stock: true
category: "Dayton Audio"
url: https://www.desertcart.hk/products/445555033-spa300-d-300-watt-class-d-subwoofer-plate-amplifier
store_origin: HK
region: Hong Kong
---

# 300W RMS power output Class-D efficient amplification Dual RCA inputs for versatile connectivity SPA300-D 300 Watt Class-D Subwoofer Plate Amplifier

**Brand:** dayton audio
**Price:** HK$2964
**Availability:** ✅ In Stock

## Summary

> 🎵 Feel the Power, Own the Room

## Quick Answers

- **What is this?** SPA300-D 300 Watt Class-D Subwoofer Plate Amplifier by dayton audio
- **How much does it cost?** HK$2964 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/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

- • **Tailor Your Bass:** Adjust gain, crossover, and phase controls to perfectly match your room’s acoustics and vibe.
- • **Smart Energy Saver:** Auto on/off functionality powers the amp only when needed, keeping your setup eco-friendly and efficient.
- • **Power that Moves You:** Unleash a thunderous 300W RMS with peaks up to 600W for immersive bass that commands attention.
- • **Plug & Play Simplicity:** Dual RCA inputs ensure seamless integration with your favorite audio sources—no hassle, just pure sound.
- • **Sleek & Efficient Design:** Class-D amplification means high power with minimal size and weight—perfect for modern setups.

## Overview

The Dayton Audio SPA300-D is a compact yet powerful 300W RMS Class-D subwoofer amplifier designed for audiophiles seeking dynamic bass performance. Featuring versatile connectivity, customizable sound controls, and energy-saving auto on/off, it delivers professional-grade audio enhancement in a sleek, surface-mount metal chassis.

## Description

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

## 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 | #74,412 in Electronics ( See Top 100 in Electronics ) #434 in Audio Component Amplifiers |
| Brand Name | Dayton Audio |
| Customer Reviews | 4.2 4.2 out of 5 stars (131) |
| Global Trade Identification Number | 00848791008221 |
| Item Dimensions | 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.

## 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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**Shop now:** [https://www.desertcart.hk/products/445555033-spa300-d-300-watt-class-d-subwoofer-plate-amplifier](https://www.desertcart.hk/products/445555033-spa300-d-300-watt-class-d-subwoofer-plate-amplifier)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-07-27*