---
product_id: 530911742
title: "Fosi Audio 48V 5A Power Adapter Supply for Home Audio Bluetooth Stereo Receiver Amplifier Mini Hi-Fi Class D Integrated Amp"
brand: "fosi audio"
price: "R2298"
currency: ZAR
in_stock: true
reviews_count: 13
category: "Fosi Audio"
url: https://www.desertcart.co.za/products/530911742-fosi-audio-48v-5a-power-adapter-supply-for-home-audio
store_origin: ZA
region: South Africa
---

# 48V stable output 5A high current capacity Built-in safety protections Fosi Audio 48V 5A Power Adapter Supply for Home Audio Bluetooth Stereo Receiver Amplifier Mini Hi-Fi Class D Integrated Amp

**Brand:** fosi audio
**Price:** R2298
**Availability:** ✅ In Stock

## Summary

> 🔊 Power your passion with clean, reliable energy — don’t let your sound fall flat!

## Quick Answers

- **What is this?** Fosi Audio 48V 5A Power Adapter Supply for Home Audio Bluetooth Stereo Receiver Amplifier Mini Hi-Fi Class D Integrated Amp by fosi audio
- **How much does it cost?** R2298 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/530911742-fosi-audio-48v-5a-power-adapter-supply-for-home-audio)

## Best For

- fosi audio enthusiasts

## Why This Product

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

## Key Features

- • **Compact Powerhouse:** Lightweight and sleek design fits seamlessly into any home or office audio environment.
- • **Safety First, Always:** Integrated overcurrent and overvoltage protection safeguards your gear and your space.
- • **Amp Up Without Limits:** Delivers a robust 5A current, perfect for high-power audio setups demanding clean, consistent energy.
- • **Engineered for Longevity:** Crafted with premium materials to provide reliable, long-term performance you can trust.
- • **Power Your Sound with Precision:** Stable 48V output ensures your amplifier performs at its peak without interruption.

## Overview

The Fosi Audio 48V 5A Power Adapter is a premium, compact power supply designed specifically for high-performance audio amplifiers. It delivers a stable 48V output with up to 5A current, ensuring clean, distortion-free sound. Built with durable materials and advanced safety features like overcurrent and overvoltage protection, it guarantees reliable and safe operation in any home or office audio setup.

## Description

Buy Fosi Audio 48V 5A Power Adapter Supply for Home Audio Bluetooth Stereo Receiver Amplifier Mini Hi-Fi Class D Integrated Amp: Amplifiers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Nice upgrade for even more clean power. - Seems to be doing as expected! Very good value!
Review: Good quality product, worked great. This is the required item for the AMPs full power output. - These are the required power supply model to get the full benefit of the Amps output power potential. Produced a clean sound with no noise distortion. They work well, and I seem to be well made. With a power supply you don’t want the cheapest model, especially for fire hazard potential. Always make sure you get the correctly matched item.

## Features

- The 48V 5A power adapter supply is specifically designed for use with amplifiers and is ideal for providing reliable power to Fosi Audio amplifiers, such as BT20A Pro, TB10D, V3, and ZA3 amplifiers
- Provides a stable and reliable output voltage of 48V for powering your device. Capable of delivering up to 5A of current, making it suitable for high-power applications
- Manufactured with high-quality materials, ensuring long-term durability and reliability
- Incorporates several safety features, including overcurrent protection and overvoltage protection, to ensure safe operation
- The compact and lightweight design allows for easy portability and uses in tight spaces. It can be used in a range of settings, including home, office, or industrial environments

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C2BQ4P8J |
| Best Sellers Rank | #17,841 in Electronics ( See Top 100 in Electronics ) #84 in Audio Component Amplifiers |
| Customer Reviews | 4.5 4.5 out of 5 stars (413) |
| Date First Available | April 15, 2023 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.74 pounds |
| Item model number | 48V |
| Manufacturer | Fosi Audio |
| Product Dimensions | 7.6 x 3.54 x 1.5 inches |

## Product Details

- **Amperage:** 5 Amps
- **Brand:** Fosi Audio
- **Color:** Black
- **Compatible Devices:** Amplifiers
- **Connector Type:** Barrel Connector
- **Included Components:** 1 x AC Adapter
- **Input Voltage:** 48 Volts
- **Special Feature:** Lightweight Design
- **Total USB Ports:** 1
- **Wattage:** 36 watts

## Images

![Fosi Audio 48V 5A Power Adapter Supply for Home Audio Bluetooth Stereo Receiver Amplifier Mini Hi-Fi Class D Integrated Amp - Image 1](https://m.media-amazon.com/images/I/61w7UQ-tuxL.jpg)
![Fosi Audio 48V 5A Power Adapter Supply for Home Audio Bluetooth Stereo Receiver Amplifier Mini Hi-Fi Class D Integrated Amp - Image 2](https://m.media-amazon.com/images/I/61lbQrKvudL.jpg)
![Fosi Audio 48V 5A Power Adapter Supply for Home Audio Bluetooth Stereo Receiver Amplifier Mini Hi-Fi Class D Integrated Amp - Image 3](https://m.media-amazon.com/images/I/61UDkJ8kl2L.jpg)
![Fosi Audio 48V 5A Power Adapter Supply for Home Audio Bluetooth Stereo Receiver Amplifier Mini Hi-Fi Class D Integrated Amp - Image 4](https://m.media-amazon.com/images/I/71QDSFX1DbL.jpg)
![Fosi Audio 48V 5A Power Adapter Supply for Home Audio Bluetooth Stereo Receiver Amplifier Mini Hi-Fi Class D Integrated Amp - Image 5](https://m.media-amazon.com/images/I/71pxMpEaGlL.jpg)

## Questions & Answers

**Q: Will this work with Fosi Audio BL20A ?  Will it improve sound quality?**
A: Max voltage for the BL20A is 24V. This is the limit for the two TPA3116D2 chips, so I would not recommend a 32V power supply. Fosi Audio sells a 24V supply that might "improve" sound with respect to the amount headroom (large swings in volume) you can get without distortion but I doubt you could tell the difference at reasonable volumes.

**Q: What is better power supply to use for Fosi BL20a amp? 32v 5a or 24v 8a or 48v 5a?**
A: 48v

**Q: Bt30dpro is only rated to 36v5a does this supply really work for it? is there a 36/48v 10a version?**
A: I bought this power supply for the for the Fosi BT10D it will take up to a 48 volt power supply. My two other Fosi amps will only use a 32 volt power supply. So you must be careful to use the correct unit. Sadly I am not familiar with the BT30Dpro. If you go to the Fosi website they might have additional information. I am sorry I could not be more help.

**Q: did it improve bt20a pro quality? if yes which speaker type and watt do you use that make a difference?**
A: 48 V power supply improved sound with more clarity and wider soundstage. Speaker type is best at 8ohms.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice upgrade for even more clean power.
*by T***M on December 23, 2025*

Seems to be doing as expected! Very good value!

### ⭐⭐⭐⭐⭐ Good quality product, worked great. This is the required item for the AMPs full power output.
*by M***E on June 25, 2025*

These are the required power supply model to get the full benefit of the Amps output power potential. Produced a clean sound with no noise distortion. They work well, and I seem to be well made. With a power supply you don’t want the cheapest model, especially for fire hazard potential. Always make sure you get the correctly matched item.

### ⭐⭐⭐⭐⭐ Best Way To Get Full Power Output From Your Amp
*by M***R on February 11, 2026*

This is what you need if you want to get the most from your Fosi amps. IMPORTANT: make sure you particular amp is rated for the PS. Not all Fosi amps can take 48V.

## Frequently Bought Together

- Fosi Audio 48V 5A Power Adapter Supply for Home Audio Bluetooth Stereo Receiver Amplifier Mini Hi-Fi Class D Integrated Amp
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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-16*