---
product_id: 322368103
title: "BT20A Pro 300W x2 TPA3255 Bluetooth 5.0 Home Audio Stereo 2 Channel Amplifier Receiver Mini Hi-Fi Class D Upgraded Integrated Amp for Speakers with Bass Treble Control"
brand: "fosi audio"
price: "R$88"
currency: BRL
in_stock: true
reviews_count: 12
category: "Fosi Audio"
url: https://www.desertcart.com.br/products/322368103-bt20a-pro-300w-x2-tpa3255-bluetooth-5-0-home-audio
store_origin: BR
region: Brazil
---

# 300W x2 Power Output Bluetooth 5.0 Connectivity Bass & Treble Control BT20A Pro 300W x2 TPA3255 Bluetooth 5.0 Home Audio Stereo 2 Channel Amplifier Receiver Mini Hi-Fi Class D Upgraded Integrated Amp for Speakers with Bass Treble Control

**Brand:** fosi audio
**Price:** R$88
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your sound game — don’t just listen, experience every beat!

## Quick Answers

- **What is this?** BT20A Pro 300W x2 TPA3255 Bluetooth 5.0 Home Audio Stereo 2 Channel Amplifier Receiver Mini Hi-Fi Class D Upgraded Integrated Amp for Speakers with Bass Treble Control by fosi audio
- **How much does it cost?** R$88 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/322368103-bt20a-pro-300w-x2-tpa3255-bluetooth-5-0-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 Yet Mighty:** Sleek mini Hi-Fi Class D design fits any modern workspace or living room without compromising power.
- • **Powerhouse Performance:** Dual 300W output driven by TI TPA3255 chip for crystal-clear, high-efficiency sound with ultra-low idle power consumption.
- • **Seamless Bluetooth 5.0:** Next-gen wireless pairing with memory function and easy reset for uninterrupted, high-fidelity streaming.
- • **Customizable Soundscape:** Precision bass and treble controls let you tailor your audio vibe or enjoy pure, unaltered sound.
- • **Audiophile-Grade Op-Amp Flexibility:** Swap NE5532 Op-Amps with premium alternatives to craft your signature sound profile.

## Overview

The Fosi Audio BT20A Pro is a compact, high-efficiency Class D stereo amplifier delivering 300W per channel via the advanced TI TPA3255 chip. Featuring Bluetooth 5.0 with memory pairing, customizable bass and treble controls, and replaceable Op-Amps for personalized sound tuning, it’s engineered for audiophiles seeking powerful, pristine audio in a sleek, space-saving design.

## Description

Buy Fosi Audio BT20A Pro 300W x2 TPA3255 Bluetooth 5.0 Home Audio Stereo 2 Channel Amplifier Receiver Mini Hi-Fi Class D Upgraded Integrated Amp for Speakers with Bass Treble Control online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

Review: One of the best no-nonsense amps for music lovers/audiophiles with small to medium sized rooms… - I needed to gift a stereo system and I really didn’t need to think about which amp I’d pick up. It was almost a given. The Fosi, suffice to say, didn’t disappoint even when paired with speakers I originally didn’t mean to buy (I was looking for the Klipsch RP400M but couldn’t find them anywhere). And once I set the system up, the BT20A simply rose to the occasion, bad room dimensions and all. My only niggle, the volume increase is not linear. Turning up the knob doesn’t do much until about 25% up and then at 60% begins to amplify the sound exponentially. And it also does not have the resistive/expensive feel of the volume knob on the BT10A that I use as a personal desktop system
Review: I am flattered by the sound quality and the tempting price. - Awesome product with superb sound quality. This can beat the amplifiers costs more than 10 times of its cost. I was not so confident to buy a class D amp as i always felt that class D amps lacks musicality. But this one made me a fan a Fosi audio. I am ordering P3 preamp now and wish to to try the ZA3 model too. Kudos to fosi audio for bringing quality products for affordable price. I am following fosi audio for new releases and their models will always have a place in my youtube channel techavmallu as reviews and ownership experience.

## Features

- 300 Watts x2 Power Output: Provided by the TI TPA3255 chip which features an advanced feedback design and proprietary high-speed gate driver error correction. In addition to excellent audio performance, TPA3255 achieves both high power efficiency and very low power stage idle losses below 2.5W.
- High Efficiency: A significant upgrade from the BT20A amplifier. There're two plug-ins NE5532 Op-Amps can be replaced by LME49720HA/MUSES02/OPA26041P/OPA2134PA/LM4562/NJM4556AD Op-Amps etc. To create a different sound quality. SNR≥108dB; THD≤0.005%.
- Upgraded Bluetooth 5.0 connectivity: By pressing and holding the volume control for five seconds, the Bluetooth pair can be cleared. In addition, it has a Bluetooth memory function, so it can be easily paired the next time. It also receives an alert tone.
- Sound Control: With its unique design, the BT20A Pro amplifier for home audio has a wide range of bass and treble controls. Alternatively, you can turn the treble and bass effects to a middle point to listen to the original sound without effects.
- What you Get: BT20A Pro Power Amplifier x1, Bluetooth Antenna x1, Spare Volume Knob x1, 32V 5A Power Adapter x1, AC Cord x1, User Manual x1, our worry-free 24-month warranty, and friendly customer service.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07JVFY27T |
| Best Sellers Rank | #2,730 in Electronics ( See Top 100 in Electronics ) #1 in Home Audio Amplifiers |
| Item model number | BT20A PRO |
| Language | English |
| Manufacturer | Fosi Audio |
| Product Dimensions | 14.2 x 10.7 x 0.41 cm; 1.1 kg |

## Product Details

- **Item dimensions L x W x H:** 14.2 x 10.7 x 0.4 centimeters
- **Manufacturer:** Fosi Audio
- **Maximum supply voltage:** 32 Volts (DC)
- **Minimum supply voltage:** 32 Volts (DC)
- **Voltage:** 32 Volts

## Images

![BT20A Pro 300W x2 TPA3255 Bluetooth 5.0 Home Audio Stereo 2 Channel Amplifier Receiver Mini Hi-Fi Class D Upgraded Integrated Amp for Speakers with Bass Treble Control - Image 1](https://m.media-amazon.com/images/I/61ne1lo34ML.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ One of the best no-nonsense amps for music lovers/audiophiles with small to medium sized rooms…
*by S***E on 22 July 2024*

I needed to gift a stereo system and I really didn’t need to think about which amp I’d pick up. It was almost a given. The Fosi, suffice to say, didn’t disappoint even when paired with speakers I originally didn’t mean to buy (I was looking for the Klipsch RP400M but couldn’t find them anywhere). And once I set the system up, the BT20A simply rose to the occasion, bad room dimensions and all. My only niggle, the volume increase is not linear. Turning up the knob doesn’t do much until about 25% up and then at 60% begins to amplify the sound exponentially. And it also does not have the resistive/expensive feel of the volume knob on the BT10A that I use as a personal desktop system

### ⭐⭐⭐⭐⭐ I am flattered by the sound quality and the tempting price.
*by S***. on 24 July 2024*

Awesome product with superb sound quality. This can beat the amplifiers costs more than 10 times of its cost. I was not so confident to buy a class D amp as i always felt that class D amps lacks musicality. But this one made me a fan a Fosi audio. I am ordering P3 preamp now and wish to to try the ZA3 model too. Kudos to fosi audio for bringing quality products for affordable price. I am following fosi audio for new releases and their models will always have a place in my youtube channel techavmallu as reviews and ownership experience.

### ⭐⭐⭐⭐⭐ Great mini audiophile
*by J***D on 14 July 2025*

Delivers Great sound.

## Frequently Bought Together

- Fosi Audio BT20A Pro Bluetooth 5.0 Amplifier, 300W x2 Wireless Amp, TPA3255 2 Channel Mini Class D Integrated Home Audio Outdoor Stereo Receiver with Bass Treble Control for Passive Speakers
- 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 Brazil*
*Store origin: BR*
*Last updated: 2026-01-26*