---
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: "KD 12.85"
currency: KWD
in_stock: true
reviews_count: 13
category: "Hosyond"
url: https://www.desertcart.com.kw/products/549049407-zk-tb21-bluetooth-5-0-50w-50w-100w-2-1
store_origin: KW
region: Kuwait
---

# Bluetooth 5.0 for seamless wireless 200W peak power output Multi-layer safety protection 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:** KD 12.85
**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?** KD 12.85 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/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

- • **Compact DIY Friendly:** Sleek, lightweight design fits any home theater or custom speaker build with ease.
- • **Next-Gen Connectivity:** Bluetooth 5.0 ensures ultra-fast pairing and extended range—ditch the wires.
- • **Powerhouse Performance:** Unleash 50W+50W+100W stereo + subwoofer output for immersive sound.
- • **Tailored Audio Control:** Independent treble and bass knobs let you craft your perfect soundscape.
- • **Built to Last & Protect:** Overheat, overvoltage, and reverse polarity safeguards keep your setup safe and sound.

## Overview

The ZK-TB21 is a compact yet powerful 2.1 channel amplifier board featuring the TPA3116D2 HiFi chip, delivering a total of 200W output (50W+50W+100W). Equipped with Bluetooth 5.0 and AUX input, it offers versatile connectivity options. Independent bass and treble controls allow precise audio tuning, while robust safety features protect against overheating, voltage irregularities, and reverse polarity. Ideal for home theaters and DIY speaker projects, this amplifier combines high fidelity sound with durable, user-friendly design.

## Description

desertcart.com: 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 : Industrial & Scientific

Review: Small Yet Mighty!! - This amp provides a lot of bang for your buck! You havento do a little minor assembly, which I wasn't expecting, but it's simple and a screw driver is provided. I'm powering it with a 20v DeWalt tool battery to drive no less than seven speakers in a custom enclosure - 1ea 10" Klipsch sub, 2ea 10" Ashdown mid/woofers and 2 pairs of 2.5" Klipsch high frequency drivers with 1" poly dome tweeters. And it effing rocks! After pairing it in my phone, the Bluetooth connects quickly every time I power the rig up. The fidelity is excellent. Crisp highs, detailed mids and plenty of power to drive the sub, especially with the sun frequency set higher. At lower settings where it rolls off more mid-lows its power does drop off, but, with a tiny plate amp like this that's to be expected. I'm honestly blown away with how much bass thin amp can produce. With more use I will have more info on longevity (and battery life, but,that's not related to this review). Well worth the money for what you get!!
Review: Excellent product for the affordable price - 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.

## 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CCJQBWST |
| Best Sellers Rank | #11,137 in Electronics ( See Top 100 in Electronics ) #42 in Audio Component Amplifiers |
| Brand | Hosyond |
| Date First Available | July 21, 2023 |
| Item Weight | 7.9 ounces |
| Item model number | H017 |
| Manufacturer | Hosyond |
| Material | Copper |
| Maximum Supply Voltage | 24 Volts (DC) |
| Minimum Supply Voltage | 12 Volts (DC) |
| Mounting Type | Surface Mount |
| Number of Channels | 2 |
| Output Power | 200 Watts |
| Package Dimensions | 5.16 x 4.45 x 1.85 inches |
| Package Type Name | Protective Shell |
| Specification Met | CE, FCC |
| Supply Current | 5 Amps |
| UPC | 732214748279 |
| Voltage | 24 Volts (DC) |

## Product Details

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

## 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

### ⭐⭐⭐⭐⭐ Small Yet Mighty!!
*by M***D on September 14, 2025*

This amp provides a lot of bang for your buck! You havento do a little minor assembly, which I wasn't expecting, but it's simple and a screw driver is provided. I'm powering it with a 20v DeWalt tool battery to drive no less than seven speakers in a custom enclosure - 1ea 10" Klipsch sub, 2ea 10" Ashdown mid/woofers and 2 pairs of 2.5" Klipsch high frequency drivers with 1" poly dome tweeters. And it effing rocks! After pairing it in my phone, the Bluetooth connects quickly every time I power the rig up. The fidelity is excellent. Crisp highs, detailed mids and plenty of power to drive the sub, especially with the sun frequency set higher. At lower settings where it rolls off more mid-lows its power does drop off, but, with a tiny plate amp like this that's to be expected. I'm honestly blown away with how much bass thin amp can produce. With more use I will have more info on longevity (and battery life, but,that's not related to this review). Well worth the money for what you get!!

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

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.

### ⭐⭐⭐⭐⭐ 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

- 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 Kuwait*
*Store origin: KW*
*Last updated: 2026-02-19*