---
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: "฿11613"
currency: THB
in_stock: true
reviews_count: 13
category: "Fosi Audio"
url: https://www.desertcart.co.th/products/211471945-fosi-audio-bt20a-bluetooth-5-0-stereo-audio-2-channel
store_origin: TH
region: Thailand
---

# Bluetooth 5.0 with 50ft range 200W stereo power output Bass & Treble control 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:** ฿11613
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your home audio game with compact power and wireless freedom!

## 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?** ฿11613 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/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

- • **Compact Powerhouse:** Sleek mini design packs 100W x 2 RMS for room-filling sound without the bulk.
- • **Ready Out of the Box:** Includes 24V power supply and 24-month warranty—plug in, power up, and play worry-free.
- • **Precision Audio Tuning:** Customizable bass and treble controls let you craft your perfect sound signature.
- • **Hi-Fi Class D Efficiency:** Advanced TPA3116 chip delivers crystal-clear audio with minimal distortion and zero pop noise.
- • **Seamless Wireless Streaming:** Bluetooth 5.0 ensures ultra-stable connection up to 50 feet—ditch the wires, not the quality.

## Overview

The Fosi Audio BT20A is a compact, high-efficiency Class D stereo amplifier delivering 200W total power (100W per channel) with Bluetooth 5.0 connectivity for wireless streaming up to 50 feet. Featuring advanced Texas Instruments TPA3116D2 chips, it offers low distortion, no audible pop noise, and customizable bass and treble controls. Designed for passive home speakers, it comes with a 24V power supply and a 24-month warranty, making it a reliable, space-saving upgrade for audiophiles seeking Hi-Fi sound without compromise.

## 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: Small on size big on sound. - Too tiny, infact the provided adapter brick is larger. Felt little warm after couple of hours of usage. Hopefully it will last for years to come. Have hooked my LG FB162 System speakers and the sound coming out is good. Even at low volume can get clarity. Bluetooth works like charm even when I take the source device in a different room still sound doesn't distort. Wish they have provided a remote or an app to control Bass and Treble.

## 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 |
| Audio Output Type | Speakers |
| Audio Wattage | 200 Watts |
| Audio output mode | Stereo |
| Batteries Included | No |
| Batteries Required | No |
| Best Sellers Rank | #44,885 in Electronics ( See Top 100 in Electronics ) #65 in Hi-Fi Amplifiers |
| Brand | Fosi Audio |
| Colour Screen | No |
| Compatible Devices | Speaker |
| Connector Type | Bluetooth |
| Country of Origin | China |
| Customer Reviews | 4.4 4.4 out of 5 stars (8,967) |
| Date First Available | 22 May 2018 |
| Includes Rechargeable Battery | No |
| Includes remote | No |
| Item Dimensions LxWxH | 13.2 x 9 x 3.6 Centimeters |
| Item Weight | 680 g |
| Item dimensions L x W x H | 13.2 x 9 x 3.6 Centimeters |
| Item model number | BT20A |
| Manufacturer | Fosi Audio |
| Maximum Supply Voltage | 24 Volts |
| Minimum Supply Voltage | 12 Volts |
| Model | BT20A |
| Mounting Hardware | 1 electronic component amplifier |
| Mounting Type | Surface Mount |
| Number of Channels | 2 |
| Number of items | 1 |
| Output Power | 200 Watts |
| Product Dimensions | 13.21 x 8.99 x 3.61 cm; 680.39 g |
| Signal-to-noise ratio (dB) | 98 dB |
| Speaker Output Channel Quantity | 2 |
| Special Features | Built In Bluetooth, RCA |
| Specification Met | Meets Specifications |
| Tuner Technology | AM |
| Voltage | 230 Volts |
| Wattage | 200 Watts |
| Wireless Type | Bluetooth |

## 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.

### ⭐⭐⭐⭐⭐ Small on size big on sound.
*by @***! on 30 May 2025*

Too tiny, infact the provided adapter brick is larger. Felt little warm after couple of hours of usage. Hopefully it will last for years to come. Have hooked my LG FB162 System speakers and the sound coming out is good. Even at low volume can get clarity. Bluetooth works like charm even when I take the source device in a different room still sound doesn't distort. Wish they have provided a remote or an app to control Bass and Treble.

### ⭐⭐⭐⭐ Fantastic item for bluetooth
*by S***G on 26 October 2023*

Being a Class D amplifier it is very compact in size, more so as the power supply is separated out by way of an adapter. The digital input (bluetooth etc) sounds great, if reasonably good speakers are used. However when analog input is there, the sound quality goes down remarkably. Therefore if the requirement is to use it with LED TV or record player (aux input), as in my case, better to go for Class AB amplifier for wholesome sound. That's why one star less.

## 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 Thailand*
*Store origin: TH*
*Last updated: 2026-01-24*