---
product_id: 530911742
title: "48V 5A Power Adapter Supply for Home Audio Bluetooth Stereo Receiver Amplifier Mini Hi-Fi Class D Integrated Amp"
brand: "fosi audio"
price: "€ 126.87"
currency: EUR
in_stock: true
reviews_count: 13
category: "Fosi Audio"
url: https://www.desertcart.hr/products/530911742-48v-5a-power-adapter-supply-for-home-audio-bluetooth-stereo
store_origin: HR
region: Croatia
---

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

**Brand:** fosi audio
**Price:** € 126.87
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your audio dreams with precision and safety!

## Quick Answers

- **What is this?** 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?** € 126.87 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/530911742-48v-5a-power-adapter-supply-for-home-audio-bluetooth-stereo)

## 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:** Sleek, lightweight design fits effortlessly into any home, office, or studio setup without clutter.
- • **Safety First, Always:** Integrated overcurrent and overvoltage protection keeps your gear—and your space—safe and sound.
- • **Amp Up Without Limits:** Delivers a robust 5A current, perfect for high-power audio setups craving clean, distortion-free sound.
- • **Power Your Sound Like a Pro:** 48V stable voltage ensures your amplifier hits peak performance without compromise.
- • **Built to Last, Built for You:** Premium materials and a 24-month warranty mean reliability that keeps pace with your passion.

## Overview

The Fosi Audio 48V 5A Power Adapter is engineered to deliver a stable 48V output and up to 5 amps of current, ideal for powering Fosi Audio amplifiers like BT20A Pro and ZA3. Its compact design and robust safety features, including overcurrent and overvoltage protection, ensure reliable, high-performance operation in any environment. Backed by premium materials and a 24-month warranty, this adapter guarantees clean, distortion-free sound and peace of mind for audiophiles and professionals alike.

## 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: 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.
Review: Best Way To Get Full Power Output From Your Amp - 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.

## 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 |
| Amperage | 5 Amps |
| Best Sellers Rank | #22,096 in Electronics ( See Top 100 in Electronics ) #113 in Audio Component Amplifiers |
| Brand | Fosi Audio |
| Built-In Media | 1 x AC Adapter |
| Color | Black |
| Connector Type | Barrel Connector |
| Connector Type Used on Cable | Barrel Connector |
| Customer Reviews | 4.5 out of 5 stars 440 Reviews |
| Enclosure Material | Plastic |
| Form Factor | Compact |
| Input Voltage | 48 Volts |
| Item Dimensions | 7.6 x 3.54 x 1.5 inches |
| Item Weight | 0.79 Kilograms |
| Manufacturer | Fosi Audio |
| Material | Plastic |
| Maximum Power | 240 Watts |
| Mfr Part Number | 48V電源 |
| Model Number | 48V |
| Output Current | 5 Amps |
| Output Voltage | 48 Volts |
| Output Wattage | 240 Watts |
| Specification Met | CE |
| Unit Count | 1.0 Ounce |
| Warranty Description | 24 Month Manufacturer |

## Product Details

- **Brand:** Fosi Audio
- **Color:** Black
- **Connector Type:** Barrel Connector
- **Item Weight:** 0.79 Kilograms
- **Material:** Plastic

## Images

![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)

## 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

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ Good Power Supply
*by W***E on August 20, 2025*

It works fine but I didn;t notice much difference in performance of my Fosi BT Amp. I was hoping I would get a little more power out of my amp but it is only marginally louder. It is as distortion free as any amp I have had, I think it is a great littl amp.

## 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 Croatia*
*Store origin: HR*
*Last updated: 2026-07-06*