---
product_id: 356973381
title: "Hacbop ZK-TB21 TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 50WX2+100W 2.1 Channel Power Audio Stereo Amplifier Board"
brand: "hacbop"
price: "¥733"
currency: JPY
in_stock: false
reviews_count: 8
url: https://www.desertcart.jp/products/356973381-hacbop-zk-tb21-tpa3116d2-bluetooth-5-0-subwoofer-amplifier-board
store_origin: JP
region: Japan
---

# Bluetooth 5.0 seamless pairing 50W x2 stereo power 12-24V wide voltage range Hacbop ZK-TB21 TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 50WX2+100W 2.1 Channel Power Audio Stereo Amplifier Board

**Brand:** hacbop
**Price:** ¥733
**Availability:** ❌ Out of Stock

## Summary

> 🎶 Power your vibe with precision and punch!

## Quick Answers

- **What is this?** Hacbop ZK-TB21 TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 50WX2+100W 2.1 Channel Power Audio Stereo Amplifier Board by hacbop
- **How much does it cost?** ¥733 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/356973381-hacbop-zk-tb21-tpa3116d2-bluetooth-5-0-subwoofer-amplifier-board)

## Best For

- hacbop enthusiasts

## Why This Product

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

## Key Features

- • **Class D Efficiency:** High-performance amplifier chip ensures powerful sound with minimal energy waste.
- • **Versatile Power Input:** Supports 12-24V DC, perfect for flexible setups and stable performance.
- • **Next-Gen Bluetooth 5.0:** Effortless wireless connectivity for crystal-clear audio streaming without lag.
- • **Immersive 2.1 Channel Sound:** Experience rich stereo and deep bass with 50W per channel plus 100W subwoofer power.
- • **Compact & Lightweight Design:** Sleek 13x11.5x5 cm footprint and just 246g—fits anywhere, built for portability.

## Overview

The Hacbop ZK-TB21 is a compact 2.1 channel amplifier board featuring dual TPA3116D2 chips delivering 50W per stereo channel plus 100W subwoofer output. Equipped with Bluetooth 5.0 for seamless wireless audio, it supports a wide 12-24V DC input range and operates with Class D efficiency, making it ideal for professional-grade audio setups in a portable form factor.

## Description

Hacbop Output Impedance 4~8 Ohm Working Type Class D Audio Input Aux 5.0. Color Black. Material Plastic. Size 118 X 100 X 22Mm. Package Included 1 X Zk Tb21 Tpa3116D2 5.0 Subwoofer Amplifier Board. Only The Above Package Content, Other Products Are Not Included. Note Light Shooting And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Actual Product. Please Allow ±1 3Cm Error Due To Manual Measurement.

## Features

- Power Supply: Dc 12 ~ 24 V
- Product Name: 2.1 Channel Tpa3116D2 Amplifier
- Maximum Output Power: 2 X 50 W 100 W
- Amp Chip: 2 X Tpa3116D2
- Channels: 2.1

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Hacbop |
| Part number | 427319 |
| Item Weight | 246 g |
| Product Dimensions | 13 x 11.5 x 5 cm; 246 g |
| Item model number | 427319 |
| Material | Plastic |
| Voltage | 24 Volts |
| Item Package Quantity | 1 |
| Plug profile | Surface Mount |
| Specification met | Class D |

## Product Details

- **Item dimensions L x W x H:** 13 x 11.5 x 5 centimetres
- **Voltage:** 24 Volts
- **Manufacturer:** Hacbop
- **Maximum supply voltage:** 24 Volts (DC)
- **Mounting type:** Surface Mount

## Images

![Hacbop ZK-TB21 TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 50WX2+100W 2.1 Channel Power Audio Stereo Amplifier Board - Image 1](https://m.media-amazon.com/images/I/41F3jdetlLL.jpg)
![Hacbop ZK-TB21 TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 50WX2+100W 2.1 Channel Power Audio Stereo Amplifier Board - Image 2](https://m.media-amazon.com/images/I/71ATC6zeyML.jpg)
![Hacbop ZK-TB21 TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 50WX2+100W 2.1 Channel Power Audio Stereo Amplifier Board - Image 3](https://m.media-amazon.com/images/I/71KVMwBTkoL.jpg)
![Hacbop ZK-TB21 TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 50WX2+100W 2.1 Channel Power Audio Stereo Amplifier Board - Image 4](https://m.media-amazon.com/images/I/71GKPXZEo1L.jpg)
![Hacbop ZK-TB21 TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 50WX2+100W 2.1 Channel Power Audio Stereo Amplifier Board - Image 5](https://m.media-amazon.com/images/I/71Shm495wKL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent little amplifier, with exactly the features I needed
*by A***W on 10 July 2023*

At last, a cheap amp that does what I want, and does it well. I had to try two or thee 3.5mm stereo jacks before I found one that worked properly with it. But wow, for the money it's excellent. Quiet too, and wonderfully compact. This is the best cheap Chinese-made amp I've tried so far, and I've tried a few. Now it just remains to be seen if it keeps on working!

### ⭐⭐⭐⭐ Powerful
*by F***T on 18 February 2023*

Love this product it's so powerful sounds good too. The only problem I have is that the Bluetooth stopped working after the first use but all in all aux works fine.

### ⭐⭐⭐⭐⭐ Very impressive
*by S***N on 28 October 2022*

I am going to build a portable box but tests and pre built on 24v. Vocals are extremely clear.

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**Shop now:** [https://www.desertcart.jp/products/356973381-hacbop-zk-tb21-tpa3116d2-bluetooth-5-0-subwoofer-amplifier-board](https://www.desertcart.jp/products/356973381-hacbop-zk-tb21-tpa3116d2-bluetooth-5-0-subwoofer-amplifier-board)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-23*