> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Digital Bluetooth Power Amplifier (50W\*2)

**Type:** Product page · **SKU:** DFR0793 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/digital-bluetooth-power-amplifier-50w-2.html ([markdown](https://core-electronics.com.au/digital-bluetooth-power-amplifier-50w-2.html.md))

DIY your favorite Speakers with this digital Bluetooth Power Amplifier! This board integrates Bluetooth 5.0, TF card and U-disk, and features 50W output power and...

## Pricing

- **Price:** $21.70 (inc GST) — $19.73 AUD, exc GST
- **Quantity discounts:** 6+ $18.75 (exc GST) · 12+ $17.95 (exc GST)

## Availability & dispatch

- Out of stock — the product page offers email notification when it returns.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=DFR0793:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/DFR0793:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

#### Introduction

DIY your favorite Speakers with this digital Bluetooth Power Amplifier! This board integrates Bluetooth 5.0, TF card and U-disk, and features 50W output power and dual-channel output and function buttons that can switch playback mode, pause, switch music, control volume, etc. The board should be operated at DC 12V~24V. You can connect it to [Raspberry Pi](https://core-electronics.com.au/raspberry-pi-4-model-b-4gb.html), mobile phones, and other main-controllers with Bluetooth to build up your projects.

The board also comes with a USB-to-Type-C cable for playing audio on your laptop. Connect the board with your PC correctly, revise the audio output device, then all ready!

![](https://core-electronics.com.au/media/wysiwyg/product_images/dfr0793-Connection-Diagram.jpg)

 **Operating Instruction**

Connect the board with a speaker, power it on, then the red LED lights up. The green LED flashes quickly, and then the board enters Bluetooth mode; Turn on the Bluetooth of your Raspberry Pi or mobile phone, the”VHM-302” will be searched, click to connect it (password 1234). It connects or disconnects successfully with a prompt tone. The Bluetooth will be reconnected automatically when the module is powered on next time. It will play the prompt tone when a U-disk or TF card is plugged in. The input mode can be switched by the MODE button.

![](https://core-electronics.com.au/media/wysiwyg/product_images/dfr0793-Board-Overview.jpg)

- MODE: switch mode. When there is no TF-card or U-disk plugged in, the module enters Bluetooth Mode by default. The mode can be switched when plugging in SD-card or U-disk.
- RUN: start playing
- STOP: pause
- NEXT: short-press to skip to the next song
- VOL+: long-press to increase the volume
- BACK: short-press to skip to the previous song
- VOL-: long-press to decrease volume
- EQ: adjust sound effects
 
**Note:** The board will output adequate power only when the audio input and power source voltage/current are sufficient. The higher the power supply voltage, the larger the output power. Besides that, speaker impedance also changes the amplifier board power output. Please note that in the case of enough voltage and current, the larger the speaker impedance in ohms, the smaller the output power.

#### Specification

- Power Supply: 12-24V
- Output Power: 50W\*2
- Channel: left/right channel(stereo)
- Bluetooth Version: 5.0
- Bluetooth Transmission Distance: 15m (without any obstacle)
 
#### Shipping List

- Digital Bluetooth Power Amplifier(50W\*2) x1
- Manual x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/d/f/dfr0793.jpg)