---
product_id: 211471945
title: "Fosi Audio BT20A Bluetooth 5.0 Stereo Audio 2 Channel Amplifier Receiver Mini Hi-Fi Class D Integrated Amp 2.0 CH for Home Speakers 100W x 2 with Bass and Treble Control TPA3116 (with Power Supply)"
brand: "fosi audio"
price: "S$215"
currency: SGD
in_stock: true
reviews_count: 13
category: "Fosi Audio"
url: https://www.desertcart.sg/products/211471945-fosi-audio-bt20a-bluetooth-5-0-stereo-audio-2-channel
store_origin: SG
region: Singapore
---

# Bluetooth 5.0 with 50ft range 100W x 2 RMS power output Bass & Treble adjustable controls Fosi Audio BT20A Bluetooth 5.0 Stereo Audio 2 Channel Amplifier Receiver Mini Hi-Fi Class D Integrated Amp 2.0 CH for Home Speakers 100W x 2 with Bass and Treble Control TPA3116 (with Power Supply)

**Brand:** fosi audio
**Price:** S$215
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your sound game with compact power and wireless finesse!

## Quick Answers

- **What is this?** Fosi Audio BT20A Bluetooth 5.0 Stereo Audio 2 Channel Amplifier Receiver Mini Hi-Fi Class D Integrated Amp 2.0 CH for Home Speakers 100W x 2 with Bass and Treble Control TPA3116 (with Power Supply) by fosi audio
- **How much does it cost?** S$215 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/211471945-fosi-audio-bt20a-bluetooth-5-0-stereo-audio-2-channel)

## 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

- • **Plug & Play Confidence:** Includes 24V power supply and backed by a 24-month warranty—upgrade your audio setup worry-free.
- • **Tailor Your Soundscape:** Integrated bass and treble controls let you customize audio to match your vibe and space.
- • **Powerhouse in a Miniature:** Delivers crisp 100W x 2 stereo output to energize your home speakers with room-filling sound.
- • **Seamless Wireless Freedom:** Bluetooth 5.0 ensures stable, low-latency streaming up to 50 feet—ditch the cables, not the quality.
- • **Hi-Fi Precision Engineering:** Equipped with dual Texas Instruments TPA3116D2 chips for distortion-free, efficient Class D amplification.

## Overview

The Fosi Audio BT20A is a compact, high-performance Class D stereo amplifier featuring dual 100W RMS output channels, Bluetooth 5.0 wireless connectivity with up to 50ft range, and customizable bass and treble controls. Powered by Texas Instruments TPA3116D2 chips, it delivers efficient, low-distortion sound for passive home speakers. The package includes a 24V power supply and a 24-month warranty, making it a reliable upgrade for audiophiles seeking a sleek, modern amplifier solution.

## Description

Fosi Audio BT20A Bluetooth 5.0 Stereo Audio 2 Channel Amplifier Receiver Mini Hi-Fi Class D Integrated Amp 2.0 CH for Home Speakers 100W x 2 with Bass and Treble Control TPA3116 (with Power Supply) : desertcart.in: Electronics

Review: Works Good - I have been using this amplifier for a month now. It is working without any issues. The build quality of the amp as well as the adapter is very good. Looks tiny besides my old amp. My Old amp stopped working so am using this amplifier as an temporary alternative to power a set of Solidaire SS100 bookshelf speakers with a 12-inch woofer, a 4-inch midrange, and a 1-inch horn tweeter with impedance of 8 Ohms. Bluetooth range is also good. Comparable to my existing Logitech Bluetooth adapters. I have noticed it does not get warm on long usage when listening at acceptable volumes at home. The audio quality is flat and commendable in the Fosi amp, but I seem to miss the warmth my old Solidaire AS1200D amp provided. So, I tend to boost the lows and mids from the equalizer to get the desired effects. My decision on buying this over Aimyia amp was swayed because FOSI provide a warranty on their product, but Aimyia brand amps have no such mention in their listings.
Review: Excellent product - Best for stereo lovers

## Features

- Simple compact design but practical and powerful, little Hi-Fi Bluetooth wireless amplifier exclusively designed for the customers who pursue HiFi sound.
- Bluetooth 5.0 core, up to 50ft connection range guarantees low signal delay. No pop, no audible noise when Bluetooth connection is established.
- BT20A Bluetooth stereo receiver amplifier adopts 2PCS Texas Instruments TPA3116D2 chip. The TPA3116D2 are stereo efficient and digital amplifier power stage for driving speakers, with advanced oscillator/PLL circuit employs a multiple switching frequency option to avoid AM interferences.
- 100W RMS X 2(4 ohms, 20 Hz - 20 kHz, 0.04% THD), comes with a 24V power supply, can drive 280watts(8 ohms), 320watts(4 ohms) speakers.(for passive speakers only, not the powered speakers).
- What You Get: BT20A home integrated digital amplifier x1, 24V/4.5A power supply x1, user manual x1, our worry-free 24-month warranty, and friendly customer service: support@fosiaudio.com.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07BQC7GNL |
| Best Sellers Rank | #33,025 in Electronics ( See Top 100 in Electronics ) #42 in Hi-Fi Amplifiers |
| Box Contents | 1 electronic component amplifier |
| Brand Name | Fosi Audio |
| Country of Origin | China |
| Customer Reviews | 4.4 out of 5 stars 9,357 Reviews |
| Item Weight Unit of Measure | 567 Grams |
| Manufacturer | Fosi Audio |
| Manufacturer Part Number | BT20A |
| Model Number | BT20A |
| Number of Items | 1 |
| Unit Count | 1 Count |
| Warranty Description | no warranty available |

## Product Details

- **Item dimensions L x W x H:** 13.2 x 9 x 3.6 Centimeters
- **Manufacturer:** Fosi Audio
- **Maximum Supply Voltage:** 24 Volts
- **Minimum Supply Voltage:** 12 Volts
- **Voltage:** 230 Volts

## Images

![Fosi Audio BT20A Bluetooth 5.0 Stereo Audio 2 Channel Amplifier Receiver Mini Hi-Fi Class D Integrated Amp 2.0 CH for Home Speakers 100W x 2 with Bass and Treble Control TPA3116 (with Power Supply) - Image 1](https://m.media-amazon.com/images/I/61+cd+AMZcL.jpg)

## Questions & Answers

**Q: What is the power source? is there any built-in adopter for 230v ac to 12 v dc?**
A: Vendor is supplied 230V ac/24V dc adopter along with Amplifier. No need to buy separately

**Q: What is the power source? operating voltage 12v dc, is there any adopter to to operate from household ac line?**
A: Vendor is supplied 230V ac/24V dc adopter along with Amplifier. No need to buy separately

**Q: Is 80w and 6 ohms speak compatible with this amp?**
A: Yes. It can support 100w speaker on each channel.

**Q: 6 ohms spekaers can be connected with this amp?**
A: I have connected to Polk Audio Atrium 5 (8 Ohms) outdoor speakers.. I feel 6 ohm speaker should not be a problem , but might have issue with 4 ohms Speakers.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works Good
*by M***7 on 25 March 2024*

I have been using this amplifier for a month now. It is working without any issues. The build quality of the amp as well as the adapter is very good. Looks tiny besides my old amp. My Old amp stopped working so am using this amplifier as an temporary alternative to power a set of Solidaire SS100 bookshelf speakers with a 12-inch woofer, a 4-inch midrange, and a 1-inch horn tweeter with impedance of 8 Ohms. Bluetooth range is also good. Comparable to my existing Logitech Bluetooth adapters. I have noticed it does not get warm on long usage when listening at acceptable volumes at home. The audio quality is flat and commendable in the Fosi amp, but I seem to miss the warmth my old Solidaire AS1200D amp provided. So, I tend to boost the lows and mids from the equalizer to get the desired effects. My decision on buying this over Aimyia amp was swayed because FOSI provide a warranty on their product, but Aimyia brand amps have no such mention in their listings.

### ⭐⭐⭐⭐⭐ Excellent product
*by J***V on 5 August 2026*

Best for stereo lovers

### ⭐⭐⭐⭐ Amazing audio
*by T***J on 4 March 2026*

Its pretty good in sound quality and works well. I don't understand the part of loud noise from speaker for starting and switching off the device. Otherwise build quality, sound quality, packaging everything is very good.

## Frequently Bought Together

- Fosi Audio BT20A Bluetooth Stereo Amplifier, 2 Channel Home Audio Component Amplifiers for Passive Speakers, Mini Class D Amp Receiver 200W for Indoor/Outdoor/Garage/Ceiling/Bookshelf Speaker
- Banana Plugs with Dual Set Screws,Black and Red Aluminum Shell,6 Pairs
- Amazon Basics Speaker Cable, Easy Assembly, 16-Gauge, Bronze, 100 ft

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-08-18*