Douk Audio GFJ782 Bluetooth Stereo Power Amplifier Manual: Learn How to Use
- June 4, 2024
- Douk Audio
Table of Contents
The Douk Audio GFJ782 Bluetooth Stereo Power Amplifier is a powerful device that can enhance your audio experience. Whether you want to listen to music from your phone, tablet, or computer, this amplifier can deliver high-quality sound with ease. To help you get started, the manufacturer has provided a user manual that outlines all the necessary steps to use this device. The manual includes important information on how to select different input modes, connect different audio sources, and adjust the volume. It also provides some helpful tips on how to avoid noise when connecting certain devices and how to prepare the power supply for optimal performance. In addition, the manual lists all the technical specifications of this device, such as its maximum output power, speaker impedance, and frequency response. Whether you are a music enthusiast or a professional audio engineer, this manual can help you make the most of your Douk Audio GFJ782 Bluetooth Stereo Power Amplifier.
Bluetooth Stereo Power Amplifier
—— & Digital Music Player ———
NOTICE
- TF card and USB input mode only can be selected after you insert TF card and U-disk, or connect it to computer.
- 3.5mm AUX input is suitable for the audio device with low level output such as phone, tablet, MP3 etc. Connecting device with high level output like CD player to 3.5mm AUX input may result in some noise.
- If you buy the version with power supply(19V/4.74A Max Output 90W), enough to drive most home speakers. If you buy the version without power supply or want higher output, please prepare it (DC9V-24V 5.5mm/2.1-2.5mm) by yourself.
- There is a thin film on the front panel, you can tear it off to get more smooth and brighter panel or keep it to protect the panel from being scratched.
HOW TO USE
-
Connect proper passive speakers to the output, and please connect the amp to power adapter firstly and then plug the power cord to the socket, avoiding electric sparks.
-
PC-USB/RCA/AUX input:
According to different audio source, choose proper audio input way and connect them with high-quality cable, press the Mode button to select correct input mode. -
Bluetooth input:
Long press the power button to turn it on, and press Mode button to select Bluetooth mode, and then search and click to connect successfully. -
TF card/U-disk input
Insert U-disk or TF card, long press the knob to turn it on, then press Mode button to choose corresponding input mode, plug, and play. Previous & next song and play & pause buttons are only available under these modes. -
Then you can rotate the knob to adjust proper volume, just enjoy its HiFi sound.
PARAMETERS
|
---|---
SPECIFICATION
| Brand | Douk Audio |
|---|---|
| Audio Inputs | RCA / 3.5mm AUX / Bluetooth / USB / TF card |
| Audio Output | Banana Speaker Jacks |
| U-disk/TF card Supporting Format | MP3, WAV, APE, FLAC |
| Max U-disk / TF Card Storage | 128G |
| Max Output Power | 50W*2 (24V/4Q load) |
| Speaker Impedance | 4-160 |
| Frequency Response | 20Hz-20KHz |
| Working voltage | DC 9V-24V |
FAQS
What audio inputs does the Douk Audio GFJ782 Bluetooth Stereo Power Amplifier support?
The Douk Audio GFJ782 Bluetooth Stereo Power Amplifier supports RCA, 3.5mm AUX, Bluetooth, USB, and TF card audio inputs.
How do I select different input modes on the amplifier?
To select different input modes on the amplifier, you need to press the Mode button and choose the correct input mode according to the audio source.
Can I connect a CD player to the 3.5mm AUX input?
It is not recommended to connect a CD player or any audio device with high- level output to the 3.5mm AUX input as it may result in some noise.
What is the maximum output power of the Douk Audio GFJ782 Bluetooth Stereo Power Amplifier?
The maximum output power of the Douk Audio GFJ782 Bluetooth Stereo Power Amplifier is 50W*2 (24V/4Q load).
What is the speaker impedance range that this amplifier supports?
The speaker impedance range that this amplifier supports is 4-160.
What audio formats are supported by the U-disk/TF card input?
The U-disk/TF card input supports MP3, WAV, APE, and FLAC audio formats.
How do I connect my device to the amplifier via Bluetooth?
To connect your device to the amplifier via Bluetooth, you need to long press the power button to turn it on, press Mode button to select Bluetooth mode, and then search and click to connect successfully.
What is the working voltage range of this amplifier?
The working voltage range of this amplifier is DC 9V-24V.
What should I do if I experience noise when connecting certain devices?
If you experience noise when connecting certain devices, try connecting them to a different input mode or use a high-quality cable to connect them.
CONTRACT INFORMATION
Address: Room 1329, Wang Cheng Building, Long Guan street, Long Hua new
District, Shenzhen, Guang Dong, China
Contact: LIU CHENXI
Tel: +86-18570015672
Email: nobsound@doukaudio.com