---
product_id: 549049407
title: "ZK-TB21 Bluetooth 5.0 50W+50W+100W 2.1 Channel Subwoofer Amplifier Board TPA3116D2 HiFi Treble and Bass Control Stereo Digital Audio Amp Board for Home Theater DIY Speakers"
brand: "hosyond"
price: "1576503₫"
currency: VND
in_stock: true
reviews_count: 6
url: https://www.desertcart.vn/products/549049407-zk-tb21-bluetooth-5-0-50w-50w-100w-2-1
store_origin: VN
region: Vietnam
---

# Bluetooth 5.0 for stable, long-range streaming 200W total power output Multi-layer safety protection system ZK-TB21 Bluetooth 5.0 50W+50W+100W 2.1 Channel Subwoofer Amplifier Board TPA3116D2 HiFi Treble and Bass Control Stereo Digital Audio Amp Board for Home Theater DIY Speakers

**Brand:** hosyond
**Price:** 1576503₫
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your sound game — because your ears deserve the best!

## Quick Answers

- **What is this?** ZK-TB21 Bluetooth 5.0 50W+50W+100W 2.1 Channel Subwoofer Amplifier Board TPA3116D2 HiFi Treble and Bass Control Stereo Digital Audio Amp Board for Home Theater DIY Speakers by hosyond
- **How much does it cost?** 1576503₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/549049407-zk-tb21-bluetooth-5-0-50w-50w-100w-2-1)

## 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:** Wide 12-24V input, copper DC connectors, and AUX input make integration into any home theater or speaker project effortless.
- • **Next-Gen Connectivity:** Bluetooth 5.0 ensures seamless, lag-free audio streaming with extended range.
- • **Powerhouse Performance:** 50W+50W stereo channels plus 100W subwoofer deliver immersive, room-filling sound.
- • **Tailored Sound Control:** Independent treble and bass knobs let you customize your audio experience like a pro.
- • **Built to Last & Protect:** Overheat, overvoltage, reverse polarity, and circuit breaker protections keep your setup safe and reliable.

## Overview

The ZK-TB21 is a high-fidelity 2.1 channel amplifier board powered by the TPA3116D2 chip, delivering 200W total output with ultra-low distortion (THD ≤0.1%). Featuring Bluetooth 5.0 and AUX inputs, it offers flexible connectivity for home theater or DIY speaker setups. Independent bass and treble controls, combined with robust multi-layer safety protections and wide voltage compatibility, make it a reliable, customizable audio powerhouse.

## Description

ZK-TB21 Bluetooth 5.0 50W+50W+100W 2.1 Channel Subwoofer Amplifier Board TPA3116D2 HiFi Treble and Bass Control Stereo Digital Audio Amp Board for Home Theater DIY Speakers

## Features

- TPA3116D2 HIFI chip solution: with AM interference suppression function, 2.1 channel stereo output 50W+50W+100W, to ensure continuous serial high-power operation, THD ≤0.1%. Using high-quality filter inductors, the sound is full and clear.
- Bluetooth and AUX audio input: Bluetooth 5.0 version, higher transmission efficiency and longer distance. If your playback device does not have Bluetooth, you can also input audio signals through the 3.5MM jack(Note: When using AUX mode, please confirm that the Bluetooth connection of this module has been disconnected).
- Safety protection: The power amplifier board has overheat protection, reverse connection protection, circuit breaker protection, overvoltage and undervoltage protection; wide voltage input DC: 12-24V.
- Features copper DC connectors and insulated terminals. It can withstand high current, does not generate heat, and does not damage the wire. The free DC head lead is compatible with the input power interface of this product, even if you don't have a DC head adapter, you can easily wire it.
- Independent high and low bass control knobs, easy to adjust the volume, allowing you to experience theater-like sound effects. With its excellent performance and comprehensive cost performance, TDA3116D2 is widely used in home theaters, square speakers, etc.

## Product Details

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

## Images

![ZK-TB21 Bluetooth 5.0 50W+50W+100W 2.1 Channel Subwoofer Amplifier Board TPA3116D2 HiFi Treble and Bass Control Stereo Digital Audio Amp Board for Home Theater DIY Speakers - Image 1](https://m.media-amazon.com/images/I/61LxGbc9WPL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent product for the affordable price
*by S***⚡ on January 6, 2025*

The media could not be loaded. I bought this product like 2 weeks back, this product was excellent it blown my mind. I giving this a power supply of 12v 3a still working perfect with my 30w woofer+20w tweeter 4ohm bookshelf speakers and 100w 4ohm Sony subwoofer. It has good sound quality and nice power handling. This security mechanisms works excellent. Like the auto power cut off, or else the short circuit protection and over voltage and under voltage. Everything works perfect. Ease of use, easy setup. Nice and fast Bluetooth connectivity. Great durability, I dropped it from my table still it good doesn't have a scratch on the body. Small in size fits perfect on my desk.

### ⭐⭐⭐⭐⭐ Impressed
*by R***P on March 7, 2025*

I’m impressed with this little amp board kit. The only gripe I’d have is the little fan barely making noise but that’s nit picking because it’s whisper quiet.Back to positive feedback.1: Driving retro JBL speakers from the 80s with 5 1/2 inch drivers. 150w 8ohm. Sound perfect.2: Bluetooth links with Apple TV4k. Flawlessly3: Driving 2 40w exciters with 1 50w shaker from sub channel. (Have to turn down gain and volume still).4: Links to iPhone flawlessly.5: Sub channel has separate volume and gain.6: bass and treble have separate gain.7: Volume control.8: Quality heat sink.9: Plenty of power to drive power hungry 80s speakers.10: Tiny footprint with plenty of undistorted sound coming from speakers.11: Quality capacitor array.I’m honestly impressed. My recliner rock and rolls and I’m only using 16vdc @4Ah and I could add 1 more bass shaker easily. If I turned up the gain and volume on the sub channel I’d blow up chair.

### ⭐⭐⭐⭐ So far so good - not perfect but also not expensive
*by C***C on May 7, 2025*

I got bored with my desktop Bose PC speaker setup - it was good, but not great. I’ve amassed quite the hoard of home theater equipment over the years so it occurred to be that two of my smaller klipsch bookshelf speakers, paired with a passive 10” ported sub might make a decent setup. So I started searching amazon for 2.1 amps and saw the $$$ options, and then this. I’m not that serious about this project so I decided to buy this $20 amp and a cheap UL listed 24v/5a dc power supply. $30 total, shipped.It all arrived today and assembly was easy - except one of the stand-offs for the top lid had stripped out threads so I was only able to get three screws in. Whatever. Everything else went smooth - got everything wired up and plugged in. It worked instantly - BUT you need to keep the source volume louder so you can keep the volume knob low on this amp because anything more than 50% volume and it emits a horrific screech. I thought it was totally broken until I turned up my PC volume and kept the amp at like 20-25%. Zero buzz or hiss with this combo and it’s plenty loud.As far as core functionality is concerned - I’m very happy. It sounds great and has just enough adjustability for the speakers/sub that it’s really easy to dial it in to my exact listening style. We’ll see how long it lasts - but for the money, even with its quirks, I think this is a solid buy.

## Frequently Bought Together

- Bluetooth 5.0 50W+50W+100W 2.1 Channel Subwoofer Amplifier Board TPA3116D2 HiFi Treble and Bass Control Stereo Digital Audio Amp Board for Home Theater DIY Wireless Speakers
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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-01-23*