Douk Audio VU56C 56-Bit Level Meter Instruction Manual

Okwu mmalite

The Douk Audio VU56C is a high-resolution 56-bit per channel LED music spectrum display designed to visually represent audio levels. It features 112-bit stereo display, offering real-time visualization of sound changes. This device enhances your listening experience by adding a dynamic visual element to your audio system.

N'ihu view of the Douk Audio VU56C 56-Bit Level Meter, showcasing its LED display.

Atụmatụ igodo

• Ngosipụta mkpebi dị elu: Adopts MCU to process audio signals, providing 56 bits per channel for a total of 112 bits stereo display.
• Adjustable Input Level (Gain): Easily control input signals for optimal display effects.
• Five Display Effects: Includes Main beam, Main beam + peak point drop, Left and right channel beams mirroring-display, Left and right channel beams mirroring-display + peak point drop, and Spring beam.
• Independent Setting Items: All display parameters (descent speed of main beam, descent speed of peak point, stay time of peak point) are independently adjustable with 16-level speed settings.
• Clean Audio Path: Power supply is isolated from audio input/output circuits to prevent interference with sound quality.
• Ndakọrịta sara mbara: Standard stereo L/R RCA input and output for connection with mobile phones, computers, CD players, preamps, ike amplifiers, and studio mixers.

Ihe ngwugwu

Biko chọpụta na ihe niile dị na ngwugwu:

• 1x Finished LED Music Spectrum (Douk Audio VU56C)
• 1 x Micro-USB USB
• 1 Set x Stand
• 1 Set x Isolation Stand Feet
• 1x Akwụkwọ ntuziaka onye ọrụ

Image showing the Douk Audio VU56C, Micro-USB cable, stand components, and isolation feet included in the package.

Melite

1. Connecting Audio and Power

Connect your audio source (e.g., CD player, computer, phone) to the IN RCA ports on the back of the VU56C. Connect the Mpụ RCA ports to your audio receiver, amplifier, or mixer. Power the device using the provided Micro-USB cable connected to a DC 5V/100mA power source.

Diagram illustrating the audio input (IN) from sources like phones or computers, and audio output (OUT) to devices such as amplifiers ma ọ bụ preamps, along with the GAIN knob, SET button, PREV/NEXT buttons, USB power input, and Ground set switch.

2. Ịchịkọta nkwụsi ike

The VU56C comes with a stand for vertical placement. Ensure to mount the stand components with the same serrations on the same side for stability. Attach the isolation stand feet to the bottom of the unit or stand as desired.

Image showing the vertical stand assembly for the VU56C and the included isolation stand feet.

Ntuziaka ọrụ

1. Gbanyụọ / gbanyụọ

The device supports power on/off functionality and power-off memory. To turn on, press and hold the 'SET' button for 3 seconds. To turn off, press and hold the 'SET' button again for 3 seconds.

2. Adjusting Input Level (GAIN)

Jiri ihe URU knob on the back of the unit to adjust the input audio level. This helps in achieving the best visual beating effects on the LED display, matching the intensity of your audio signal.

3. Changing Display Effects

The VU56C offers 5 distinct display effects. In normal operating mode (not setup mode), use the PREV na OSOTE buttons to cycle through the different display effects:

1. Isi ọkụ
2. Main beam + peak point drop
3. Left and right channel beams mirroring-display
4. Left and right channel beams mirroring-display + peak point drop
5. Spring beam (Note: This effect does not support setting item adjustments.)

4. Setup Mode and Parameter Adjustments

To enter setup mode, press the SET button briefly. In setup mode, the 'Flash LED' indicates the current setting option value. Use the PREV na OSOTE buttons to change the value of the selected parameter. Press the SET button again to move to the next option or to exit setup mode.

The adjustable parameters (each with 16-level speed adjustments) include:

• The descent speed of the main beam
• The descent speed of the peak point
• The stay time of the peak point

All setup parameter changes will be displayed in real-time on the 'Preview bar'.

Diagram explaining the main display bar, peak LED, flash LED, and the setup bar with zones for main display falling speed, peak LED falling speed, and peak LED holding time settings. It also shows how to use PREV/NEXT and SET buttons in setup mode.

Nlekọta

To ensure the longevity and optimal performance of your Douk Audio VU56C, follow these maintenance guidelines:

• Keep the device in a clean, dry environment, away from direct sunlight, high temperatures, and humidity.
• Avoid exposing the unit to water or other liquids.
• Jiri akwa dị nro hichaa mpụta. Ejila kemịkalụ siri ike ma ọ bụ ihe mkpocha abrasive.
• Gbaa mbọ hụ na ikuku ikuku dị na gburugburu unit ahụ iji gbochie ikpo oke ọkụ.
• Jiri nlezianya jikwaa ngwaọrụ ahụ iji gbochie mmebi anụ ahụ.

Nchọpụta nsogbu

If you encounter issues with your Douk Audio VU56C, please refer to the following common problems and solutions:

No Display or Weak Display

• Lelee Ike: Ensure the Micro-USB cable is securely connected to a DC 5V/100mA power source and the unit is powered on.
• Check Audio Input: Verify that the audio source is playing and connected correctly to the IN RCA ports.
• Adjust GAIN: Rotate the GAIN knob to increase the input level. If the input signal is too low, the display may not activate or appear weak.

Audible Noise in Audio System

Some users have reported audible noise (hum or clocking noise) when the unit is connected in pass-through mode or even when splitting the audio signal. This can be due to grounding issues or power supply interference.

• Ground Set Switch: Try adjusting the 'Ground set' switch on the back of the unit. Default is 'I'. If you experience back noise, switch to 'O'.
• Wepụ Ọkụnye Ike: Use a different USB power adapter or a high-quality, isolated power supply.
• Audio Isolation: Consider using an audio isolation transformer or a mixing board between your audio source and the VU56C to electrically isolate the signal path.

Display Inaccuracy Between Channels

Due to the high resolution and MCU signal processing, a slight error of 1-3 bits between left and right channels may occur even with identical input signals. This is considered normal operation for this device.

Nkọwapụta

Akwụkwọ ikike na nkwado

Douk Audio products are designed for reliability and performance. For warranty information or technical support, please refer to the contact details provided with your purchase or visit the official Douk Audio websaịtị. Debe nnata nzụta gị dị ka ihe akaebe nke ịzụrụ ihe maka akwụkwọ ikike ọ bụla.