---
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: "3723147₫"
currency: VND
in_stock: true
reviews_count: 8
category: "Fosi Audio"
url: https://www.desertcart.vn/products/530911742-fosi-audio-48v-5a-power-adapter-supply-for-home-audio
store_origin: VN
region: Vietnam
---

# 48V stable output 5A high current delivery 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:** 3723147₫
**Availability:** ✅ In Stock

## Summary

> 🔊 Power your passion with precision and safety!

## 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?** 3723147₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/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 effortlessly into any home or office audio setup, no clutter, just power.
- • **Trusted Durability:** Crafted with premium materials and backed by a 24-month warranty—because your sound deserves reliability.
- • **Safety First, Always:** Integrated overcurrent and overvoltage protection keeps your gear safe and your mind at ease.
- • **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 output ensures your amplifier hits peak performance without compromise.

## Overview

The Fosi Audio 48V 5A Power Adapter is engineered to deliver stable, high-current power tailored for Fosi Audio amplifiers like BT20A Pro and TB10D. Its compact, lightweight design combined with advanced safety features ensures reliable, distortion-free audio performance in any setting, backed by premium build quality and a 24-month warranty.

## 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: Boosts the power for my Fosi Audio TB 10D amp and makes it sound better. - I bought the Fosi Audio TB10D power amp (Improved version) and was pretty happy with it but it needed more power to handle certain type of music. For $60 (price when I bought it, including discount coupon) I couldn't complain. As soon as I heard Fosi made a more powerful power supply I jumped at the chance to buy one. It arrived the next day. I was a little surprised to see it was nearly the size of the amp. I plugged it in. I put on some music, Classical, Rock, Pop, Jazz, and more and found the amp sounded better than ever! Total price is still a steal for what you get.

## 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 |
| Additional Features | Lightweight Design |
| Amperage | 5 Amps |
| Best Sellers Rank | #24,650 in Electronics ( See Top 100 in Electronics ) #106 in Audio Component Amplifiers |
| Brand | Fosi Audio |
| Built-In Media | 1 x AC Adapter |
| Color | Black |
| Compatible Devices | Amplifiers |
| Connectivity Technology | Bluetooth |
| Connector Type | Barrel Connector |
| Current Rating | 5 Amps |
| Customer Package Type | Reinforced Packaging" or "Shock-Resistant Packaging |
| Customer Reviews | 4.6 out of 5 stars 390 Reviews |
| Enclosure Material | Plastic |
| Input Voltage | 48 Volts |
| Item Height | 1.5 inches |
| Item Weight | 0.79 Kilograms |
| Main Power Connector Type | 2 Pin |
| Manufacturer | Fosi Audio |
| Model Number | 48V |
| Mounting Type | Wall Mount |
| Number of Items | 1 |
| Number of Power Levels | 1 |
| Output Current | 5 Amps |
| Output Voltage | 48 Volts |
| Portable | Yes |
| Power Plug | Type A - 2 pin (North American) |
| Power Source | AC |
| Specification Met | CE |
| Total Usb Ports | 1 |
| Unit Count | 1.0 Ounce |
| Warranty Description | 24 Month Manufacturer |
| Wattage | 36 watts |

## Product Details

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

## 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.

### ⭐⭐⭐⭐⭐ Boosts the power for my Fosi Audio TB 10D amp and makes it sound better.
*by R***. on June 16, 2023*

I bought the Fosi Audio TB10D power amp (Improved version) and was pretty happy with it but it needed more power to handle certain type of music. For $60 (price when I bought it, including discount coupon) I couldn't complain. As soon as I heard Fosi made a more powerful power supply I jumped at the chance to buy one. It arrived the next day. I was a little surprised to see it was nearly the size of the amp. I plugged it in. I put on some music, Classical, Rock, Pop, Jazz, and more and found the amp sounded better than ever! Total price is still a steal for what you get.

### ⭐⭐⭐⭐⭐ 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 Vietnam*
*Store origin: VN*
*Last updated: 2026-01-23*