---
product_id: 5404630
title: "SPA500 500W Subwoofer Plate Amplifier"
brand: "dayton audio"
price: "NZ$1637"
currency: NZD
in_stock: true
reviews_count: 10
category: "Dayton Audio"
url: https://www.desertcart.nz/products/5404630-spa500-500w-subwoofer-plate-amplifier
store_origin: NZ
region: New Zealand
---

# 500W Class-AB power output Patented tracking downconverter for efficiency Low frequency parametric EQ for custom sound SPA500 500W Subwoofer Plate Amplifier

**Brand:** dayton audio
**Price:** NZ$1637
**Availability:** ✅ In Stock

## Summary

> 🔊 Elevate your bass game — because your sound deserves the spotlight.

## Quick Answers

- **What is this?** SPA500 500W Subwoofer Plate Amplifier by dayton audio
- **How much does it cost?** NZ$1637 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/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

- • **Custom-Tailored Bass:** Low frequency parametric EQ lets you boost or cut frequencies to perfectly match your vibe.
- • **Efficiency Meets Innovation:** Patented tracking downconverter power supply maximizes energy use, reducing waste and heat.
- • **Advanced Soft Clip Protection:** Protect your woofers with smart circuitry that expands headroom and prevents distortion.
- • **Powerful 500W Class-AB Output:** Experience clean, controlled bass that commands attention in any room.
- • **Toroidal Transformer Stability:** Robust toroidal power supply transformer ensures consistent, noise-free performance.

## 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 precise sound customization. Its advanced soft clip circuitry protects your speakers while delivering clean, powerful bass, making it an ideal upgrade for audiophiles seeking professional-grade subwoofer amplification.

## Description

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

Review: Great sub-amp replacement! - Absolute better replacement of my original Infinty sub-amp that died! Been a Parts Express customer for many years, was surprised they were the seller of this item, no complaints at all!
Review: Easy bangers right here - Measure, cut, drill, mount, wire, power, thump! Easy as that, I am very happy with these. (I ordered two)

## 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 | #242,626 in Electronics ( See Top 100 in Electronics ) #1,092 in Audio & Video Distribution Wall Plates |
| Brand | Dayton Audio |
| Brand Name | Dayton Audio |
| Customer Reviews | 4.0 out of 5 stars 43 Reviews |
| Global Trade Identification Number | 00844632015922 |
| Item Dimensions | 5.24 x 11.94 x 11.94 inches |
| Item dimensions L x W x H | 5.24 x 11.94 x 11.94 inches |
| Manufacturer | Dayton Audio |
| Model | SPA500 |
| Mounting Type | Clip On |
| Number of Channels | 1 |
| Number of Items | 1 |
| Package Type Name | Box |
| Part Number | 300-807 |
| Specification Met | FCC |
| Supply Current | 4.7 A |
| 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)

## 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great sub-amp replacement!
*by J***T on June 5, 2024*

Absolute better replacement of my original Infinty sub-amp that died! Been a Parts Express customer for many years, was surprised they were the seller of this item, no complaints at all!

### ⭐⭐⭐⭐⭐ Easy bangers right here
*by B***E on October 15, 2021*

Measure, cut, drill, mount, wire, power, thump! Easy as that, I am very happy with these. (I ordered two)

### ⭐ Do not but Dayton bad
*by R***R on September 1, 2026*

I have bought 3 of these They all started popping then died All of them under a year Dayton didnt even reply back to me I wont buy these ever again no power configuration nothing Dayton I will never buy another one of your products

## 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.nz/products/5404630-spa500-500w-subwoofer-plate-amplifier](https://www.desertcart.nz/products/5404630-spa500-500w-subwoofer-plate-amplifier)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-09-24*