---
product_id: 5404630
title: "SPA500 500W Subwoofer Plate Amplifier"
brand: "dayton audio"
price: "$1421.41"
currency: USD
in_stock: true
category: "Dayton Audio"
url: https://www.desertcart.ec/products/5404630-spa500-500w-subwoofer-plate-amplifier
store_origin: EC
region: Ecuador
---

# 500W clean power output patented tracking downconverter custom low-frequency EQ SPA500 500W Subwoofer Plate Amplifier

**Brand:** dayton audio
**Price:** $1421.41
**Availability:** ✅ In Stock

## Summary

> 🔊 Unleash the bass that commands the room — power, precision, and protection in one sleek amp!

## Quick Answers

- **What is this?** SPA500 500W Subwoofer Plate Amplifier by dayton audio
- **How much does it cost?** $1421.41 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/5404630-spa500-500w-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:** Low frequency parametric EQ lets you boost or cut frequencies to perfectly match your room and taste.
- • **Protect Your Investment:** Advanced soft clip circuitry expands headroom and safeguards your subwoofer from damage.
- • **Toroidal Transformer Tech:** Premium toroidal power supply ensures stable, noise-free performance for deep, rich lows.
- • **Efficiency Meets Innovation:** Patented tracking downconverter power supply maximizes energy use, keeping your system cool and green.
- • **Pure Power, Zero Distortion:** High power Class-AB output stage delivers crystal-clear, controlled bass without muddiness.

## Overview

The Dayton Audio SPA500 is a 500W Class-AB subwoofer plate amplifier featuring a patented tracking downconverter for high efficiency, a toroidal power transformer for stable power delivery, and a low-frequency parametric EQ for customizable sound shaping. Its advanced soft clip circuitry enhances headroom and protects your subwoofer, making it a top-tier choice for audiophiles seeking powerful, clean bass performance.

## Description

desertcart.com: Dayton Audio SPA500 500W Subwoofer Plate Amplifier : Electronics

## Features

- High power Class-AB output stage for clean, controlled output
- Patented tracking downconverter power supply for high efficiency
- Toroidal power supply transformer
- Low frequency parametric EQ allows you to boost or cut to custom-tailor sound
- Advanced soft clip circuitry improves headroom and protects woofers

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0048FHWL8 |
| Best Sellers Rank | #298,035 in Electronics ( See Top 100 in Electronics ) #1,351 in Audio & Video Distribution Wall Plates |
| Brand Name | Dayton Audio |
| Customer Reviews | 4.3 4.3 out of 5 stars (43) |
| Global Trade Identification Number | 00844632015922 |
| Item Dimensions | 5.24 x 11.94 x 11.94 inches |
| Manufacturer | Dayton Audio |
| Material Type | Hercules |
| Model | SPA500 |
| Mounting Type | Clip On |
| Number of Channels | 1 |
| Output Power | 273 Watts |
| Package Type Name | Box |
| Part Number | 300-807 |
| Specification Met | FCC |
| Supply Current | 4.7 Amps |
| UPC | 844632015922 |
| Voltage | 5 Volts |

## Product Details

- **Brand:** Dayton Audio
- **Item dimensions L x W x H:** 5.24 x 11.94 x 11.94 inches
- **Manufacturer:** Dayton Audio
- **Mounting Type:** Clip On
- **Voltage:** 5 Volts

## Images

![SPA500 500W Subwoofer Plate Amplifier - Image 1](https://m.media-amazon.com/images/I/81vtey8NgZL.jpg)
![SPA500 500W Subwoofer Plate Amplifier - Image 2](https://m.media-amazon.com/images/I/81esPEkbsLL.jpg)
![SPA500 500W Subwoofer Plate Amplifier - Image 3](https://m.media-amazon.com/images/I/71jgCx44fsL.jpg)
![SPA500 500W Subwoofer Plate Amplifier - Image 4](https://m.media-amazon.com/images/I/81LRbbxRnoL.jpg)

## Questions & Answers

**Q: would this unit require an additional crossover for some one building a sub?**
A: No, this work perfect for Sub with only direct signal from mixer. This have filters and frequency variant in the controls. It's a excelent product for subs

**Q: What’s it mean when the green power light  flickers  Red.?**
A: That means you are driving the amp beyond its limits and driving it into clipping which may damage the amp as well as the driver.

**Q: Would a lower impedance sub like a jl audio 8w77 @3ohms work with this amplifier?**
A: It is not recommended to use any driver with an impedance under four ohms.

**Q: can i hook this up to a home theater reciever?**
A: If it has a subwoofer output.

## Frequently Bought Together

- Dayton Audio SPA500 500W Subwoofer Plate Amplifier
- Sewell SW-29863-12 Deadbolt Banana Plugs 12-Pairs by, Gold Plated Speaker Plugs, Quick Connect
- FosPower Subwoofer Cable (10 FT) RCA to RCA Audio Stereo Cable, Male to Male - Dual Shielded Cord | 24K Gold Plated Connector | Corrosion Resistant | Clean Sounding Signal

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**Shop now:** [https://www.desertcart.ec/products/5404630-spa500-500w-subwoofer-plate-amplifier](https://www.desertcart.ec/products/5404630-spa500-500w-subwoofer-plate-amplifier)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-07-05*