---
product_id: 157629410
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: "€ 277.93"
currency: EUR
in_stock: true
reviews_count: 10
category: "Fosi Audio"
url: https://www.desertcart.hr/products/157629410-bt20a-pro-300w-x2-tpa3255-bluetooth-5-0-home-audio
store_origin: HR
region: Croatia
---

# 600W total power output Bluetooth 5.0 seamless pairing Customizable 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:** € 277.93
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your audio game with power, precision, and style!

## 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?** € 277.93 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/157629410-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

- • **Tailor Your Sound:** Interchangeable Op-Amps and precise bass/treble controls let you craft your perfect audio signature.
- • **Compact Yet Mighty:** Sleek mini design fits any workspace or living room without sacrificing power.
- • **Next-Gen Connectivity:** Bluetooth 5.0 ensures stable, lag-free streaming with easy device memory pairing.
- • **Powerhouse Performance:** Dual 300W channels deliver room-filling sound with crystal clarity.
- • **Plug & Play Convenience:** Includes all essentials plus a 24-month warranty for worry-free listening.

## Overview

The Fosi Audio BT20A Pro is a compact, high-efficiency Class D amplifier featuring dual 300W output channels powered by the TI TPA3255 chip. It offers advanced Bluetooth 5.0 connectivity with memory pairing, customizable sound via replaceable Op-Amps, and manual bass/treble controls. Designed for audiophiles and casual listeners alike, it delivers premium sound quality in a sleek, space-saving form factor backed by a 2-year warranty.

## Description

Experience exceptional sound with this Bluetooth amplifier's 300W x2 power, customizable options, and interchangeable op-amps for a tailored listening experience.

Review: Incredible! - Incredible product, the sound quality is great over Bluetooth and the range is unbelievable. There’s also very little delay in the playback, so watching videos are no issue with the audio syncing nicely. The whole unit is so small which was very important for my space, yet performs well. I’m not an audiophile but I can definitely say the average consumer would be thrilled by the output, and not to mention the value for money over the competition.
Review: Great power, lovely device - I love this thing, and can't believe how loud it is! So one thing to mention is that you can't get the full 300w of power with the supplied power supply (32v) - they sell a 48v one I think on desertcart if you need that. Yet, the room I am in is 5m by 3.5m, and I don't think I'll ever push the thing past 1/2 way. Most of the time, considerably less than that. So the above does not bother me. It is powering some Cambridge Audio SX-50, and collectively they sound amazing! I briefly had some Edifier active speakers before this (cheaper, but not by that much), but sound comparison wise, there's no contest. So this is a pretty simple device - no remote, and not a lot going on controls wise, but having the two inputs (one physical, and the other bluetooth) is perfect for my needs. And the manual treble and bass are useful at times too. I've not got a sub plugged into this - for my needs, I don't think I need it (the speakers are pretty good without), so can't comment on that, but may add something in the future, so good to have the option. I'm using this for armature music production, and also for listening to music as I work, and its great for both!

## Features

- TI TPA3255 Chip Amplifier with 300 Watts x 2 Power Output: Advanced feedback design and high-speed gate driver error correction for efficient and high-quality audio performance, with low idle losses of <2.5W.
- Upgraded High-Efficiency: A significant upgrade from the BT20A amplifier with replaceable Op-Amps for customized. You can replace the two plug-in NE5532 Op-Amps with LME49720HA/MUSES02/OPA2604AP/OPA2134PA/LM4562/NJM4556AD Op-Amps to achieve a unique sound quality. With SNR≥108dB and THD≤0.005%.
- Enhanced Bluetooth 5.0 Connectivity: The Bluetooth pair can be cleared by pressing and holding the volume control for five seconds. In addition, it has a memory Function for Easy Pairing and Alert Tone.
- Customizable Sound with a Wide Range of Bass and Treble Controls: The BT20A Pro home audio amplifier offers a unique design for sound control. Enjoy original sound without effects by setting treble and bass effects to the middle point.
- What you Get: BT20A Pro Power Amplifier x1, Bluetooth Antenna 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 | 2,209 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 2 in Hi-Fi Amplifiers |
| Brand | Fosi Audio |
| Country Of Origin | China |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,584) |
| Included Components | Bluetooth Antenna x1, 32V 5A Power Supply x1 |
| Item Dimensions | 14.2 x 10.7 x 0.4 centimetres |
| Item Weight | 547 Grams |
| Manufacturer | Fosi Audio |
| Maximum Supply Voltage | 32 Volts (DC) |
| Minimum Supply Voltage | 32 Volts |
| Model Number | BT20A PRO |
| Mounting Type | Surface Mount |
| Number of Channels | 2 |
| Output Power | 300 Watts |
| Package Type Name | box |
| Product Warranty | 2 years |
| Specification Met | CE |
| Supply Current | 5 Amps |
| Unit Count | 1.0 count |
| Voltage | 32 Volts |

## Product Details

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

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Will you be making the bt20a pro available on amazon with the 48v power supply?**
A: Hi, BT20A Pro is available with the 48v power supply.

**Q: Is amp a similar quality to the tangent ampster btii?**
A: Yes,or better,think this is the best sub £100 BY amplifier on the market,has input for cd or turntable and a sub woofer out,great item

**Q: How do you switch between bluetooth and RCA inputs if there's no selector switch?**
A: Push the volume knob, however this amp auto defaults to Bluetooth if you have the source bluetooth switched on. So to select RCA connection turn Bluetooth off on the source.

**Q: Does it come with a power supply?**
A: Yes, almost half of the size of the amp itself

## Customer Reviews

### ⭐⭐⭐⭐⭐ Incredible!
*by L***M on 7 September 2025*

Incredible product, the sound quality is great over Bluetooth and the range is unbelievable. There’s also very little delay in the playback, so watching videos are no issue with the audio syncing nicely. The whole unit is so small which was very important for my space, yet performs well. I’m not an audiophile but I can definitely say the average consumer would be thrilled by the output, and not to mention the value for money over the competition.

### ⭐⭐⭐⭐⭐ Great power, lovely device
*by R***K on 5 October 2025*

I love this thing, and can't believe how loud it is! So one thing to mention is that you can't get the full 300w of power with the supplied power supply (32v) - they sell a 48v one I think on Amazon if you need that. Yet, the room I am in is 5m by 3.5m, and I don't think I'll ever push the thing past 1/2 way. Most of the time, considerably less than that. So the above does not bother me. It is powering some Cambridge Audio SX-50, and collectively they sound amazing! I briefly had some Edifier active speakers before this (cheaper, but not by that much), but sound comparison wise, there's no contest. So this is a pretty simple device - no remote, and not a lot going on controls wise, but having the two inputs (one physical, and the other bluetooth) is perfect for my needs. And the manual treble and bass are useful at times too. I've not got a sub plugged into this - for my needs, I don't think I need it (the speakers are pretty good without), so can't comment on that, but may add something in the future, so good to have the option. I'm using this for armature music production, and also for listening to music as I work, and its great for both!

### ⭐⭐⭐⭐⭐ Brilliant Budget Audio
*by M***E on 1 December 2024*

Having had a few different hifi setups in my time, I am pleasantly surprised by this latest purchase. I'll list some pros and cons and then give a bit more information about this Fosi Audio amplifier. Pros: - Size: I have a Denon amplifier and Mission bookshelf speakers. The Denon amplifier is amazing, but it's large and I haven't had enough space to put the amp and speakers together on a surface. It's probably the main reason I bought this product. It means I can still use my lovely mission speakers, and the speakers and Fosi amp all fit on a surface I have free. - Sound: If you are getting this, having never had a proper amp+speakers hifi setup, it's probably going to blow you away. The sound quality is very impressive for such a small unit. Having the treble and bass controls are a nice touch. Pair this little amp with some decent speakers and you'll be happy. For the price and considering the size, it's wonderful. - Bluetooth: Nowadays, for the sake of convenience, I use Bluetooth for my music often. Music does sound very good simply streamed from my phone through Bluetooth to the Fosi unit. There is an RCA out for any peripherals (such as a turntable or cd player etc). I haven't had any issues using the Bluetooth. -Build: The unit is made of metal. I've read some reviews mentioning the switches felt cheap or loose....maybe I'm lucky, but mine is fine. Great build quality and sturdy controls and ports. Cons: I can't really think of any. My Denon amp is a fair bit better than this unit in terms of sound and power output, but buying a new amp similar to my Denon unit would cost in excess of £300. And there isn't exactly a huge difference between them. This amplifier got my wonderful Mission speakers back into action and since I've had the amplifier, it's made listening to music really exciting again. I'd say it's good enough for bedrooms or small living rooms. If the room you have it in is particularly big, you may need something a little more powerful. Having a remote control would have been a nice addition. Ultimately, im really impressed with this. It's a quality audio product for not much money. Pair it with some quality speakers and you won't be disappointed.

## 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 Croatia*
*Store origin: HR*
*Last updated: 2026-04-25*