---
product_id: 85729159
title: "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"
brand: "fosi audio"
price: "KD 52.20"
currency: KWD
in_stock: true
reviews_count: 9
category: "Fosi Audio"
url: https://www.desertcart.com.kw/products/85729159-fosi-audio-bt20a-pro-bluetooth-5-0-amplifier-300w-x2
store_origin: KW
region: Kuwait
---

# Bluetooth 5.0 wireless range 600W total power output Custom bass & treble control 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

**Brand:** fosi audio
**Price:** KD 52.20
**Availability:** ✅ In Stock

## Summary

> 🎧 Small Amp, Big Vibes: Elevate your sound game anywhere, anytime.

## Quick Answers

- **What is this?** 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 by fosi audio
- **How much does it cost?** KD 52.20 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/85729159-fosi-audio-bt20a-pro-bluetooth-5-0-amplifier-300w-x2)

## 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 Simplicity:** No proprietary cables or complex setup—just connect speakers, power, and Bluetooth for instant audio bliss.
- • **Tailor Your Soundscape:** Adjust bass and treble knobs for a personalized audio experience that fits your vibe.
- • **Audiophile-Grade TPA3255 Chip:** High-efficiency Class D amplifier with ultra-low distortion (THD ≤ 0.005%) for crystal-clear sound.
- • **Powerhouse Punch in a Mini Frame:** 300W x2 channels deliver room-filling sound without the bulk.
- • **Seamless Bluetooth 5.0 Connectivity:** Effortless pairing with extended range keeps your playlist flowing outdoors.

## Overview

The Fosi Audio BT20A Pro is a compact yet powerful Class D amplifier featuring dual 300W output channels powered by the TI TPA3255 chip. It offers Bluetooth 5.0 wireless connectivity with fast pairing and extended range, plus customizable bass and treble controls for tailored sound. Designed for easy installation with standard speaker terminals and a sleek metal build, it’s the perfect upgrade for home or outdoor audio setups seeking high-fidelity sound without the bulk.

## Description

Buy 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: Amplifiers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Shockingly Good Little Amp — Perfect Drop-In Replacement for an Outdoor BBQ-Island Setup - I bought this little gray superhero after my previous “mystery box” amplifier (buried deep inside my outdoor BBQ island like some kind of archaeological artifact) decided to cut in and out every time I turned the music up past “mellow backyard vibes.” Nothing kills a good afternoon faster than your speakers crackling like they’re coughing up dust. 📦 First Impressions This thing is tiny. Like “did they ship me the right item?” tiny. But don’t let the size fool you — it punches like a heavyweight. Bluetooth range? Strong. Power? More than enough to drive the 6.5” Aquatic AV outdoor speakers I already had wired in. 🔧 Installation (AKA: How I Crawled Into My BBQ Island and Survived) My previous setup looked like NASA mission control. Wires, harnesses, proprietary connectors, and something pretending to be a subwoofer box. The Fosi made the whole thing simple: • Speaker wire → into left & right terminals • Power adapter → plug • Bluetooth → connect • Music → immediate happiness No proprietary weirdness. No random 4-pin blue plug. No tears. 🎵 Sound Quality Compared to my old Aquatic AV amp, which acted like it had seasonal allergies, the BT20A Pro is clean, strong, and shockingly loud for its size. • Bass is smooth (especially with your speakers’ built-in low-end) • Highs are crisp • Mids are clean • And the bass/treble knobs actually do something instead of just pretending Honestly, for a backyard setup that sits in a protected cabinet, this little thing is the perfect “sweet spot.” 📡 Bluetooth Fast pairing. Zero drama. I walked almost to the front yard before it even hinted at disconnecting — which, for anyone with an outdoor entertainment setup, is basically sorcery. 🔥 The Verdict If you want: ✔ A simple, clean replacement for a dead factory amp ✔ Power that actually moves your outdoor speakers ✔ Bluetooth that doesn’t quit ✔ A device that you can install without needing an engineering degree ✔ Something small enough to hide anywhere …then this is exactly the amp you want. 😂 Bonus Humor Section My old amp weighed 10 pounds and sounded like it had asthma. This Fosi weighs nothing, and sounds like it drinks pre-workout. ⸻ ⭐ Bottom Line: For the price, size, and performance, this little amp is the MVP of my backyard. If Fosi ever makes a “Pro Plus Ultra Nuclear Edition,” I’ll be first in line — but until then, this thing is staying right where it is, working flawlessly while I grill, chill, and pretend I’m an audio engineer.
Review: Great Little Integrated Amp! - Great Little Integrated Amp! Very well made of all metal. Easy to assemble and set up. Bluetooth was easy to connect and works great. This little amp has lots of power and sounds great. Runs warm but not hot. A great inexpensive alternative to large, more expensive integrated amps.

## Features

- 300 Watts x 2 Power Output: The TI TPA3255 chip amplifier has a feedback design and high-speed gate driver error connection for efficient and quality audio performance, with a low idle loss of <2.5W
- High-Efficiency: The chip amplifier has replaceable Op-Amps for a custom approach when compared to the BT20A amplifier. Further, you can swap the 2 plug-in NE5532 Op-Amps for LME49720HA, MUSES02, OPA2604AP, OPA2134PA, LM4562, or NJM4556AD Op-Amps to achieve distinct sound qualities. It boasts an SNR≥108dB and THD≤0.005%
- Bluetooth 5.0 Connectivity: The Bluetooth pair can be removed by pressing and holding the volume control for 5 seconds, and it also has a memory function for easy pairing and an alert tone for convenience
- Custom Sound with Bass and Treble Controls: The BT20A Pro home audio amplifier has a sound control design so that you can experience sound without effects by setting treble and bass effects to the middle point
- Package Contents: The package contains a BT20A Pro power amplifier, a Bluetooth antenna, a 32V/5A power adapter, an AC cord, and a user manual

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07JVFY27T |
| Best Sellers Rank | #2,652 in Electronics ( See Top 100 in Electronics ) #5 in Audio Component Amplifiers |
| Brand | Fosi Audio |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,531) |
| Date First Available | December 22, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.42 pounds |
| Item dimensions L x W x H | 5.59 x 4.21 x 0.16 inches |
| Item model number | BT20A PRO |
| Language | English |
| Manufacturer | Fosi Audio |
| Maximum Supply Voltage | 32 Volts (DC) |
| Minimum Supply Voltage | 32 Volts (DC) |
| Mounting Type | Surface Mount |
| Number of Channels | 2 |
| Output Power | 300 Watts |
| Package Type Name | box |
| Product Dimensions | 5.59 x 4.21 x 0.16 inches |
| Specification Met | [If Interpreted as Technical Specifications]: Bluetooth 5.0 |
| Voltage | 32 Volts |

## Product Details

- **Item dimensions L x W x H:** 5.59 x 4.21 x 0.16 inches
- **Manufacturer:** Fosi Audio
- **Maximum Supply Voltage:** 32 Volts (DC)
- **Minimum Supply Voltage:** 32 Volts (DC)
- **Voltage:** 32 Volts

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/61ne1lo34ML.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Shockingly Good Little Amp — Perfect Drop-In Replacement for an Outdoor BBQ-Island Setup
*by K***Y on December 8, 2025*

I bought this little gray superhero after my previous “mystery box” amplifier (buried deep inside my outdoor BBQ island like some kind of archaeological artifact) decided to cut in and out every time I turned the music up past “mellow backyard vibes.” Nothing kills a good afternoon faster than your speakers crackling like they’re coughing up dust. 📦 First Impressions This thing is tiny. Like “did they ship me the right item?” tiny. But don’t let the size fool you — it punches like a heavyweight. Bluetooth range? Strong. Power? More than enough to drive the 6.5” Aquatic AV outdoor speakers I already had wired in. 🔧 Installation (AKA: How I Crawled Into My BBQ Island and Survived) My previous setup looked like NASA mission control. Wires, harnesses, proprietary connectors, and something pretending to be a subwoofer box. The Fosi made the whole thing simple: • Speaker wire → into left & right terminals • Power adapter → plug • Bluetooth → connect • Music → immediate happiness No proprietary weirdness. No random 4-pin blue plug. No tears. 🎵 Sound Quality Compared to my old Aquatic AV amp, which acted like it had seasonal allergies, the BT20A Pro is clean, strong, and shockingly loud for its size. • Bass is smooth (especially with your speakers’ built-in low-end) • Highs are crisp • Mids are clean • And the bass/treble knobs actually do something instead of just pretending Honestly, for a backyard setup that sits in a protected cabinet, this little thing is the perfect “sweet spot.” 📡 Bluetooth Fast pairing. Zero drama. I walked almost to the front yard before it even hinted at disconnecting — which, for anyone with an outdoor entertainment setup, is basically sorcery. 🔥 The Verdict If you want: ✔ A simple, clean replacement for a dead factory amp ✔ Power that actually moves your outdoor speakers ✔ Bluetooth that doesn’t quit ✔ A device that you can install without needing an engineering degree ✔ Something small enough to hide anywhere …then this is exactly the amp you want. 😂 Bonus Humor Section My old amp weighed 10 pounds and sounded like it had asthma. This Fosi weighs nothing, and sounds like it drinks pre-workout. ⸻ ⭐ Bottom Line: For the price, size, and performance, this little amp is the MVP of my backyard. If Fosi ever makes a “Pro Plus Ultra Nuclear Edition,” I’ll be first in line — but until then, this thing is staying right where it is, working flawlessly while I grill, chill, and pretend I’m an audio engineer.

### ⭐⭐⭐⭐⭐ Great Little Integrated Amp!
*by K***H on October 12, 2025*

Great Little Integrated Amp! Very well made of all metal. Easy to assemble and set up. Bluetooth was easy to connect and works great. This little amp has lots of power and sounds great. Runs warm but not hot. A great inexpensive alternative to large, more expensive integrated amps.

### ⭐⭐⭐⭐⭐ Power and clarity
*by T***A on July 23, 2024*

I have re-entered the hifi hobby after retiring. After giving a good number of components from my music/surround system to family a few years ago, I wanted to find an economical way to drive my remaining Polk tsi100 surround speakers. Could I turn them into a nice 2 channel sound system in our sunroom... Yes! This Fosi audio tb20a pro along with a recently purchased Wiim Mini streamer and SMSL SU1 DAC, result in sound coming out of my Polks beyond what I thought possible. I am writing this while listening to George Shearing with Nat King Cole. The bass response is clear, unruffled or veiled. The midrange is clean and nicely separated at the lower end from the bass. Treble is crisp but not harsh at all. I am frankly amazed at what my old "surrounds" are capable of bringing to my ears, which are very good with no loss at any level from a recent audiology screen. The Wiim Mini has a 10 channel EQ. This, in combination with the remarkably capable DAC and this wonderful amp, give this reenergized hifi nerd great options in varied music genres. 2 channel rocks! Update December 2024. I switched the op amps to Sparkos dual discreet SS3602. even at 30% off these op amps cost more than the amp at full price. Worth it? Absolutely! Instrument separation and clarity actually increased and some slight increase in depth of sound stage is heard. Several speakers added to the collection as well! All Polks, some old as well as the ES15's on black Friday. This has become a blast and products like this Fosi and the Wiim mini and SMSL SU1 DAC allow for amazing sound! Final update 2/1/25: with the addition of the 48volt 5amp GaN power supply and the Polk ES15's returned (wonderful speakers) and replaced by Elac debut 2.0 b5.2's because of their remarkable clarity (let them break in!) and finally the addition of the Topping p50 linear power supply, my system is far beyond what I thought was capable at this tier. The point of my final update is this. If you are building a modest system as I did, realize that this amp is very scalable and if combined with other components that are also scalable, a stunning system can be had and built over time as budget allows. For that reason, I enthusiastically recommend this very scalable amp!

## 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 Kuwait*
*Store origin: KW*
*Last updated: 2026-03-17*