Douk Audio VU56PRO User Manual

1. Introducció

The Douk Audio VU56PRO is an advanced MIC+LINE Stereo RGB LED Sound Level Meter, Audio Splitter, and Switcher. It provides a high-resolution visual representation of audio levels, offering both PPM (peak programme meter) and VU (volume unit) modes. This device is designed to enhance your audio experience with dynamic visual feedback and versatile connectivity options.

2. Característiques clau

• Pantalla d'alta resolució: 56 bits per channel, 112-bit stereo display for precise real-time audio level visualization.
• Modes de visualització dual: Supports PPM (0dB=1.5Vpp) and VU (0dB=0.775Vrms) modes for varied applications.
• Customizable Visuals: Switchable green/red main bar and peak LED colors, with 8 distinct display effects.
• Audio Converter/Splitter: Functions as an audio converter/splitter with RCA and 3.5mm AUX inputs and outputs.
• Comandament a distància: Full-function remote for convenient adjustment of all settings, which are saved upon shutdown.
• Construcció robusta: Features a cool aluminum CNC black case for durability and an exquisite appearance.
• Potència flexible: Powered by USB 5V, suitable for various environments.

3. Contingut del paquet

Si us plau, verifiqueu que tots els elements siguin presents al vostre paquet:

• 1x Douk Audio VU56PRO Sound Level Meter
• 1x comandament a distància
• 1x cable USB
• 1 cable AUX de 3.5 mm
• 1x Manual d'usuari (aquest document)

4. Informació de seguretat

• Ensure the device is powered by a DC 5V (≥1A) USB power source.
• No exposeu el dispositiu a l'aigua ni a una humitat excessiva.
• Avoid disassembling the unit, as this may void the warranty and cause damage.
• Keep the device away from high temperatures and direct sunlight.
• Use only the provided or recommended cables for connections.

5. Producte acabatview

Panell frontal

The front panel features the stereo RGB LED display, showing audio levels for left (L) and right (R) channels. The display includes markings for various dB levels, including 0VU and +6dB.

Imatge 5.1: Frontal view of the Douk Audio VU56PRO, showcasing the stereo RGB LED display.

Panell posterior

The rear panel houses all input and output connections, along with control switches. It includes RCA and 3.5mm AUX inputs/outputs, a microphone pick-up hole, mode switch, power switch, and a Micro USB power input.

Image 5.2: Detailed diagram of the VU56PRO rear panel, illustrating input/output ports and controls.

• LINE 1 IN/OUT (RCA): Stereo RCA input and output.
• LINE 2 IN/OUT (3.5mm AUX): Stereo 3.5mm AUX input and output.
• Interruptor de MODE: Toggles between display effects, and a long press (3 seconds) powers the unit on/off.
• Interruptor MIC/LINE: Selects between microphone input mode and line input mode.
• Microphone Pick-up Hole: Integrated microphone for MIC input mode.
• ENTRADA USB: Port micro USB per a alimentació de 5 V CC.

Nota: The inputs and outputs of LINE 1 and LINE 2 are connected in parallel. Only one set of inputs and outputs should be connected at a time for proper operation.

6. Configuració

1. Connexió d'alimentació: Connect the provided USB cable to the 'USB IN' port on the rear panel and plug the other end into a DC 5V (≥1A) USB power adapter (not included) or a compatible USB port.
2. Connexió d'entrada d'àudio:
   • Entrada de línia: Connect your audio source (e.g., CD player, MP3 player, computer, phone) to either the RCA 'LINE 1 IN' or 3.5mm AUX 'LINE 2 IN' ports using the appropriate cable.
   • Entrada de micròfon: For ambient sound detection, ensure the 'MIC/LINE' switch is set to 'MIC'. No external audio cable is needed for this mode.
3. Audio Output Connection (Optional): If using the VU56PRO as an audio splitter/switcher, connect your amplifier or active speakers to either the RCA 'LINE 1 OUT' or 3.5mm AUX 'LINE 2 OUT' ports.
4. Encès: Long press the 'MODE' switch for 3 seconds to power on the device. The LED display will illuminate.

Image 6.1: The VU56PRO seamlessly integrated into a desktop audio environment, demonstrating its visual appeal.

7. Instruccions de funcionament

7.1 Display Modes (PPM / VU)

The VU56PRO supports two primary display modes:

• PPM Mode (Peak Programme Meter): 0dB = 1.5Vpp. Recommended for general dynamic display and visual effects.
• VU Mode (Volume Unit): 0dB = 0.775Vrms. More suitable for professional audio level monitoring.

Switch between these modes using the remote control or the 'MODE' button on the device.

Image 7.1: Illustration of the two display modes, PPM and VU, showing how the VU56PRO adapts to different monitoring needs.

7.2 Personalització de la pantalla

The VU56PRO offers extensive customization options for its LED display:

• Display Effects: Choose from 8 different display effects to personalize the visual experience.
• Color de la pantalla: The main bar and peak LED colors can be switched between green and red.
• Ajust de brillantor: Adjust the display brightness across 4 levels.
• Display Length Gain: Adjust the sensitivity of the display with 3 levels: -3dB, 0dB, +3dB.
• Peak LED Holding Time: Configure how long the peak LED remains illuminated.
• Drop Speed: Adjust the speed at which the main bar and peak LED fall.

Image 7.2: The VU56PRO demonstrating its capability to display 8 different effects and switchable colors, enhancing visual engagement.

7.3 Funcionament del control remot

All settings can be conveniently adjusted using the included remote control. Settings are automatically saved even after the device is powered off.

Image 7.3: The VU56PRO shown with its remote control, emphasizing ease of adjustment from a distance.

8. Manteniment

• Neteja: Feu servir un drap suau i sec per netejar l'exterior del dispositiu. No utilitzeu netejadors líquids ni materials abrasius.
• Emmagatzematge: Quan no l'utilitzeu durant períodes prolongats, guardeu el dispositiu en un lloc fresc i sec, allunyat de la llum solar directa.
• Ventilació: Assegureu-vos que hi hagi un flux d'aire adequat al voltant del dispositiu per evitar el sobreescalfament.

9. Solució De Problemes

• Sense pantalla/alimentació:
  • Ensure the USB power cable is securely connected and the power source is active (DC 5V, ≥1A).
  • Long press the 'MODE' switch for 3 seconds to power on the device.
• No Audio Level Display:
  • Check if the audio input cables are correctly connected to 'LINE IN' ports.
  • Verify that the audio source is playing and its volume is sufficient.
  • Ensure the 'MIC/LINE' switch is set to 'LINE' for external audio sources or 'MIC' for ambient sound.
  • Adjust the 'Display Length Gain' setting via the remote control.
• Incorrect Level Display:
  • The maximum effective input level is 1.8Vrms. Exceeding this may result in a full display.
  • Adjust the input level from your audio source or use the 'Display Length Gain' setting.
  • Ensure the correct display mode (PPM or VU) is selected for your application.
• El control remot no respon:
  • Comproveu la pila del comandament a distància i substituïu-la si cal.
  • Assegureu-vos que no hi hagi obstruccions entre el comandament a distància i el dispositiu.

10. Especificacions

11. Garantia i Suport

Douk Audio products are designed for reliability and performance. For warranty information or technical support, please refer to the official Douk Audio weblloc web o poseu-vos en contacte amb el vostre distribuïdor. Conserveu el comprovant de compra per a reclamacions de garantia.

Per obtenir més ajuda, visiteu el Douk Audio Store on Amazon.