---
product_id: 85729159
title: "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: "₪666"
currency: ILS
in_stock: true
reviews_count: 11
category: "Fosi Audio"
url: https://www.desertcart.co.il/products/85729159-bt20a-pro-bluetooth-5-0-amplifier-300w-x2-wireless-amp
store_origin: IL
region: Israel
---

# Bluetooth 5.0 Connectivity 300W x2 Power Output Custom Bass & Treble Control 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:** ₪666
**Availability:** ✅ In Stock

## Summary

> 🎵 Small Amp, Big Vibes: Power Your Sound, Own Your Space

## Quick Answers

- **What is this?** 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?** ₪666 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/products/85729159-bt20a-pro-bluetooth-5-0-amplifier-300w-x2-wireless-amp)

## 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 setups—just connect power, speakers, and Bluetooth for instant audio bliss.
- • **Tailor Your Soundscape:** Adjust bass and treble with precision knobs to craft your perfect audio vibe—no presets, just pure control.
- • **Compact Yet Mighty Design:** Sleek, lightweight, and built with durable metal housing, it fits discreetly anywhere while delivering heavyweight performance.
- • **Powerhouse Punch in a Mini Frame:** Delivers a robust 300W per channel to energize your outdoor or home speakers with crystal-clear sound.
- • **Seamless Bluetooth 5.0 Streaming:** Experience effortless wireless pairing with extended range and memory function for zero interruptions.

## Overview

The Fosi Audio BT20A Pro is a compact, high-efficiency Class D amplifier delivering 300W per channel with Bluetooth 5.0 wireless connectivity. Featuring customizable bass and treble controls and replaceable Op-Amps, it offers audiophile-grade sound tailored to your preferences. Its minimalist design and easy setup make it the ideal upgrade for home or outdoor passive speaker systems, combining powerful performance with sleek portability.

## 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 | #4,135 in Electronics ( See Top 100 in Electronics ) #7 in Audio Component Amplifiers |
| Brand | Fosi Audio |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,488) |
| 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

![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.

### ⭐⭐⭐⭐⭐ Amazing Clean Powerful Streaming
*by P***R on August 27, 2025*

I admit that I have little knowledge of audio And electronics. I thought 300 watts of audio power had to come from a big heavy expensive amp. My new house came with 8 ceiling speakers . I had no idea whether they worked or sounded decent. The previous owner left an AVX speaker selector next to a bunch of speaker wires that were coming out of a wall port. I called Cambridge Audio and an advisor told me I would need to buy an amp costing at least $600 to run the speakers. Since I had no idea how it would sound , i looked on Amazon for an alternative. I took a chance on this tiny inexpensive Fosi amp to see if the setup even worked. It turns out that 3 of the 4 zones work and each sounds great using my phones Bluetooth and Apple Music through the Fosi into the speaker selector . I am being cautious with this setup , but I have determined that I can definitely power three zones simultaneously at rockin’ volume. The bass is not earth shaking , but is ok. I am amazed at the sound . Since the speaker selector has an impedance protector switch, I am relatively certain that I will be able to run 3 zones simultaneously without blowing out the speakers. I think the Fosi Amp is great . I am not audiophile and have reasonable expectations. The amp has an 18 month warranty. It is tiny and the Bluetooth is so strong that I do not have to leave my phone next to the amp. I highly recommend this tiny Bluetooth 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 Israel*
*Store origin: IL*
*Last updated: 2026-02-22*