---
product_id: 103350286
title: "KNACRO 50W + 50W TDA7492P 2x50 Watt Dual Channel Amplifier Wireless Digital Bluetooth 4.0 Audio Receiver Amplifier Board"
brand: "knacro"
price: "¥6004"
currency: JPY
in_stock: true
category: "Musical Instruments"
url: https://www.desertcart.jp/products/103350286-knacro-50w-50w-tda7492p-2x50-watt-dual-channel-amplifier-wireless
store_origin: JP
region: Japan
---

# KNACRO 50W + 50W TDA7492P 2x50 Watt Dual Channel Amplifier Wireless Digital Bluetooth 4.0 Audio Receiver Amplifier Board

**Brand:** knacro
**Price:** ¥6004
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** KNACRO 50W + 50W TDA7492P 2x50 Watt Dual Channel Amplifier Wireless Digital Bluetooth 4.0 Audio Receiver Amplifier Board by knacro
- **How much does it cost?** ¥6004 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/103350286-knacro-50w-50w-tda7492p-2x50-watt-dual-channel-amplifier-wireless)

## Best For

- knacro enthusiasts

## Why This Product

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

## Description

Power: 2.1 interface 8 ~ 25V DC power supply Audio input: stereo input various versions of the Bluetooth connection, using CSR8635 Bluetooth chip, Bluetooth V4.0, high software compatibility Output Impedance: 8 ohms Best(4,6,8,16 ohm impedance can drive speakers) Output Power: Add pre-5532 output foot (powered 25V ,6-ohm impedance output 2 X 50W, 8 ohm impedance output 2X40W dual-channel) TDA7492 digital amplifier chip, designed to optimize the circuit layout, the sound quality is very good, big power DIP switches can be adjusted directly after the amp gain more respect and better promote greater damping horn

## Features

- This is an upgrade version with AUX port and power switch. TDA7492 digital amplifier with AUX input and power switch; Designed to optimize circuit layout, which can offer excellent sound output and high power.
- With its DIP switch, it will be more convenient to adjust its post circuit gain, which can drive speakers with higher impedance.With its DIP switch, it will be more convenient to adjust its post circuit gain, which can drive speakers with higher impedance.
- Audio Input: ①3.5mm AUX input; ②Adopting CSR8635 Bluetooth chip, which can support Bluetooth stereo audio input.
- Output Impedance: 4/6/8/16 ohms speakers supported (8 ohms would be best); Output Power: Adding front-end circuit 5532 to ensure its high output power.
- Power Supply: 2.1 interface 8~25V DC power supply; Wrong polarity will burn its chip, please note.

## Images

![KNACRO 50W + 50W TDA7492P 2x50 Watt Dual Channel Amplifier Wireless Digital Bluetooth 4.0 Audio Receiver Amplifier Board - Image 1](https://images-na.ssl-images-amazon.com/images/I/81itsIUFwQL.jpg)
![KNACRO 50W + 50W TDA7492P 2x50 Watt Dual Channel Amplifier Wireless Digital Bluetooth 4.0 Audio Receiver Amplifier Board - Image 2](https://images-na.ssl-images-amazon.com/images/I/81t3Ac0Bf1L.jpg)
![KNACRO 50W + 50W TDA7492P 2x50 Watt Dual Channel Amplifier Wireless Digital Bluetooth 4.0 Audio Receiver Amplifier Board - Image 3](https://images-na.ssl-images-amazon.com/images/I/51NlU1SeQwL.jpg)
![KNACRO 50W + 50W TDA7492P 2x50 Watt Dual Channel Amplifier Wireless Digital Bluetooth 4.0 Audio Receiver Amplifier Board - Image 4](https://images-na.ssl-images-amazon.com/images/I/91oY4mLnJmL.jpg)
![KNACRO 50W + 50W TDA7492P 2x50 Watt Dual Channel Amplifier Wireless Digital Bluetooth 4.0 Audio Receiver Amplifier Board - Image 5](https://images-na.ssl-images-amazon.com/images/I/81B1hNkij5L.jpg)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-28*