---
product_id: 100494194
title: "TECH AND TRADE 450 WATTS DIY STK 4141 Based Stereo Audio Amplifier Board Bluetooth Module Card KIT with Karaoke MIC Circuit"
brand: "tech and trade"
price: "R822"
currency: ZAR
in_stock: true
reviews_count: 5
category: "Tech And Trade"
url: https://www.desertcart.co.za/products/100494194-tech-and-trade-450-watts-diy-stk-4141-based-stereo
store_origin: ZA
region: South Africa
---

# Built-in karaoke mic circuit Seamless Bluetooth connectivity 450W stereo power TECH AND TRADE 450 WATTS DIY STK 4141 Based Stereo Audio Amplifier Board Bluetooth Module Card KIT with Karaoke MIC Circuit

**Brand:** tech and trade
**Price:** R822
**Availability:** ✅ In Stock

## Summary

> 🎶 Amplify your vibe, own the stage!

## Quick Answers

- **What is this?** TECH AND TRADE 450 WATTS DIY STK 4141 Based Stereo Audio Amplifier Board Bluetooth Module Card KIT with Karaoke MIC Circuit by tech and trade
- **How much does it cost?** R822 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/100494194-tech-and-trade-450-watts-diy-stk-4141-based-stereo)

## Best For

- tech and trade enthusiasts

## Why This Product

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

## Key Features

- • **Karaoke-Ready:** Integrated microphone circuit lets you unleash your inner star—just plug in and sing!
- • **Versatile Setup:** Supports subwoofer connections on both channels for a full, immersive audio experience.
- • **Pro-Grade Cooling:** Heavy-duty heat sink design keeps your amplifier cool during intense jam sessions.
- • **Powerhouse Performance:** Delivers a robust 450 watts stereo output for crystal-clear sound that fills any room.
- • **Next-Level Connectivity:** Advanced Bluetooth module ensures distortion-free wireless streaming with zero humming.

## Overview

The TECH AND TRADE 450W DIY STK 4141 Stereo Audio Amplifier Board combines powerful 450-watt stereo output with a premium STK 4141 IC for superior sound clarity. Featuring an integrated karaoke microphone circuit and a top-tier Bluetooth module, this kit is designed for aspiring singers and audiophiles alike. Its robust heat sink ensures reliable performance, while support for subwoofers delivers deep, immersive bass. Ideal for DIY enthusiasts seeking professional-grade audio amplification with wireless convenience.

## Description

This kit is for upcoming singers. You may practice your songs on stereo with this kit. This kit allows you to sing on your favorite tunes. Jus plug a good mic and you are good to go. Is a stk based board. Stk series of ics is known to be the best ic in terms of power and sound clarity. Ic ic 4141 of stk series. Ic provides about 450 watts of power in stereo mode. Ic is the base of this circuit board. The circuit needs 24-0-24v DC power to run. The ic generates a lot of heat during operation so it needs a heavy and of heat sink to absorb the heat. This circuit is 2.0. You may connect subwoofers to both the channels. It also contains a bluetooth module which is best in its class. It is pagria made and so far the best in the market. There is no humming or any distortion while running the bluetooth mode. Both the items come with a manual to understand the connections.

Review: While playing in will automaticaly OFF After 4/5 minutes. - Can not play so long. After 4/5min. It will automatic OFF. After i try 1min. 2/3 times it will work again. But fatreward it will repeated again. I used another big headsink in the transistor and i fixed another headsink fixed to the original headsink in the IC headsink. But it will not work, it repeated again. So what is the main problem. It look like i think overheat. That why i fixed it. Please help.
Review: Bhut achha hai - Behtrin avaj ke lie

## Features

- Its 450 watts stereo output
- Better Than 4440 IC, 2n3055
- With Karaoke MIC Circuit

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07KVZR34M |
| Batteries Included | No |
| Batteries Required | No |
| Best Sellers Rank | #68,824 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,145 in Printed Circuit Boards |
| Brand | TECH AND TRADE |
| Country of Origin | India |
| Customer Reviews | 2.6 2.6 out of 5 stars (9) |
| Date First Available | 9 November 2018 |
| Item Dimensions LxWxH | 15 x 15 x 10 Centimeters |
| Item Weight | 999 g |
| Manufacturer | TECH AND TRADE SOLUTIONS |
| Mounting Hardware | 1 MAIN BOARD WITH STK IC MOUNTED , 1 BLUETOOTH MODULE, 1 REMOTE AND MANUALS |
| Product Dimensions | 15 x 15 x 10 cm; 999 g |
| Wattage | 450 Watts |

## Images

![TECH AND TRADE 450 WATTS DIY STK 4141 Based Stereo Audio Amplifier Board Bluetooth Module Card KIT with Karaoke MIC Circuit - Image 1](https://m.media-amazon.com/images/I/91Tml6DUyOL.jpg)
![TECH AND TRADE 450 WATTS DIY STK 4141 Based Stereo Audio Amplifier Board Bluetooth Module Card KIT with Karaoke MIC Circuit - Image 2](https://m.media-amazon.com/images/I/816bmiLC98L.jpg)
![TECH AND TRADE 450 WATTS DIY STK 4141 Based Stereo Audio Amplifier Board Bluetooth Module Card KIT with Karaoke MIC Circuit - Image 3](https://m.media-amazon.com/images/I/81FEUvzJ6vL.jpg)
![TECH AND TRADE 450 WATTS DIY STK 4141 Based Stereo Audio Amplifier Board Bluetooth Module Card KIT with Karaoke MIC Circuit - Image 4](https://m.media-amazon.com/images/I/91Cirv1owGL.jpg)
![TECH AND TRADE 450 WATTS DIY STK 4141 Based Stereo Audio Amplifier Board Bluetooth Module Card KIT with Karaoke MIC Circuit - Image 5](https://m.media-amazon.com/images/I/91RNs-H96NL.jpg)

## Questions & Answers

**Q: Do you have 24-0-24 10a transformer?**
A: NO.

**Q: Can I use samcon 440 watt sub woofer on this board**
A: yes.

**Q: Rms output power per channel**
A: ABOUT 225 WATTS RMS PER CHANNEL TOTAL ABOUT 450 WATTS RMS.

**Q: What is the supply for mic module**
A: IT RUNS ON 12 V DC. PLEASE SEARCH OUR YOUTUBE CHANNEL AND THERE YOU CAN FIND A DETAILED VIDEO ABOUT THE INSTALLATION AND CONNECTIONS OF THIS BOARD.

## Customer Reviews

### ⭐ While playing in will automaticaly OFF After 4/5 minutes.
*by J***A on 25 August 2021*

Can not play so long. After 4/5min. It will automatic OFF. After i try 1min. 2/3 times it will work again. But fatreward it will repeated again. I used another big headsink in the transistor and i fixed another headsink fixed to the original headsink in the IC headsink. But it will not work, it repeated again. So what is the main problem. It look like i think overheat. That why i fixed it. Please help.

### ⭐⭐⭐⭐ Bhut achha hai
*by S***A on 2 September 2021*

Behtrin avaj ke lie

### ⭐⭐⭐⭐ About remote
*by A***R on 3 July 2019*

Good product .. But remote is not working... Bad point...

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-07-10*