---
product_id: 553223851
title: "48V 5A Power Adapter Supply for Home Audio Bluetooth Stereo Receiver Amplifier Mini Hi-Fi Class D Integrated Amp"
brand: "fosi audio"
price: "C$9546"
currency: NIO
in_stock: true
reviews_count: 5
category: "Fosi Audio"
url: https://www.desertcart.ni/products/553223851-48v-5a-power-adapter-supply-for-home-audio-bluetooth-stereo
store_origin: NI
region: Nicaragua
---

# 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:** C$9546
**Availability:** ✅ In Stock

## Summary

> 🔊 Power your vibe, never miss a beat!

## 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?** C$9546 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/553223851-48v-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 or office audio setup.
- • **Safety First, Always:** Integrated overcurrent and overvoltage protection keeps your gear safe and sound.
- • **Amp Up Without Limits:** Delivers a robust 5A current, perfect for high-demand audio setups and house parties.
- • **Power Your Sound Like a Pro:** 48V stable voltage ensures your amplifier performs at peak clarity and power.
- • **Built to Last, Built for You:** Crafted with premium materials for long-term durability and reliable performance.

## Overview

The Fosi Audio 48V 5A Power Adapter is engineered to deliver stable, high-current power specifically for Fosi Audio amplifiers like the BT20A Pro, TB10D, and V3. Its compact design and built-in safety features make it a reliable, durable choice for home, office, or industrial audio setups, ensuring your sound system performs flawlessly during every session.

## Description

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, and V3 amplifiers.

Review: I'm using this PSU instead of the 32V one supplied with the Fosi V3 amp. It works well, keeps the amp happy as it powers a pair of older Polk RT5 speakers. Those speakers are neither special, not particularly difficult to drive but their sensitivity is a little low for a pair of bookshelves so they need a bit of power to truly sing. I used this combo for a couple of smaller house parties and this combination was more than adequate to deliver the power needed without breaking a sweat. Recommended!
Review: This amplifier is a great way to pump up the sound thanks for the quick delivery

## 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, and V3 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 | #11,642 in Electronics ( See Top 100 in Electronics ) #59 in Audio & Video Adapters |
| Item model number | 48V |
| Manufacturer | Fosi Audio |
| Product Dimensions | 19.3 x 8.99 x 3.81 cm; 790 g |

## Product Details

- **Amperage:** 5 Amps
- **Brand:** Fosi Audio
- **Colour:** Black
- **Compatible devices:** Fosi Audio BT20A Pro, Fosi Audio TB10D, Fosi Audio V3 Amplifier
- **Connector type:** 2-Pin
- **Included components:** 1 cable
- **Input voltage:** 48 Volts
- **Special features:** Lightweight Design
- **Total USB ports:** 1
- **Wattage:** 36 watts

## 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

### ⭐⭐⭐⭐⭐ Review
*by B***U on 3 November 2024*

I'm using this PSU instead of the 32V one supplied with the Fosi V3 amp. It works well, keeps the amp happy as it powers a pair of older Polk RT5 speakers. Those speakers are neither special, not particularly difficult to drive but their sensitivity is a little low for a pair of bookshelves so they need a bit of power to truly sing. I used this combo for a couple of smaller house parties and this combination was more than adequate to deliver the power needed without breaking a sweat. Recommended!

### ⭐⭐⭐⭐⭐ Review
*by A***R on 16 January 2025*

This amplifier is a great way to pump up the sound thanks for the quick delivery

### ⭐⭐⭐⭐⭐ Review
*by G***R on 10 December 2025*

Wat een verbetering t.o.v. de meegeleverde voedingsadapter. Klank stukken beter, meer vermogen van de versterker. Geen ruis of vervorming, kan ganse dag spelen zonder oververhit te raken. Had dit gelezen op een forum over Fosi versterkers en vergelijkbare toestellen. Klinkt even goed als mijn Denon en Yamaha nu. Echt een super aanrader, een upgrade om U tegen te zeggen en dit voor een prijsje. Top.

## 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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**Shop now:** [https://www.desertcart.ni/products/553223851-48v-5a-power-adapter-supply-for-home-audio-bluetooth-stereo](https://www.desertcart.ni/products/553223851-48v-5a-power-adapter-supply-for-home-audio-bluetooth-stereo)

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-02-08*