Douk Audio VU3 Dual Analog VU Meter User Manual
- June 12, 2024
- Douk Audio
Table of Contents
Douk Audio VU3 Dual Analog VU Meter
INTRODUCTION
- VU3 is a multifunctional device integrating an analog VU meter & Amplifier/speaker switcher box, which can provide a wonderful visual experience when switching audio signals.
- All channels of VU3 adopt a fully isolated design, and each group of GND is independent without mutual interference.
- VU3 supports up to 100W power input and output and supports all kinds of amplifiers such as BTL / class A/class B / class D digital amplifier/tube amplifier etc.
- With a remote control function, can quickly set the working status from a distance. All settings can be saved after shutdown, more convenient to use.
- With built-in protection load, when amplifier A or B is not selected, it will automatically switch the built-in load to connect to this amplifier to ensure that the amp will not be unloaded, providing perfect protection for your expensive amplifiers.
FRONT AND REAR PANEL
IR: Remote
A / B / 1 / 2: Amplifier A / Amplifier B / Speaker 1 / Speaker 2
The long Press Button of Amplifier Selection can Power VU3 ON or OFF.
REMOTE CONTROL
HOW TO USE
- Connect the USB power cord to the DC 5V IN interface, and VU3 will auto-power on. And please prepare the CR2025 battery and insert it into the remote control battery socket.
- Connect 2 amplifiers to the corresponding interface of AMPLIFIER A / B and connect 2 pairs of speakers to SPEAKER 1 / 2 of VU3.
- Freely choose Amplifier A or B input and Speaker 1 or 2 output via buttons on the front panel or remote control.
- Rotate the swing range knob to adjust the appropriate swing range to get better display effects.
- After use, long press the AMPLIFIER Button for 3 seconds or press the Power ON/OFF button on the remote control to turn VU3 off.
WARM TIPS
- It is better not to connect VU3 to amplifiers whose actual output power is greater than 100W, or else the VU meter may be damaged. 100W refers to the actual power output from the amplifier to the speaker. For example, your amplifier max can output up to 200W, but you only use it in the room and turn on the volume to about 20W. The actual power is 20W but not 200W.
- VU3 can be used as a 2-IN–OUT or 1-IN-2-OUT switcher between the amplifier and speaker, 2 channels cannot input or output at the same time.
- When power VU3 is off, Amplifier B channel input and Speaker 2 channel output will be auto-selected and can output audio signal normally. And when power VU3 is on again, it will auto-switch to the channels that are set before, this situation is because of the reset state of the relay in VU3 when the power is off.
- The USB power supply can only be single voltage 5V, and the current is at least 1A or above. Not recommended to use fast charging sources with dual voltages, such as 5V and 9V integrated fast charging sources.
TROUBLESHOOTING
The pointer of the VU Meter is moving even though there is no music input.
- The quality of the USB power supply is poor with large ripples that cause great interference. Recommended to change a better USB power supply.
- The output power of the amplifier is too large so the noise is loud, it can only be improved by adjusting SWING RANGE knob, no better solution for this at present.
When choosing certain functions via remote cotrol, the backlight of the VU meter will also flash?
- This is an original design and normal.
PARAMETERS
- Audio input/output: 2 groups of banana female
- Working mode: 2-IN-1-OUT / 1-IN-2-OUT
- Amplifier type supported: all kinds of types (BTL/Class A /Class AB /Class B / Class D digital amp/tube amp)
- Max. through the power of each channel: 100W (in actual)
- Backlight brightness adjustment: 4-level adjustment (can be turned off) Amplifier no-load protection: support
- Remote control function: support
- Settings saved after shutdown: support
- Battery model of remote control: CR2025 3V (may not included) Working voltage: DC 5V (above 1A)
- Power interface: Type-C
- Diameter of VU meter: 60*35mm
- Dimensions(WDH): 17811868mm/7.014.652.68in
- Package dimensions(WDH): 280185155mm/11.027.286.10in Net weight:980g/2.16lb
- Package weight: 1.2kg/2.65lb
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
FREQUENTLY ASKED QUESTIONS
What is the Douk Audio VU3 Dual Analog VU Meter?
The Douk Audio VU3 is a dual analog VU (Volume Unit) meter designed to display audio signal levels in a classic analog format.
What are the main features of the Douk Audio VU3 Dual Analog VU Meter?
The main features of the Douk Audio VU3 include dual analog VU meters, adjustable sensitivity, fast response time, and a vintage-style appearance.
What is the purpose of a VU meter?
A VU meter is used to indicate the volume level of an audio signal in decibels, providing a visual representation of the audio's intensity.
How does the Douk Audio VU3 connect to audio equipment?
The Douk Audio VU3 can be connected to audio equipment using line-level input signals via RCA connectors or speaker-level input via screw terminals.
Can the Douk Audio VU3 be used with both analog and digital audio sources?
Yes, the Douk Audio VU3 is compatible with both analog and digital audio sources as long as they have line-level or speaker-level outputs.
Is the sensitivity of the VU meters adjustable?
Yes, the sensitivity of the VU meters on the Douk Audio VU3 can be adjusted to match different audio input levels.
What is the power source for the Douk Audio VU3?
The Douk Audio VU3 is typically powered by an external DC power supply.
Can the Douk Audio VU3 be used in professional audio setups?
Yes, the Douk Audio VU3 can be used in professional audio setups and home audio systems alike.
Does the VU3 provide peak level indication?
The Douk Audio VU3 primarily displays average audio levels and may not provide peak level indication commonly found in peak meters.
How large are the VU meters on the Douk Audio VU3?
The size of the VU meters can vary, but typical models have a diameter of around 3 inches (approximately 76 mm).
Is the VU3 suitable for use in DIY audio projects?
Yes, the Douk Audio VU3 is often used in DIY audio projects, especially when creating vintage-style audio equipment.
Can the Douk Audio VU3 be rack-mounted?
The Douk Audio VU3 is not rack-mountable by default, but custom rack-mount solutions may be possible with some modifications.
Does the VU3 require any calibration?
The Douk Audio VU3 is usually pre-calibrated, but some models may offer calibration options to fine-tune the meter's accuracy.
Are the VU meters backlit for visibility in low-light environments?
Some versions of the Douk Audio VU3 come with backlighting for improved visibility in dimly lit environments.
VIDEO – PRODUCT OVERVIEW
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