Douk Audio DZ044-UK TONE Bluetooth Digital Power Amplifier User Manual

Douk Audio DZ044-UK TONE Bluetooth Digital Power Amplifier

Product Information

Specifications

• Model: Douk Audio TONE
• Type: Bluetooth Digital Power Amplifier
• Power Supply: Default 19V/3.42A
• Output Power: Up to 50W*2
• Audio Inputs: RCA/AUX/USB/Bluetooth
• Audio Outputs: Speaker/Headphone
• Bluetooth Version: 5.0

NOTICE

• AUX and USB modes only can be switched and chosen when there are AUX and USB audio source inputs.
• Headphone output and USB input are with priority.
• Please connect Tone to the power supply first and then plug it into the socket, otherwise, there will be some sparks but still safe and no harm to TONE.
• Default with 19V/3.42A power supply, if you want higher output power you can prepare -another 24V high-quality 5.5mm/ 2.1-2.5mm power supply by yourself.

Features

1. Supports RCA/AUX/USB/Bluetooth inputs and speaker/headphone outputs to meet all kinds of home audio system devices.
2. Bluetooth 5.0 is compatible with various Bluetooth devices, and can also be used as a USB sound card for computers (no driver required) and phones (with OTG function).
3. Provides Hi-Fi clear sound with no audible noise even at large power output.
4. Strong power output of up to 50W*2, capable of driving most home speakers.
5. Unique dual LED display on the mirror panel, shows the volume clearly and enhances the music listening experience.
6. Compact size and attractive appearance suitable for home and desktop use.
7. Hi-Fi clear sound, no audible noise even at large power output.
8. Mini size and attractive appearance suit home and desktop use.

HOW TO USE

1. Connect the TONE to the power supply and then plug it into the socket, the left red LED in the front panel will be on.
2. Wired input:
3. According to an audio source and load, connect the proper audio input (USB / RCA / AUX) and output (speaker/headphone) cable.
4. Long press the power button for 2S to turn it on and the right LED will be on.
5. Short press the VOLUME/MODE to select the right audio input mode.
6. Wireless input:
   • Connecting TONE output to the speaker or headphones.
   • Long press the power button for 2S to turn it on and the right LED will be on.
   • Short press the VOLUME/MODE knob to Bluetooth mode when the Bluetooth icon LED flashes.
   • Search Bluetooth named Douk Audio TONE on your audio device, after a successful connection, the Bluetooth LED will be always-on.
7. Then you can adjust the volume by rotating the VOLUME knob, and pause/play the music by short pressing the power button.

Contact Information

Address: Room 1329, Wang Cheng Building, Long Guan Street, Long Hua New District, Shenzhen, Guang Dong, China

Product Usage Instructions

1. Power Connection
   Connect the Douk Audio TONE to the power supply first, then plug it into the socket. The left red LED on the front panel will turn on to indicate a power connection.

2. Wired Input
   For wired input, choose the appropriate audio source and load. Connect the corresponding audio input (USB/RCA/AUX) and output (speaker/headphone) cables. Long press the power button for 2 seconds to turn on the amplifier. The right LED will turn on. Use the VOLUME/MODE knob to select the desired audio input mode.

3. Wireless Input (Bluetooth)
   To use wireless input via Bluetooth, connect the Douk Audio TONE output to the speaker or headphones. Long press the power button for 2 seconds to turn on the amplifier. The right LED will turn on. Short press the VOLUME/MODE knob to enter Bluetooth mode when the Bluetooth icon LED flashes. On your audio device, search for and connect to the Bluetooth device named “Douk Audio TONE”. Once successfully connected, the Bluetooth LED will remain lit.

4. Volume Adjustment and Playback Control
   After connecting and selecting the desired audio input mode, you can adjust the volume by rotating the VOLUME knob. To pause/play the music, short press the power button.

Note
There is a protective film on the front panel of the amplifier. You can remove it before use.

Knob and Button Functions

• Power button:
  • Long press for 2 seconds to power on/off
  • Short press to play/pause
• VOLUME/MODE knob:
  • Rotating clockwise/anti-clockwise to adjust the volume (when it reaches the maximum/minimum volume, the right red LED will flash)
  • Short press to select audio input mode (USB, AUX, RCA, Bluetooth)

Frequently Asked Questions (FAQ)

Can I switch between AUX and USB mode?
AUX and USB modes can only be switched and chosen when there are corresponding audio source inputs.

What is the default power supply of the Douk Audio TONE?
The default power supply is 19V/3.42A.

Can I use a higher output power supply?
If you want higher output power, you can prepare a larger power supply by yourself, such as a 24V high-quality 5.5mm/2.1-2.5mm power supply.

PARAMETERS

• Bluetooth: 5.0 Version, 10-20M distance
• Audio Inputs: RCA, 3.5mm AUX, Bluetooth and USB.
• Audio Outputs: Banana Speaker Jacks and 3.5mm headphone
• Output Power: 50W*2 (24V/4Ω load)
• Speaker Impedance: 4Ω-8Ω
• Headphone Impedance: 8Ω-300Ω
• Frequency Response: 20Hz-20KHz(±1dB)
• SNR: ≥98dB
• Power Supply: DC9V-24V (with reverse polarity protection)
• Dimensions: 887052mm / 3.462.762.05 in
• Net Weight: 0.2KG / 0.44lb
• Package Weight: 0.75KG / 1.65lb

CONTACT 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

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