---
product_id: 629537133
title: "Hosyond 2.1 Channel Bluetooth Audio Power Amplifier Board 50W×2+100W with Tre..."
brand: "hosyond"
price: "€ 34.79"
currency: EUR
in_stock: null
reviews_count: 8
category: "Hosyond"
url: https://www.desertcart.fi/products/629537133-hosyond-2-1-channel-bluetooth-audio-power-amplifier-board-50w
store_origin: FI
region: Finland
---

# Bluetooth 5.0 with 49ft range 2.1 channel output: 50W×2 + 100W subwoofer Multi-layer protection: short circuit, overcurrent, overheating Hosyond 2.1 Channel Bluetooth Audio Power Amplifier Board 50W×2+100W with Tre...

**Brand:** hosyond
**Price:** € 34.79
**Availability:** ❌ Out of Stock

## Summary

> 🎶 Elevate your sound game—because your space deserves to be heard.

## Quick Answers

- **What is this?** Hosyond 2.1 Channel Bluetooth Audio Power Amplifier Board 50W×2+100W with Tre... by hosyond
- **How much does it cost?** € 34.79 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/629537133-hosyond-2-1-channel-bluetooth-audio-power-amplifier-board-50w)

## Best For

- hosyond enthusiasts

## Why This Product

- Trusted hosyond brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **DIY-Ready & Versatile:** Copper connectors and barrier terminals ensure durable, heat-resistant wiring—ideal for home theaters, DIY speakers, or retail sound systems.
- • **Robust Safety Features:** Built-in protections guard against short circuits, overcurrent, overheating, and reverse polarity to keep your setup safe and reliable.
- • **Customizable Audio Tuning:** Fine-tune treble and bass knobs to craft your perfect sound profile—whether it’s crisp highs or deep, punchy lows.
- • **Powerful 2.1 Channel Sound:** Experience immersive audio with 50W stereo plus a booming 100W subwoofer output for rich, layered soundscapes.
- • **Seamless Dual Input Connectivity:** Switch effortlessly between Bluetooth 5.0 wireless streaming and 3.5mm AUX input without interrupting your vibe.

## Overview

The ZK-MT21 is a high-performance 2.1 channel Bluetooth audio amplifier board delivering 50W per stereo channel plus 100W subwoofer power. Featuring Bluetooth 5.0 with a 49-foot range and dual input options, it offers customizable treble and bass controls for tailored sound. Engineered with advanced protection mechanisms and durable copper connectors, it’s perfect for DIY audio projects, home theaters, and commercial sound setups.

## Description

desertcart.com: ZK-MT21 2.1 Channel Bluetooth Audio Power Amplifier Board 50W×2+100W with Treble and Bass Control for DIY Bluetooth Speaker Home Theater : Industrial & Scientific

Review: The one to buy - I'm more impressed with this one over the larger 36v $36 one of a different brand I was using that cooling fan crapped out. This one sounds better more dynamic and seems to have as much power at 24v also I had to unplug the 3.5mm jack to use the Bluetooth this one you can just link to it even while using the jack as input and it was half the price and no fan to crap out. I'm using for my tv I boxed in the stud cavity's in the wall under my tv and cut in a 6.5" component set and an 8" subwoofer, it's pretty sweet, I also used PVC pipe to install a port into the subwoofer cavity I had to replace the sheetrock with plywood and mud it in like drywall also the sheetrock couldn't support the pressure good even with a wood ring glued on.
Review: Not bad for a cheap sound system. - I'm actually surprised that this works as well as it does. I hooked it up to the speakers in an old Samsung TV soundbar and subwoofer. I usually connect via Bluetooth from my laptop. It sounds much better than anything this cheap has a right to sound. Everything functions, the Bluetooth is reliable. I can't figure out if this is the amp, but I have to keep turning down the subwoofer, probably because the speaker I hooked it up to is cheap. Otherwise, it's loud and clear.

## Features

- [Two Input Methods] It has two audio input methods: Bluetooth and 3.5mm AUX. Bluetooth 5.0 version, higher transmission efficiency, transmission distance up to 49 feet (no obstruction).
- [Treble and Bass Adjustment] 2.1 channel, maximum output power 2X50W+100W. By adjusting the high and low frequency knobs, you can make the sound more layered and the bass more shocking.
- [Protection Function] It has short circuit protection, overcurrent, overheating, and anti-reverse connection protection. When an overload occurs, the device reports the fault condition to the processor to protect itself from damage.
- [High Quality] Features copper DC connectors and barrier style terminals. It can withstand large currents without generating heat or damaging wires. Comes with a DC head lead, which is compatible with the input power interface of this product. Even if you don’t have a DC head adapter or battery, you can easily connect it.
- [Application] Widely used in store solicitation, home theaters, DIY speakers, etc. If you have any questions about the product, or the product has quality problems, please feel free to contact us and we will give you a satisfactory answer.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CYLW7NRC |
| Brand Name | Hosyond |
| Customer Reviews | 4.4 out of 5 stars 723 Reviews |
| Included Components | 2.1 Bluetooth Amplifier board |
| Manufacturer | Hosyond |
| Material Type | Copper, Acrylic |
| Maximum Supply Voltage | 24 Volts (DC) |
| Minimum Supply Voltage | 12 Volts (DC) |
| Model | MT21 |
| Mounting Type | Surface Mount |
| Number of Channels | 2 |
| Output Power | 50 Watts |
| Package Type Name | Box or Clamshell |
| Specification Met | CE |
| UPC | 768572762640 |
| Voltage | 12 Volts (DC) |
| Warranty Description | NO |

## Product Details

- **Voltage:** 12 Volts (DC)
- **Manufacturer:** Hosyond
- **Maximum Supply Voltage:** 24 Volts (DC)
- **Minimum Supply Voltage:** 12 Volts (DC)
- **Mounting Type:** Surface Mount

## Images

![Hosyond 2.1 Channel Bluetooth Audio Power Amplifier Board 50W×2+100W with Tre... - Image 1](https://m.media-amazon.com/images/I/61SBzxA8PrL.jpg)
![Hosyond 2.1 Channel Bluetooth Audio Power Amplifier Board 50W×2+100W with Tre... - Image 2](https://m.media-amazon.com/images/I/61h7b2mZBOL.jpg)
![Hosyond 2.1 Channel Bluetooth Audio Power Amplifier Board 50W×2+100W with Tre... - Image 3](https://m.media-amazon.com/images/I/61hFCgUy5YL.jpg)
![Hosyond 2.1 Channel Bluetooth Audio Power Amplifier Board 50W×2+100W with Tre... - Image 4](https://m.media-amazon.com/images/I/71KwqPL5FLL.jpg)
![Hosyond 2.1 Channel Bluetooth Audio Power Amplifier Board 50W×2+100W with Tre... - Image 5](https://m.media-amazon.com/images/I/71N5tRo2lfL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ The one to buy
*by A***Z on November 1, 2025*

I'm more impressed with this one over the larger 36v $36 one of a different brand I was using that cooling fan crapped out. This one sounds better more dynamic and seems to have as much power at 24v also I had to unplug the 3.5mm jack to use the Bluetooth this one you can just link to it even while using the jack as input and it was half the price and no fan to crap out. I'm using for my tv I boxed in the stud cavity's in the wall under my tv and cut in a 6.5" component set and an 8" subwoofer, it's pretty sweet, I also used PVC pipe to install a port into the subwoofer cavity I had to replace the sheetrock with plywood and mud it in like drywall also the sheetrock couldn't support the pressure good even with a wood ring glued on.

### ⭐⭐⭐⭐⭐ Not bad for a cheap sound system.
*by R***R on January 7, 2026*

I'm actually surprised that this works as well as it does. I hooked it up to the speakers in an old Samsung TV soundbar and subwoofer. I usually connect via Bluetooth from my laptop. It sounds much better than anything this cheap has a right to sound. Everything functions, the Bluetooth is reliable. I can't figure out if this is the amp, but I have to keep turning down the subwoofer, probably because the speaker I hooked it up to is cheap. Otherwise, it's loud and clear.

### ⭐⭐⭐⭐⭐ Exceeded expectations
*by A***R on September 29, 2025*

I have a couple of these. Bluetooth sounds better than using the cord. Use an appropriately powerful DC laptop brick or anything similar if you want the biggest sound. The one connected to my PC uses a 200w 20v DC brick to drive 4 speakers (2L and 2R in parallel) plus 2x 12in subs (also in parallel). It will shake things off the walls in my house. You won't believe the performance from such a cheap device. Pros: Easy to assemble, wire, and connect power. Bluetooth setup is simple. With the right power and speakers/sub, your neighbors will think there's an earthquake. Cons: Slight hiss if you leave the main volume knob turned up to max with nothing playing. If you're listening to something with pauses at low volume, it may not play the next spoken syllable or noise. This does not happen at medium volume or if the movie you are watching has birds chirping etc in the background. It's almost as if it goes to sleep for a fraction of a second.

## Frequently Bought Together

- Hosyond 2.1 Channel Bluetooth Audio Power Amplifier Board 50W×2+100W with Treble and Bass Control for DIY Bluetooth Speaker Home Theater
- APIELE 16mm Latching Push Button Switch 12V DC On Off Black Shell with LED Angel Eye Head for 0.63" Mounting Hole with Wire Socket Plug Self-Locking (Blue/Black Shell)
- Kzreect for Power Wheel Adapter Compatible with Milwaukee 18V Battery, Converter Kit with Fuse Holder, Switch, Terminal, 12AWG Wire for DIY RC Car Toys (1 Pack)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.fi/products/629537133-hosyond-2-1-channel-bluetooth-audio-power-amplifier-board-50w](https://www.desertcart.fi/products/629537133-hosyond-2-1-channel-bluetooth-audio-power-amplifier-board-50w)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-02*